Thermostat Installation, Replacement & Repair in the wider San Fernando Valley

Trusted Thermostat Services by NATE-Certified Technicians

The thermostat is the connection point between you and your family’s comfort, and therefore an essential part of your heating and AC system. If it’s not working — or not working as well as it should — give MightyServ Heating and Air Conditioning a call. MightyServ provides thermostat installation, replacement, and repair throughout the greater San Fernando Valley, with NATE-certified technicians, same-day service, and a promise that we stand behind every job.

Why San Fernando Valley Homeowners Trust MightyServ Thermostat Services

If you’re like most homeowners, aside from the occasional dusting, you probably don’t give your home’s thermostat much thought.

But thermostats have come a long way in the last few years. They’re no longer simple on-off switches; they’re bona fide smart electronic devices full of features and functions. And no matter how sleek smart thermostats look, there’s a whole lot of programming behind them. It’s a lot for homeowners to learn!

That’s why MightyServ offers a full range of thermostat services. Whether your current unit is malfunctioning or you need help programming your new one, we bring years of expertise and our signature friendly, professional attitude. With our NATE-certified technicians, 4.9-star average Google rating, and same-day service, MightyServ has been trusted by Valley homeowners since 1963.

Thermostat Services We Provide

Whether you need a new thermostat installation or your old thermostat is giving you problems, MightyServ can help. Throughout the greater Los Angeles area, we’re there to help with expert heating and air conditioning services like these:

Thermostat Installation

If you’re building a new house or adding a thermostat to a house that hasn’t had one before, you’ll want to opt for a professional installation. Our experienced technicians will install the unit correctly and quickly, plus show you how to program it before they leave.

Thermostat Replacement

When you replace your heating and cooling system, it’s a good time to replace your thermostat. It’s also a smart choice if you’re interested in lower energy bills, remote access, and a connected home. Anytime is a good time to upgrade from an old thermostat to a new digital thermostat.

Thermostat Repair & Troubleshooting

If your thermostat is not responsive, making strange sounds, displaying icons you’ve never seen, or just acting erratically, we can help. Our thermostat experts at MightyServ will fix your thermostat and have your system operating normally again.

Signs You Need a New Thermostat

  • The thermostat is 10+ years old. Thermostat technology has advanced significantly in the last decade.
  • Temperature readings feel inaccurate. Your room shouldn’t feel hotter or colder than the set temperature.
  • The system is short-cycling or not responding to thermostat changes. If your system turns on and off too frequently, a clogged filter or oversized unit can be the culprit.
  • Display is blank or unreadable. At the end of its lifespan, the furnace’s screen can wear out.
  • High energy bills without explanation. Your old thermostat may be running inefficiently.
  • Moving to a smart home setup. Switching to a modern smart thermostat can be well worth the cost of replacement.

Thermostat Types: Which Is Right for Your Home?

Smart Thermostats

New, Wi-Fi-enabled smart thermostats are digital and can handle high-efficiency, multi-stage heating and cooling systems. Some also integrate your variable energy costs to adjust your home to preset temperatures, helping keep your energy bills low.

Some of the smartest thermostats can even integrate with ceiling fan controls and interface with your whole-home smart system. No need to interrupt family time — let your preferred smart assistant take care of it for you.

Programmable Digital Thermostats

If you’re not ready to fully dive into the connected home world, a programmable digital thermostat might be a good option. These devices allow you to set schedules for each day, weekdays, or weekends (5+2 for weekdays + weekends or 5+1+1 for weekdays + Saturday + Sunday set separately). The challenge with programs is that most people never set them up, or if they do, they constantly override their own settings. This means you’re not getting the advertised energy savings.

But if you do want to go with a digital thermostat, look for one with a backlit display. That way, you can see your temperature settings no matter how much light is in your hallway.

Contact/Manual Thermostats

Older contact thermostats rely on a tube of mercury to tip over whenever your home’s heating and AC need to switch on or off. So compared to the hundreds of functions built into smart thermostats, you just get one function in a contact thermostat: on or off.

And although simplicity may sound refreshing, there are many challenges with these old-style thermostats. First, they aren’t programmable, and they’re notoriously inaccurate. And they require manual adjustment to change the temperature, which means you could be using more energy and putting more wear on your HVAC than you really need to.

MightyStat: MightyServ’s Smart Thermostat

MightyStat is MightyServ’s proprietary smart thermostat solution. Unlike traditional thermostats, MightyStat learns your habits and automatically adjusts heating and cooling, reducing your energy bill by up to 20% according to our customers.

MightyStat smart thermostats offer a range of benefits, including:

Energy Savings and Efficiency

MightyStat learns your daily routines and adjusts heating and cooling automatically to avoid energy waste. It reduces temperature settings when you’re away or asleep and optimizes climate control based on your preferences. Many users see significant reductions in energy bills thanks to these intelligent adjustments and built-in energy-saving features.

Remote Access and Real-Time Control

With a MightyStat smart thermostat, you can control your home’s temperature from anywhere using a smartphone, tablet, or computer. Whether you’re at work, on vacation, or just in bed, you can easily adjust the settings to suit your needs. This level of control helps you maintain comfort while avoiding unnecessary heating or cooling when no one is home.

Seamless Smart Home Integration

MightyStat integrates with popular voice assistants like Amazon Alexa, Google Assistant, and Apple Siri, allowing you to control your system using simple voice commands. It also works with other smart home devices and systems, enabling full home automation. Features like geofencing can even detect when you leave or approach home, automatically adjusting the temperature for optimal comfort and efficiency.

Thermostat Installation Service: What to Expect

Compatibility Check

Your MightyServ technician will confirm that your new thermostat is compatible with your existing heating and cooling system, including wiring and system type.

Professional Installation

Unlike DIYers, our licensed, insured, NATE-certified technicians are highly trained to correctly wire, mount, and pair systems. This means avoiding common DIY mistakes, like not labeling wires properly.

Setup and Configuration

Proper setup includes programming schedules, connecting apps, and walking the homeowner through their options and how to navigate the system after we leave.

Testing

Before we leave, we’ll test to ensure the system responds correctly to the thermostat in both heating and cooling modes.

Why Choose MightyServ for Home Comfort Services

We use only quality equipment and stand behind our work with a 100% satisfaction guarantee. As a Carrier Factory Authorized Dealer, we bring trusted expertise and dependable service to every project.

  • Experienced with all thermostat types and brands
  • Carrier Factory Authorized Dealer and recipient of the 2025 Carrier President’s Award
  • NATE-certified technicians who install to code
  • Honest compatibility assessment before recommending an upgrade
  • NATE-certified, Carrier-trained technicians
  • 60+ years serving the San Fernando Valley and beyond

What Our Customers Are Saying

Posted on Google Google
Kevin Skogman profile picture
Kevin Skogman
0 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Outstanding service from start to finish! I called around 9 AM, and by 11 AM they had a technician at my house. By 11:30, the problem was already fixed! Mynor was professional, friendly, knowledgeable, and took the time to explain everything clearly. I was genuinely impressed by how fast and efficient the entire experience was. It’s refreshing to receive this level of customer service. Couldn’t have asked for a better experience. I’ll absolutely use MightyServ again and highly recommend them!
Posted on Google Google
Linda Segraves profile picture
Linda Segraves
1 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Outstanding rep for your company. Very professional, knowledgable and respectful
Posted on Google Google
Piper F profile picture
Piper F
3 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
After more than 15 years as loyal customers…starting when they were Canoga Park Heating & Air…we continue to receive top-notch service and excellent quality of work from MightyServ. Jeremiah was punctual, professional, friendly, and very knowledgeable. We highly recommend them!
Posted on Google Google
Joan Sheppard profile picture
Joan Sheppard
3 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alex is an excellent technician! He came out right away and quickly resolved the problem. He was friendly and extremely knowledgeable!!
Posted on Google Google
Larry Wilson profile picture
Larry Wilson
5 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent technician and staff.
Posted on Google Google
Eric Mak profile picture
Eric Mak
5 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Professional and quick
Posted on Google Google
Miriam Green profile picture
Miriam Green
8 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
9 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
12 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
15 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
15 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
17 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
22 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
22 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
22 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
25 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
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 and knowledgeable service
Posted on Google Google
Adriana Valenzuela profile picture
Adriana Valenzuela
27 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
28 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
29 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
30 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
31 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
31 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
32 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
33 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
33 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
37 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
38 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
38 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
39 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
42 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
43 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
43 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
44 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
46 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
46 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
47 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
49 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
52 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
52 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
59 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
59 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
59 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
60 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
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 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
61 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
66 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
67 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
67 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
68 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
70 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
71 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
73 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
73 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
74 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
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 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
75 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
78 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
78 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
79 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
80 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
82 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
82 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
86 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
86 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
87 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
88 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
89 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
91 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
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 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
95 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
96 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
96 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
99 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
100 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
101 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
102 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
102 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
103 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
105 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
108 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
109 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
110 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
113 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
113 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
113 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
114 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
114 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
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 company; professional, responsive, quality workmanship.
Posted on Google Google
Dora A profile picture
Dora A
116 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
116 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
117 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
117 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
118 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
118 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
120 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
122 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
124 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
127 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
127 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!

Heating and Cooling Services in Greater Los Angeles, CA

We serve the San Fernando Valley and beyond from our home in Canoga Park, where we’ve been based since 1963. If you don’t see your neighborhood listed below, just give us a call and we’ll do our best to help.

  • 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 Thermostat Installation or Repair Today!

Frequently Asked Questions

How do I know if my thermostat needs to be repaired or replaced?

If your thermostat is over 10 years old, having trouble keeping consistent temperatures as programmed, its display is broken, or your energy bills unexpectedly spike, it’s likely time for a replacement. If you’re experiencing a one-off problem with a newer thermostat, though, it’s worth trying to repair it.

How long do thermostat installation services take?

Thermostat installations typically take between 30 minutes and 1 hour. If you’re installing a smart thermostat, though, expect to spend a little more time with your technician setting up schedules and learning how to use the thermostat and its app.

Can a faulty thermostat affect my heating and cooling system?

Absolutely. The thermostat acts as the “command center” for your heating and air conditioning system, so if it’s faulty, it can lead to inefficiency, decreased comfort, higher energy costs, and even damage to your system.

What’s the difference between a programmable thermostat and a smart thermostat?

A programmable thermostat lets you set schedules, but it isn’t “smart” in the sense that it can self-adjust or connect with other smart devices. True smart thermostats can learn from your energy consumption to automatically adjust your schedules and keep your energy bills down. Smart thermostats can also be controlled from anywhere via apps and integration with virtual assistants like Alexa and Siri.

Do you repair all thermostat brands and models?

Yes, we do. MightyServ is a Carrier Factory Authorized Dealer, so we’re particularly trained and experienced in handling Carrier products, but we also service all other types of thermostats, like Nest, Ecobee, and Honeywell. Our NATE-certified technicians care about doing the job right, no matter the brand.

How do I schedule thermostat repair or replacement services?

Just give MightyServ a call or click the “Book a Service” button above! Our trucks are fully stocked with the most frequently used parts and tools, so we offer same-day service on many appointments. We’re there for your heating and cooling needs wherever you’re located in the greater San Fernando Valley!