Duct Sealing, Repair, & Insulation in the San Fernando Valley and beyond

Keeping the San Fernando Valley Comfortable Since 1963

Ducts play a greater role in your home’s comfort — and your utility bills —than you may think. Duct issues, from leaks to buildup to poor insulation, are often the hidden cause of high energy bills and uneven comfort. Luckily, MightyServ Heating and Air Conditioning offers air duct sealing, repair, and insulation services across greater Los Angeles. For over 60 years, we’ve been the Valley’s trusted choice for home comfort, with over 65,000 customers served.

Your Ductwork Is Quietly Costing You Money

The Department of Energy has concluded that over 25% of the money you spend to heat or cool your home is lost in your ductwork. In some houses, over 50% of the air meant to be inside your house is lost through leaking ductwork.

Sealing and insulating services can combat this issue. At MightyServ, our NATE-certified technicians are trained to complete comprehensive duct services that leave your home more efficient and your air cleaner.

Signs Your Ducts Need Attention

  • Rooms that won’t heat or cool evenly. Or temperatures that aren’t even close to what you set on the thermostat.
  • Higher than expected energy bills. Especially when you can’t pinpoint a reason why.
  • Excessive dust around vents or in the home. In addition to being an eyesore, dust buildup can pose a safety hazard.
  • Musty or stale air from vents. If changing your air filter doesn’t help, there may be a deeper problem.
  • The system runs longer than it should to reach temperature. This is a sign that dust buildup in your ducts is causing the system to run inefficiently.
  • Visible damage, disconnected sections, or collapsed flex duct. These signs are worth calling a heating and cooling professional over, right away.
  • Ducts in unconditioned spaces (attic, crawlspace) with no insulation. Duct insulation can reduce energy waste and lower your utility bills.
  • The system is 15+ years old, and ducts have never been assessed. Ducts should be cleaned every 3 to 5 years, and occasionally assessed to ensure they aren’t leaking air.

Duct Services We Provide

We offer duct services in Canoga Park and throughout the San Fernando Valley to keep your air clean and your heating and cooling systems running efficiently.

Duct Sealing

After an assessment of your home, we may recommend sealing your ducts with mastic, metal tape, or spray-on sealant and balancing the duct system to optimize airflow to all rooms.

Duct Repair

Damaged, collapsed, or disconnected sections should be repaired or completely replaced. We’ll determine whether a flex duct or hard duct is best for your home.

Duct Insulation

Insulating ductwork in attics, crawlspaces, and basements can save energy and make your home more comfortable. In the Los Angeles area, where temperatures often climb, duct insulation helps you keep cool.

Duct Cleaning

Keeping your ducts clean is vital to maintaining the quality of the air in your home. Clean air ducts will also help your HVAC unit operate at peak efficiency, saving you money on monthly utility bills.

Duct Sealing: Stopping the Waste

Ducts develop leaks over time due to age, improper original installation, or pest damage. Leaky ductwork and poor airflow can result in stuffy, uncomfortable rooms regardless of the thermostat setting.

After an assessment of your home, we’ll seal any leaks with mastic, metal tape, or spray-on sealant, depending on the duct type and location. Afterward, we’ll balance the airflow and ensure no duct leaks remain. As a result, you can expect less energy waste and savings on your energy bill.

Duct Repair Services: When Sealing Isn’t Enough

There’s a difference between gaps and true damage. Gaps result in small leaks that can be easily sealed. But damage such as disconnected or collapsed duct sections requires full repair and replacement. In the San Fernando Valley, this kind of damage usually results from pest infestations, DIY fixes, mistakes during original installation, and simple aging in older homes.

After assessing the damage, we’ll walk you through your options, including flex vs. rigid duct repair. The assessment will determine the scope of the fix, and we’ll clearly communicate our recommendation and the cost — no surprise fees or upsells.

Duct Insulation: Keeping Conditioned Air Where It Belongs

Uninsulated ducts in attics and crawlspaces are often the reason for lost efficiency. That’s because conditioned air absorbs heat from the surrounding unconditioned space. Houses of all ages, styles, and sizes can benefit from insulation, especially for SFV homes with attic ductwork as summer temperatures climb.

We offer cost-effective insulation that maintains balanced interior temperatures year-round. Our experienced team installs premium insulation with proven, innovative techniques in just a few hours.

It’s important to note that duct insulation is a separate service from attic insulation, though both are beneficial and can be performed in the same visit.

Duct Cleaning: Air Quality From the Inside Out

We highly recommend regular duct cleaning every 3 – 5 years, or more frequently in homes with pets or allergy sufferers. After a renovation, duct cleaning should be the last step to clear out construction dust.Duct cleaning is crucial for the performance and longevity of your heating and cooling system. Over time, dust, debris, allergens, and even mold can build up, leading to poor air quality and flare-ups in people with asthma or other respiratory conditions.

We offer cost-effective insulation that maintains balanced interior temperatures year-round. Our experienced team installs premium insulation with proven, innovative techniques in just a few hours.

During a duct cleaning service, we’ll use a powerful vacuum cleaner to create suction throughout your system. Then, our technicians will use tools to dislodge debris until it’s pulled into the vacuum. To finish, we clean the registers, grills, heat exchanger, and blower motor. The whole process takes about 3 – 5 hours — a relatively quick investment in your home’s comfort and your family’s health.

Attic Insulation Services

At MightyServ, we specialize in blown-in and sprayed-in attic insulation. There are many types of insulation to choose from, and much of the choice comes down to climate. The more extreme the weather conditions, the more “R value” (resistance to heat flow) you need. Many insulation products are made with cellulose, an environmentally friendly material. They’re also often non-invasive, keeping your structure intact while providing weather protection.

When you schedule an attic insulation service with MightyServ, we’ll assess the temperature in your area, measure your crawlspace or attic, and recommend the type of attic insulation that best fits your needs. Then, we’ll install it in a time-efficient manner with a provable energy-saving outcome.

We’re also available for new construction insulation installation. New construction is the perfect opportunity to install high-quality insulation products. Our premium-grade insulation will not only reduce your energy bills and decrease your environmental footprint, but also provide a comfortable home for your entire family.

Why Choose MightyServ for Duct Services

San Fernando Valley homeowners have chosen us to improve their homes’ comfort since 1963. Here are a few reasons why:

  • Full duct system assessment before recommending any service
  • Experienced with all duct types, including flex, rigid, and older materials
  • NATE-certified technicians who know Valley homes inside and out
  • Honest scope — we’ll tell you what actually needs doing, without upsells
  • 60+ years serving the San Fernando Valley
  • 4.9-star Google review average

What Our Customers Are Saying

Posted on Google Google
Miriam Green profile picture
Miriam Green
1 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jeremiah was very thorough and professional.
Posted on Google Google
John Mutter profile picture
John Mutter
2 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brian was very professional with the service and punctual. He was courteous, knowledgeable & I was happy with his overall performance. 5 Stars.
Posted on Google Google
PJ Prakash profile picture
PJ Prakash
5 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
MightyServ did a fantastic job with the HVAC installation at my home. From start to finish, they were incredibly professional, punctual, and thorough. Leal took the time to explain every detail of the system and answered all my questions with patience and clarity. The installation was completed right on schedule, and the quality of their work really shows. I couldn’t be happier with the service and highly recommend MightyServ to anyone looking for reliable HVAC professionals!
Posted on Google Google
Patrick Hagiwara profile picture
Patrick Hagiwara
8 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Marlon spent extra time and effort on improving insulation and cleaning the unit of debris.
Posted on Google Google
Alex Brown profile picture
Alex Brown
8 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Rodrigo AKA Rigo arrived early, before 8 am which was welcomed. He was friendly and professional during his visit to service my heater and check the AC portion as part of the bi-annual maintenance on our residential HVAC system for the upcoming winter (El Niño currently in our So Cal weather forecast). He informed me that he would be turning off and on the air conditioner to test that part of my system as well. Once completed Rigo clearly explained what he found and shared photos he had taken of my system during the testing and inspection process. The office staff is also great at scheduling my bi-annual appointments. With the new no hassle scheduling they called me the evening before my service to let me know the Tech (Rigo) is was making me his first call and would arrive around 8am which he did. I have used their services since the early 2000s and recommend MightyServ for anyone seeking annual maintenance or new installs. Thanks for providing great service and repairs. Alex
Posted on Google Google
voicer1 profile picture
voicer1
10 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Kevin from Mightyserv was here to give me an estimate to replace the condensor in my A/C system. He was prompt and very through. He gave several ways to go and gave a good explanation of all the options. I have used this company for over 30 years in several residences. They have always been truthful and honest and do excellent work.
Posted on Google Google
Carolina Shorter profile picture
Carolina Shorter
15 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
They are absolutely exceptional!!!!! Aside from doing a great job, with they are so organized and make you feel safe by calling to make sure you know who to expect etc. Shawn Flores the gentleman who was sent to our house delivered a 5 star job, going above and beyond to take care of every detail. I highly recommend them!!!
Posted on Google Google
Thomas Hedge profile picture
Thomas Hedge
15 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
AC went out in hottest days of July. Eddie came out and trouble shot the problem and repaired it. It is cool again!
Posted on Google Google
Jairo Osorio profile picture
Jairo Osorio
15 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
The service was part of my service agreement, and the seevice today went great, the technician showed up on time and was professional.
Posted on Google Google
Anthony Augi profile picture
Anthony Augi
18 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
On time, very professional and explains everything as needed.
Posted on Google Google
Edward Olsen profile picture
Edward Olsen
19 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent and knowledgeable service
Posted on Google Google
Adriana Valenzuela profile picture
Adriana Valenzuela
20 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We were concerned that the A/C was broken but it was a clogged pipe. Jose identified the problem right away. A/C is working smoothly now!
Posted on Google Google
Mark Hunter profile picture
Mark Hunter
21 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brain was absolutely well mannered and very professional and was a delight to talk to
Posted on Google Google
Marti Schwartz profile picture
Marti Schwartz
22 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was very knowledgeable and very friendly, helpful and honest.
Posted on Google Google
John Conforti profile picture
John Conforti
23 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jose showed up on time, and performed routine semi-annual maintenance. He was very professional and was very polite and pleasant. The service was excellent.
Posted on Google Google
Tina Martin profile picture
Tina Martin
24 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
COMMENDABLE SERVICE CAME OUT THE SAME DAY FIR AN EMERGENCY...GREAT CUSTOMER SERVICE!!!!
Posted on Google Google
Isabelle Carroll profile picture
Isabelle Carroll
24 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very happy with the service Brian was very . professional.
Posted on Google Google
Gerald Lines profile picture
Gerald Lines
25 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Had air check, did an excellent job, were clean and quick. Thank you!
Posted on Google Google
Bonnie Moore profile picture
Bonnie Moore
26 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent through service.
Posted on Google Google
Peter Garey profile picture
Peter Garey
26 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very happy with promptness, knowledge and no-nonsense repair work. Def recommend!
Posted on Google Google
escope1959 profile picture
escope1959
30 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Nice people, good service
Posted on Google Google
Aliki Stilianos profile picture
Aliki Stilianos
31 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Collin was polite, respectful and very patient in explaining the functioning of my heaters. He’s an asset to your company. Please pass on my good thoughts about him to him.
Posted on Google Google
Evangeline Dobbs profile picture
Evangeline Dobbs
31 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was personable, knows what he needs to do the job
Posted on Google Google
Viran Perera profile picture
Viran Perera
32 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very knowledgeble in the HVAC systems. Very courteous & well mannered. Best wishes!
Posted on Google Google
Lora Novak profile picture
Lora Novak
35 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have consistently used Mightyserv for myself and three rentals, and the company has been great on every service call. Today, Alexander completed a service call after my tenant reported water leaking under the system. Alexander was great in communicating with me about his finding and what he did. He made good recommendations going forward.
Posted on Google Google
Brian Gobeli profile picture
Brian Gobeli
36 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had a specialist come out for lack of airflow in a particular room, and general maintenance, and I had Rigo at my house. His explanation of everything going on, where he was at in the process, all of the findings and issues I had were very clear, with photos. He then came back with a solution that was fairly priced, and very much fixed an issue I didn’t even know I had. My air conditioner is working much better now. Rodrigo had amazing customer service skills. He was polite, nice, clean and willing to go the extra mile even in the summer heat.
Posted on Google Google
Ken Elfand profile picture
Ken Elfand
36 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alex identified the leak with the condenser drain line and corrected the problem. He was patient and very helpful. We will request that he does all future service.
Posted on Google Google
Alyse Silverman profile picture
Alyse Silverman
37 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Could not be happier than I am! Brian was most professional, polite, accommodating, and thorough. His patience and kindness was exceptional. The entire process from my first original call to completed job was effortless and expertly executed. Every time I use them, the experience is superb!!
Posted on Google Google
Susan Ealum profile picture
Susan Ealum
39 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Courteous and well trained technicians. They always provide a detailed report of work andcservice provided. We have used and trusted Mighty Serv since 2008 when they installed out HVAC unit !
Posted on Google Google
Aganaze Jones profile picture
Aganaze Jones
39 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
My or was very professional and positive. He explained and showed me in my unit why my condenser needed to be replaced.
Posted on Google Google
PATTI TAYLOR profile picture
PATTI TAYLOR
40 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
HE WAS PROFESSIONAL, CHECKED WHAT WE THOUGHT WAS THE THERMOSTAT AND AGREED IT WAS THE THERMOSTAT THAT WAS CAUSING THE FAN FROM BEING ABLE TO TURN OFF. THE NEW THERMOSTAT OFFERED WAS TOO EXPENSIVE AND NOT SOMETHING I COULD AFFORD TO PURCHASE AT THIS TIME.
Posted on Google Google
Tina Cabral profile picture
Tina Cabral
42 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Marlon was very professional and informative. I feel he did a very good job.
Posted on Google Google
Sarah Boyle profile picture
Sarah Boyle
45 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very nice tech and did his job well
Posted on Google Google
Dennis Ulick profile picture
Dennis Ulick
45 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Arrived on time for scheduled maintenance appointment. Technician was friendly and exhibited a very professional demeanor. He conducted a comprehensive evaluation of HVAC and determined no issues exist. Thanks for the great service.
Posted on Google Google
Marshall Lefton profile picture
Marshall Lefton
52 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Did great job, honest, provided information needed.
Posted on Google Google
Tara Hernandez profile picture
Tara Hernandez
52 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was incredibly communicative, efficient and overall just very pleasant to work with. Would recommend this company and this technician.
Posted on Google Google
Irene Mak profile picture
Irene Mak
52 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Marlon was prompt, professional and answered all my questions. He mentioned that they are one of the few remaining small businesses that are not acquired by equity firms. We like to support small businesses because they take pride in what they do. Yes, I recommend this business to everyone.
Posted on Google Google
John Clark profile picture
John Clark
53 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Fast efficient! Wow These are good guys and - very professional. Hey diagnosed my issues in an hour. Turned out to be an over pressurized system. Too much coolant. Apparently there is a sweet spot for refrigerant coolant. Mine had too much. Thank Jose He’s really good.
Posted on Google Google
MsCaliforniapoppy profile picture
MsCaliforniapoppy
53 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent service!! Kevin clearly and throughly explained what was wrong, what was needed, and how he solved our problem. He also explained how we should use the appliance to prevent over loading it thereby prolonging the life of our AC unit. We will request him next time we have an AC or heater issue. Excellent!!
Posted on Google Google
Paul Fiene profile picture
Paul Fiene
54 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent service. Thanks.
Posted on Google Google
Andrew Mason profile picture
Andrew Mason
59 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I've dealt with 6 different HVAC companies in the Los Angeles area thus far and MightyServ blows all of the other companies out of the water. Amazing service. MightyServ is transparent and don't try to upsell you on parts that aren't actually broken like other companies do. The only company that actually respected my home by protecting the floor with a mat and shoe covers. Actually on time. Showed up the same day I called. I had Nathan come to my apartment to service my HVAC unit and he was training a technician. Both couldn't have been nicer or more professional. I would recommend this company over any other in the Los Angeles area.
Posted on Google Google
Huy Do profile picture
Huy Do
60 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Leal, Eduardo, and the whole MightyServ team are absolutely awesome. We bought two heat pump units for our property earlier this year and it has been a great experience. They are everything we expect from a business: transparent on service and pricing, communicative on scheduling, punctual on services, and all-around professional. Leal walked us through exactly what we were buying and provided all the documentation needed for our rebate. Eduardo and the team executed the installation, inspections, and commissioning of units. Since the installation, we have needed some things addressed and the MightyServ team had a technician come out the same day. Same. Day. They have earned our full trust and confidence.
Posted on Google Google
robert dyer profile picture
robert dyer
60 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent installation and Exceptional maintenance of our Carrier heating and air conditioning system. We had the UV air scrubber installed recently and it works great! If our system fails for any reason, we have priority access to an HVAC technician. (I believe our system has never failed because we purchased an excellent system and we have regular maintenance.) Marlon Gonzalez is our recent maintenance technician. He is an example of the reliable and experienced people who are employed by Canoga Park MightyServe Heating & Air Conditioning. Marlon’s knowledge and expertise is professional in every sense of the word!!!!
Posted on Google Google
Gerri Katz profile picture
Gerri Katz
61 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brian was awesome. He was professional and knowledgeable. I appreciate the service.
Posted on Google Google
chris siekertzian profile picture
chris siekertzian
63 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Punctual,friendly honest service..Brian was great to have as a technician.
Posted on Google Google
Rick Ruffner profile picture
Rick Ruffner
64 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Everything perfect. Thanks.
Posted on Google Google
NANCY CLARK profile picture
NANCY CLARK
66 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very customer friendly, great technician, on time, takes pictures of work done and price is reasonable.
Posted on Google Google
Steve Blackman profile picture
Steve Blackman
66 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alex was professional, efficient and knowledgeable. Very friendly.
Posted on Google Google
Jeri Warwick profile picture
Jeri Warwick
67 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was great. He was very pleasant and completed the work quickly.
Posted on Google Google
Andjela Barbarash profile picture
Andjela Barbarash
68 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent response from the company, explanation of different options of service, immediate scheduling. Serviceman Shawn Flores arrived on time, performed all necessary checks, explained condition of the unit in details, was very professional and courteous
Posted on Google Google
Thomas Clemens profile picture
Thomas Clemens
68 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was very professional, knowledgeable and super friendly.
Posted on Google Google
Mike Mccrea profile picture
Mike Mccrea
71 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great attitude and knowledgeable tech. Always very helpful and informative. The AI on your phone system leaves a lot to be desired.
Posted on Google Google
M O profile picture
M O
71 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brian was extremely helpful and resolved the issue with my AC very fast durning this heat wave we are having.
Posted on Google Google
MJBurman profile picture
MJBurman
72 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I found Nitin to be very professional, thorough and I felt that he had my best interests at heart., It surveyed my entire unit and he came up with several ideas that will make the system perform better. I was very impressed by his passion for his job and he offered me great advice oh how to make my AC system perform as well as possible. Nitin is a very valuable asset for your company.
Posted on Google Google
Rose Mary Chen profile picture
Rose Mary Chen
73 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Job well done
Posted on Google Google
Rosalinda Larner profile picture
Rosalinda Larner
75 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent customer service from Rodrigo Garcia. He was kind, efficient and a professional who explained every detail to my satisfaction with photos. I request his service on my next maintenance appointment. Thank you.
Posted on Google Google
Rich Conner profile picture
Rich Conner
75 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Did a great job
Posted on Google Google
michele turner profile picture
michele turner
79 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brian fixed my AC quickly and was very friendly
Posted on Google Google
Robert Griffard profile picture
Robert Griffard
79 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brian was great, answered all my questions. Terrific work.
Posted on Google Google
Jessica Goldner profile picture
Jessica Goldner
80 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great service and very professional
Posted on Google Google
Jeffrey H profile picture
Jeffrey H
81 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very considerate and explained everything.
Posted on Google Google
anthony Caravella profile picture
anthony Caravella
82 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was amazing . This company is so good, their communication and team are all amazing. Shawn was freaking awesome. Highly recommend to anyone in the San Fernando valley.
Posted on Google Google
robbie Weinsziehr profile picture
robbie Weinsziehr
84 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very informative and very helpful to talk to talk to. He told us about some preventative things to do.
Posted on Google Google
T D profile picture
T D
87 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was professional, knowledgable and personable. He throughly inspected our equipment and clearly explained what he identified and our options to ensure everything continued to operate. We appreciate his time to answer our questions!
Posted on Google Google
Randy Berning profile picture
Randy Berning
88 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Replace a capacitor.
Posted on Google Google
Rob Levy profile picture
Rob Levy
89 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Good job guys repairing my AC
Posted on Google Google
Ralph Kober profile picture
Ralph Kober
89 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brian arrived early. He explained everything thoroughly. Diagnosed the problem. Fixed the problem and had my AC working in less than two hours.
Posted on Google Google
Steven Sego profile picture
Steven Sego
92 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was knowledgeable, polite, and very proficient. I appreciated the service that he did very much. Give him a raise!
Posted on Google Google
Marigrace Gleason profile picture
Marigrace Gleason
93 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We appreciate Rigo's skill level, communicating everything with us clearly Warm and easy to talk to. Trustworthy.
Posted on Google Google
Jay Weinstein profile picture
Jay Weinstein
94 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn was terrific. He showed up on time, was courteous, took the time to explain the problems, was extremely knowledgeable, and seviced my air conditioner!
Posted on Google Google
Lisa Connors profile picture
Lisa Connors
95 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Shawn, the HVAC repairman is Fantastic!! Was not familiar with Mighty Serv until yesterday when I met him while he was doing the Inspection for a home I'm purchasing. He was so knowledgeable, professional and comprehensive, so I actually scheduled service for my current home today. He just left and once again, great job! Thanks so much I will absolutely use your service in the future!
Posted on Google Google
Kathleen Bussin profile picture
Kathleen Bussin
95 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Henry was knowledgeable, listened to understand our needs and provided.a solution to meet those needs.
Posted on Google Google
Larry profile picture
Larry
96 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent service tech
Posted on Google Google
jonese36 profile picture
jonese36
98 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had a very positive experience with the technician! Which i always have since I started having them come out! I have recommended them to anyone who asks me where do I get my A/C serviced at!
Posted on Google Google
emily jester profile picture
emily jester
101 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Nathan was very professional and knowledgeable, he explained in detail what was wrong. He advised me what steps needed to be taken to repair the AC unit. Thank you Nathan for taking the time to answer all my questions.
Posted on Google Google
Sab Sikder profile picture
Sab Sikder
102 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing people and work! Installed new HVAC system and the everyone on the team (Ulysses, Daniel, managers, the crew, Felipe) was wonderful. Very understanding and did everything they could to make sure we were happy. This is after getting 0 help from this company called RELIABLE ENERGY (UN-RELIABLE Energy should be there name).
Posted on Google Google
Mike Smith profile picture
Mike Smith
103 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Preventative maintenance is a good thing. Brian came out today & ran a comprehensive service on our AC unit and all is good. Courteous & professional service.
Posted on Google Google
Shirley Ford profile picture
Shirley Ford
106 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have used Mighty Serve for a year now. Today Shawn arrived on time and ready to go during the torrential rains this morning (2/16/26). Shawn took care of 2 Furnaces. One in the attic and one in the garage. Shawn asked me if I wanted to have the filters changed before going ahead without asking me. I liked that! Shawn showed me the filters which indeed needed replacement. Shawn was efficient, knowledgeable, polite and held a professional albeit friendly attitude. I would definitely recommend him as well as MightyServ Heating & Air Conditioning. .
Posted on Google Google
Leanne Montoya profile picture
Leanne Montoya
106 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
These guys are really good and they have amazing customer service. They are always on time, they confirm the day before call you when they get there and the techs are always very respectful.
Posted on Google Google
Martina Duque-Laza profile picture
Martina Duque-Laza
106 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
He is very respectful and helpful. Work well done!
Posted on Google Google
tom clark profile picture
tom clark
107 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
It’s been a pleasure to be a customer of MightyServ from the moment I asked for a quote to replace my aging Heating & Air system back in August 2023 to todays Maintenance & inspection service. I consider this company and all its employees to be of the highest caliber providing quality services. I give them a 5 ⭐️ recommendation
Posted on Google Google
trudy sincock profile picture
trudy sincock
107 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brian Barrera from MightyServ came out right away when I called because my air conditioning was not working. He was very diligent and carefully inspected the available power, the thermostat and the A/C unit itself which was on the roof of the condominium building. He explained his findings and communicated his recommendations. After his made the required repairs to get the air conditioning working again, he evaluated the system to see that it was working well. I would definitely use MightyServ again. I think that Brian was very competent and responsible.
Posted on Google Google
Madeline Taylor profile picture
Madeline Taylor
108 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent company; professional, responsive, quality workmanship.
Posted on Google Google
Dora A profile picture
Dora A
109 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had this company doing some work on my A/C unit in the passed and I was very pleased. Honest, professional, and the prices very competitive. Of course when I got another problem with my older unit I called them. Alexander Castillo came as scheduled, was very honest and informative. He performed detail diagnosis, identified the problems, explained very clearly and gave me options. I would definitely recommend the company and will call them in the future for the service.
Posted on Google Google
Jeanna Nash profile picture
Jeanna Nash
109 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Rodrigo Garcia just serviced my dual heating and A/C units for the summer. He was very polite, friendly, professional and knowledgeable. He was very considerate of my home. MightServ is fortunate to have him on their team. I have my units serviced summer and winter. I hope they send “Rigo” for my next service. I have had MightServ service my home for 30 years and I have never been disappointed. 5 years ago MightServ installed Dual A/C, Heating, HVAC ducts and vents. I love the job they did. They were clean, fast and so accommodating. I highly recommend MightServ!
Posted on Google Google
Cheryl Nessel profile picture
Cheryl Nessel
110 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very positive
Posted on Google Google
Randy Hess profile picture
Randy Hess
110 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
On time, completed all requested work and showed proof of completion. Courteous.
Posted on Google Google
Niki Alexander profile picture
Niki Alexander
111 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Always excellent service technicians and very responsive and helpful staff!
Posted on Google Google
Sheree Jones-Pistol profile picture
Sheree Jones-Pistol
111 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jose knows my HVAC system very well. He arrived on time, went right to work, checking all systems, went on the roof to check the unit, changed my filter, and flushed my Aquaguard System to ensure my unit stays on all winter. I am very appreciative! Fantastic job and I continue being a customer of MIGHTYSERV, formerly Canoga Park Heating & Air Conditioning for more than 38 years!
Posted on Google Google
Steffanee Leaming profile picture
Steffanee Leaming
113 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Technician Jeremiah M. came out to service our 4 AC units, replacing the capacitors in each unit. He was on time, very polite, professional and knowledgeable. He is very hard-working and diligent in accomplishing his task. He took before and after photos for our records and left our home as he found it. Jeremiah M. is an excellent representative for MightyServ and I highly recommend not only MightyServ to the public, but I recommend Jeremiah M. as an excellent technician.
Posted on Google Google
edmundo Callejas profile picture
edmundo Callejas
115 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent service. Rigo is a great guy with excellent manners and I’m impressed with his ability to show his knowledge on the matter. Please for my future service I will like to see if he can be here. Thanks and keep up the good work.
Posted on Google Google
Phil Elins profile picture
Phil Elins
117 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
always impressed with the high quality service provided by Mighty Serv!
Posted on Google Google
Warren Herst profile picture
Warren Herst
120 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
He was very pleasant
Posted on Google Google
Giancarlo Laguercia profile picture
Giancarlo Laguercia
120 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Brian was thorough and courteous. Did a good job explaining what he was doing Five stars!
Posted on Google Google
Cheryl Reth profile picture
Cheryl Reth
121 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
My service was fabulous. Marlon and Juan were absolutely wonderful and did a very thorough job. They made me feel extremely comfortable and informed me of where they were going and what would be done. After checking the thermostat inside and changing our filter, they proceeded to do maintenance on the outside unit. Our unit is on the roof, and they were fully prepared to get up there. I had a stroke 2 years ago and am not entirely mobile, I do all right around the house, it is probably harder for me than anyone visiting. Marlon called my husband to say they could do the service without disrupting my day. My husband said it was just fine to knock on the door, which it was, and they were only here for about an hour. Their level of professionalism and the time they took to explain everything to me, and show me photos of their work was outstanding. Highly recommend!
Posted on Google Google
Joan Sheppard profile picture
Joan Sheppard
121 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jose is an excellent technician! He came out right away and quickly resolved the problem.
Posted on Google Google
Ray Moszkowicz profile picture
Ray Moszkowicz
122 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jeremiah M. was polite, attentive, checked everything and answered all my questions.
Posted on Google Google
Pam Tilikete profile picture
Pam Tilikete
123 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
June 2, 2026 - Jeremiah M arrived when they said he would. So courteous. Went right to work. He changed the filter in the attic and did the regular maintenance work and also checked the condenser outside (our last visit we were told they don’t do that anymore). He said we’re ready for this summer. Everything was quick and easy. A great visit! Thank you. January 15, 2026, Jose Martinez was nice and was in and out relatively quickly. I’m not a fan of the new appointments. They give you a date but no time and someone will update you throughout the day. I’d rather know what time to expect the technicians arrival. Also, apparently, they don’t check-out the AC unit anymore during the appointment unless you request it. This visit was 6 month HVAC maintenance, on the furnace. I feel like Mighty Serve is taking away from the small business attention we loved with Canoga Park Heating and Air. Aug 29, 2025, Brian Barrera was wonderful! Right on time and such a warm and friendly person. He replaced our filter and cleaned and checked the main unit. He also gave us some money saving tips which we really appreciate. Such an easy appointment. I hope he’ll come back again. We are SO HAPPY with the service we receive from Mighty Serve. Thank you. Feb 2025, Collin “Miklos” Rogers came for our cleaning and maintenance. Very nice and friendly. Took care of everything for us. As always, we were very happy. Thanks •May 26, 2022 - Nathan was here for our 6 month HVAC check up and new filter. He arrived on time and was very friendly. He offered 2 new “add-ons” that sounded like great ideas but we’re very costly and not something we could purchase at this time. I wish the company had alerted us to these options in advance so we could save for them. One was some sort of filter to help with allergies, an air scrubber, (around $1300!!!) and a condenser surge protector for the unit in case of a power outage (around $300). That’s a considerable amount. It will have to wait for now. Oh, and he reset our thermostat. We prefer it to heat at 69 degrees and cool at 77 degrees, so I had to reset his reset (heat at 70 and cool at 73) (I just read my last review and it looks like the surge thing was supposedly added the last time we had service. Hmm, I wonder why it was offered again?) Nathan did a good job. Thanks. •Aug 11, 2021 capacitor died 😢 (replaced it in 2018) Our superhero, Jose Garcia to the rescue! He replaced the capacitor and added something to prevent surges from power outages (we have them when it gets hot) that can drain the capacitor or ruin the compressor. Feeling the cool air again! Nice! So glad he was able to come out so quickly. Thanks! •May 5th, 2021 Jose Rivera is GREAT! Such a nice guy! He was on time and so courteous and Covid safe. He came in, accessed the filter and lines and main unit. He gave us a complete run-down on everything and replaced the filter and cleaned up and set us up for a payment schedule and was done in about 30 minutes. Such a pleasure to have him here today. •9/25/20 Kevin Castro came today to search for the smell we keep smelling coming from the AC. He did a thorough inspection and did not locate any problem. He was on time, with a mask and so nice. He told us about another service that can be done to eliminate contaminates in the air and we will be looking into it and may have them come back to set this up for us. We were really happy with our service, again, today. •Allan just came for another filter replacement and unit check. Everything went well. He was in and out in no time and wore a mask the whole time. Always a good experience. Thank you! Last time: Allan was just here to replace our AC filter and do a check up on our unit. He was on time and thorough in checking everything out. Gave us some great info as well. Great experience! Thank you.
Posted on Google Google
Jamie Venable profile picture
Jamie Venable
123 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Knowledgeable. Polite. Helpful.
Posted on Google Google
Kurt Young profile picture
Kurt Young
123 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jose was wonderful . He diagnosed the problem very fast and replaced the failed sensor . I used to be in a position to hire and fire …I would have given him a raise .Excellent outfit , reasonable price ,I will use again !

Serving Greater Los Angeles, CA

From our home base in Canoga Park to Encino, Calabasas, and the wider San Fernando Valley and beyond, MightyServ is there for you. We’re available for same-day services and fast scheduling throughout these neighborhoods:

  • Bel Air
  • Beverly Hills
  • Burbank
  • Calabasas
  • Canoga Park
  • Canyon Country
  • Chatsworth
  • Conejo Valley
  • Encino
  • Granada Hills
  • Moorpark
  • Newhall
  • Northridge
  • Pacific Palisades
  • Reseda
  • Santa Monica
  • Sherman Oaks
  • Simi Valley
  • Studio City
  • Tarzana
  • Thousand Oaks
  • Valencia
  • Van Nuys
  • West Hills
  • West Hollywood
  • Westlake Village
  • West Los Angeles
  • Woodland Hills

Schedule Your Duct Sealing or Repair Today!

Frequently Asked Questions

What are air duct sealing services, and do I need them?

Duct sealing services detect and repair leaks, gaps, and cracks in your ductwork using methods like mastic sealant or flexible tape. You might need duct sealing if you have high energy bills in the summer and winter, experience uneven temperatures from room to room, or have ducts located in an uninsulated attic or crawl space.

What are the benefits of duct sealing for my home?

The main benefit of duct sealing is a more comfortable, energy-efficient home. As a result, you may also see a decrease in your energy bills.

Will a new furnace lower my energy bills?

In many cases, yes. Modern high-efficiency furnaces use less energy to deliver consistent heat, helping reduce monthly utility costs while improving overall comfort.

What is HVAC duct insulation and why does it matter?

HVAC duct insulation involves wrapping air-handling pipes with foam or fiberglass insulation. It prevents heat transfer from the cool, conditioned air inside the pipes to the unconditioned air outside. The result is increased energy efficiency and energy cost savings, along with a lower chance of moisture buildup and mold growth.

How do I know if my duct insulation needs to be replaced?

If you notice uneven temperatures across rooms, higher energy bills, or signs such as tears, sagging, mold, moisture, or pest damage in your ducts, it’s time for a replacement. If your system is over 10-15 years old, it’s likely also time for a replacement, as the insulation may have lost its effectiveness.

Which areas of the San Fernando Valley do you serve?

We serve the greater West Los Angeles, CA area, including San Fernando Valley communities such as Burbank, Encino, and Van Nuys. We’ve been proudly locally owned and family operated in Canoga Park since 1963, so we know Valley homes inside and out.

How does ductwork repair improve indoor air quality?

Ductwork repair seals leaks and prevents the circulation of pollutants like dust, mold, and allergens. The result is consistent, fresh air and a lower risk of mold growth due to humidity buildup. It’s healthier and more pleasant to breathe.

Can leaky or uninsulated ducts affect my heating and cooling system’s performance?

Yes. Leaky ducts are less efficient because they allow air to escape, causing your heating and air conditioning system to work even harder to maintain consistent temperatures. Over time, this can strain your equipment, lead to early failure, and drive up your utility bills.

How do I know if my HVAC system is wasting energy due to duct problems?

If you’re experiencing unexpectedly high utility bills, uneven temperatures between rooms, weak airflow, whistling/rattling sounds near vents, a constantly running system, or excessive dust, the culprit may be your ducts. To check, look for physical signs of damage on your visible ducts and place your hand over vents to check airflow strength in each room. We also recommend checking for insulation material stuck to your air filter, which can indicate a serious leak on the return side.