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Find Thermostat installers and replacers in Los Angeles

Just Chill AC & Heating

5.00(
5
)
Approved Pro

Just Chill AC & Heating

5.00(
5
)
Approved Pro
Free onsite estimate

Just Chill AC & Heating is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Chris did an excellent job repairing my heating system. He was extremely thorough, punctual, and kept everything clean throughout the process. I was very pleased with the service and would highly recommend him."

Michael L on November 2025

Just Chill AC & Heating is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"Chris did an excellent job repairing my heating system. He was extremely thorough, punctual, and kept everything clean throughout the process. I was very pleased with the service and would highly recommend him."

Michael L on November 2025


Avatar for Mr. Handyman serving West Los Angeles

Mr. Handyman serving West Los Angeles

4.49(
269
)
Approved Pro

Mr. Handyman serving West Los Angeles

4.49(
269
)
Approved Pro
Customers say: Quality work
233 local quotes requested
25 years of experience

Mr. Handyman provides professional, safe, reliable handyman service for your entire "To Do" list is just one call away. That's why local residents choose our professional handymen, who specialize in ALL major and minor home repairs over an independent handyman. Mr Handyman technicians are insured, background checked and full-time employees. No subs. Our technicians have a minimum of 15 years of experience in the trades. We have a perfect record with the California State License Board. Award winning.

"Paul walked me through what and how project was done. He showed me how he improved attaching the bookshelves over my way."

Ron T on September 2020

Mr. Handyman provides professional, safe, reliable handyman service for your entire "To Do" list is just one call away. That's why local residents choose our professional handymen, who specialize in ALL major and minor home repairs over an independent handyman. Mr Handyman technicians are insured, background checked and full-time employees. No subs. Our technicians have a minimum of 15 years of experience in the trades. We have a perfect record with the California State License Board. Award winning.

"Paul walked me through what and how project was done. He showed me how he improved attaching the bookshelves over my way."

Ron T on September 2020


Avatar for Brody Pennell Heating & Air Conditioning

Brody Pennell Heating & Air Conditioning

4.33(
6
)
Approved Pro

Brody Pennell Heating & Air Conditioning

4.33(
6
)
Approved Pro
76 local quotes requested
80 years of experience

In 1999, Pennell Air Conditioning and Brody Heating & Air Conditioning, both in West Los Angeles, merged and became Brody Pennell. Jack Pennell began serving Los Angeles area homeowners in 1945. Today, we carry on that great legacy of outstanding customer service as we continue to serve the next generation of our clientele. Our rapid response fleet is ready to serve you 24/7, when you need us the most. Our friendly technicians are knowledgeable and helpful, and we can fix most any problem you have. We look forward to adding you to the Brody Pennell family.

"great job "

Andrew F on November 2025

In 1999, Pennell Air Conditioning and Brody Heating & Air Conditioning, both in West Los Angeles, merged and became Brody Pennell. Jack Pennell began serving Los Angeles area homeowners in 1945. Today, we carry on that great legacy of outstanding customer service as we continue to serve the next generation of our clientele. Our rapid response fleet is ready to serve you 24/7, when you need us the most. Our friendly technicians are knowledgeable and helpful, and we can fix most any problem you have. We look forward to adding you to the Brody Pennell family.

"great job "

Andrew F on November 2025


Avatar for RHINEHART HEATING AND AIR LLC

RHINEHART HEATING AND AIR LLC

5.00(
2
)
Approved Pro

RHINEHART HEATING AND AIR LLC

5.00(
2
)
Approved Pro
25 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"George did an Excellent Job and the customer service was great. I have used Rhinehart Heating and Air and they always do great work and have recommended them to my friends and Family. "

Sam G on November 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"George did an Excellent Job and the customer service was great. I have used Rhinehart Heating and Air and they always do great work and have recommended them to my friends and Family. "

Sam G on November 2025


Avatar for RELY HVAC LLC

RELY HVAC LLC

5.00(
3
)
Approved Pro

RELY HVAC LLC

5.00(
3
)
Approved Pro
Free onsite estimate
Emergency services offered

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. You will find us to be competitively priced with close attention to the details. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We look forward to building a lasting relationship and guarantee your satisfaction!

"Brian has been fantastic for us. Every time we needed his services, and it?s always an emergency, he has been responsive stopping by right away or even on weekend. He is super knowledgeable, extremely clean leaving the place immaculate after completing his work and his pricing is very fair. Brian is not only competent, he is also a nice person. We really wish success to Brian, he deserves it."

Phil O on November 2025

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. You will find us to be competitively priced with close attention to the details. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We look forward to building a lasting relationship and guarantee your satisfaction!

"Brian has been fantastic for us. Every time we needed his services, and it?s always an emergency, he has been responsive stopping by right away or even on weekend. He is super knowledgeable, extremely clean leaving the place immaculate after completing his work and his pricing is very fair. Brian is not only competent, he is also a nice person. We really wish success to Brian, he deserves it."

Phil O on November 2025


Avatar for Drain Right Services, Inc.

Drain Right Services, Inc.

4.38(
50
)
Approved Pro

Drain Right Services, Inc.

4.38(
50
)
Approved Pro
Customers say: Quick response
12 local quotes requested
21 years of experience

We are a full service plumbing company offering residential plumbing services in LA and Orange County. Our expert technicians offer a wide range of services for new installations and complete plumbing repair. Our services include drain cleaning, sewer repair, trenchless sewer, hot water heaters, gas lines, and water filtration systems. We guarantee fast, reliable, affordable plumbing services with up front flat rate pricing, so there are no surprises. Please browse our website to learn more about our company and our plumbing, drain cleaning, sewer repair, and other services. Give Drain Right Services a call today at (800) 208-8875 for more information or to request service at your home in LA or Orange County.

"Terrible people. DO NOT USE. I had my water main line burst at my house and the folks at drain right where in the neighborhood, identified a problem, and knocked on my door. My pregnant wife was home at the time of pipe bust, but was initially unaware of the issue as water was still making it to our home. At first we thought this was a godsend, nice workers who identified an issue wanted to help, how lucky are we. They kindly shut off the water to the house and asked my pregnant wife, who was freaking out by the amount of water shooting out from burst pipe, to sign an authorization form to do work. She was so grateful someone was there to help she happily signed the slip. I was grateful someone was able to help my wife while I was at work. The problem started when I noted what she had signed.. They charged me $341 for a visual inspection. They identified the problem as a tree root that struck a pipe (which was not what in fact happened) and wrote 2 appraisals for solving the issue. The fist solution was replacing the galvanized pipe with another galvanized pipe for $7500. The second was to re reroute the sewer line to our house with copper piping, estimated at a whopping $11,300. I tried to call manager the evening of the pipe bust schedule an appointment as the water was shut off to my house. No response. In fact it took the manager a week to return my phone call to schedule the job, which I had bid out and already resolved. I was recommended a plumber to get a second opinion, and he came promptly and re-routed the sewer line with coper piping for less than half what Drain Right was asking for the job. I have been trying to dispute this invoice with Drain Right for months because its my belief they initially took advantage of my pregnant wife and there terrible service, and instead of returning my phone calls they sent my bill to a debt collection service. What horrible service by a terrible business."

David s on January 2023

We are a full service plumbing company offering residential plumbing services in LA and Orange County. Our expert technicians offer a wide range of services for new installations and complete plumbing repair. Our services include drain cleaning, sewer repair, trenchless sewer, hot water heaters, gas lines, and water filtration systems. We guarantee fast, reliable, affordable plumbing services with up front flat rate pricing, so there are no surprises. Please browse our website to learn more about our company and our plumbing, drain cleaning, sewer repair, and other services. Give Drain Right Services a call today at (800) 208-8875 for more information or to request service at your home in LA or Orange County.

"Terrible people. DO NOT USE. I had my water main line burst at my house and the folks at drain right where in the neighborhood, identified a problem, and knocked on my door. My pregnant wife was home at the time of pipe bust, but was initially unaware of the issue as water was still making it to our home. At first we thought this was a godsend, nice workers who identified an issue wanted to help, how lucky are we. They kindly shut off the water to the house and asked my pregnant wife, who was freaking out by the amount of water shooting out from burst pipe, to sign an authorization form to do work. She was so grateful someone was there to help she happily signed the slip. I was grateful someone was able to help my wife while I was at work. The problem started when I noted what she had signed.. They charged me $341 for a visual inspection. They identified the problem as a tree root that struck a pipe (which was not what in fact happened) and wrote 2 appraisals for solving the issue. The fist solution was replacing the galvanized pipe with another galvanized pipe for $7500. The second was to re reroute the sewer line to our house with copper piping, estimated at a whopping $11,300. I tried to call manager the evening of the pipe bust schedule an appointment as the water was shut off to my house. No response. In fact it took the manager a week to return my phone call to schedule the job, which I had bid out and already resolved. I was recommended a plumber to get a second opinion, and he came promptly and re-routed the sewer line with coper piping for less than half what Drain Right was asking for the job. I have been trying to dispute this invoice with Drain Right for months because its my belief they initially took advantage of my pregnant wife and there terrible service, and instead of returning my phone calls they sent my bill to a debt collection service. What horrible service by a terrible business."

David s on January 2023


Avatar for Just Be Cool Supply, LLC

Just Be Cool Supply, LLC

4.96(
28
)
Approved Pro

Just Be Cool Supply, LLC

4.96(
28
)
Approved Pro
Customers say: Quick response
16 local quotes requested
3 years of experience

is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"I called them to replace thermostat they showed up on time and showed me how to my wifi thermostat , very affordable , reliable and honest"

Anthony E on October 2025

is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"I called them to replace thermostat they showed up on time and showed me how to my wifi thermostat , very affordable , reliable and honest"

Anthony E on October 2025


"Straight forward"

Matthew K on August 2024

We are problem solvers. With over twenty two years of experience there isn't much we haven't seen. From the smallest task to the largest we will perform our job with professionalism and in a timely manner. We guarantee our work 100%. .

"Straight forward"

Matthew K on August 2024


Avatar for Progressive Air, Inc.

Progressive Air, Inc.

5.00(
7
)
Approved Pro

Progressive Air, Inc.

5.00(
7
)
Approved Pro
15 years of experience
Emergency services offered

At Progressive Air Inc we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I called this company for my AC and from phone call to solving my ac problem was excellent. Greg spoke with me on phone and what he told me by phone he kept every word and did his job 100%. Thanks Greg jan I advise everyone to use your service."

Gor S on November 2025

At Progressive Air Inc we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I called this company for my AC and from phone call to solving my ac problem was excellent. Greg spoke with me on phone and what he told me by phone he kept every word and did his job 100%. Thanks Greg jan I advise everyone to use your service."

Gor S on November 2025


Avatar for QNZ Mechanical

QNZ Mechanical

5.00(
5
)
Approved Pro

QNZ Mechanical

5.00(
5
)
Approved Pro
25 years of experience
Free onsite estimate

At QNZ Mechanical, we provide expert heating, cooling, and electrical solutions for both residential and commercial clients. We understand that comfort, safety, and efficiency are essential which is why our team is dedicated to delivering reliable, high-quality service for every project. From central AC and mini-split installations to advanced zoning systems, air purification, and emergency repairs, we handle it all. We also offer routine maintenance and flexible financing options, ensuring your systems run smoothly year round. With QNZ Mechanical, you can trust our experience, professionalism, and commitment to keeping your home or business comfortable and safe.

"Mike was very knowledgeable and his team was fast. I had my entire ac system replaced the following day with no issues. If you need an AC guy Mike with Qnz is the guy to call."

roberto c on November 2025

At QNZ Mechanical, we provide expert heating, cooling, and electrical solutions for both residential and commercial clients. We understand that comfort, safety, and efficiency are essential which is why our team is dedicated to delivering reliable, high-quality service for every project. From central AC and mini-split installations to advanced zoning systems, air purification, and emergency repairs, we handle it all. We also offer routine maintenance and flexible financing options, ensuring your systems run smoothly year round. With QNZ Mechanical, you can trust our experience, professionalism, and commitment to keeping your home or business comfortable and safe.

"Mike was very knowledgeable and his team was fast. I had my entire ac system replaced the following day with no issues. If you need an AC guy Mike with Qnz is the guy to call."

roberto c on November 2025

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FAQs for thermostat installation and replacement projects in Los Angeles, CA

Smart thermostats may be worth it for many homeowners. They come with various features, including voice control and smartphone apps. Vacation mode can help lower energy usage when you’re out of town for an extended period. Alert warnings let you know about major spikes or drops in temperature. Smartphone apps can track energy usage, and smart thermostats can learn your routine over time to adjust your temperature and reduce wasted energy consumption automatically.

You typically do not need more than one smart thermostat. While it’s common to see multiple mechanical thermostats throughout a large home, multiple smart thermostats may try to override each other. This can lead to problems with the HVAC system. Ensure the unit you buy has the option for dual- or multi-zoned systems to avoid compatibility issues.

Installing a programmable or smart thermostat may save you $180 per year in utility costs. A big part of this comes from a smart thermostat’s ability to learn and adapt to your regular routines. With smartphone apps or web-based interfaces, you also have the option to control your thermostat when you’re not home.

The Los Angeles, CA homeowners’ guide to thermostat installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.