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Thermostat installers and replacers in Irvine

Avatar for MSP Heating and Air, LLC
MSP Heating and Air, LLC
2932 Rubidoux Blvd, Ste B
4.93(
284
)
Approved Pro
MSP Heating and Air, LLC
2932 Rubidoux Blvd, Ste B
4.93(
284
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
146 local quotes requested

We at MSP HEATING AND AIR focus on quality HVAC services over quantity. We use our years of experience and expertise, to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed! Please call us today for an estimate. We look forward to working with you! we keep your privacy

"They did a great job installing my new thermostat."

Blossom G on March 2025

We at MSP HEATING AND AIR focus on quality HVAC services over quantity. We use our years of experience and expertise, to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed! Please call us today for an estimate. We look forward to working with you! we keep your privacy

"They did a great job installing my new thermostat."

Blossom G on March 2025


Avatar for True Home Heating and Air Conditioning
True Home Heating and Air Conditioning
4 Faraday
4.93(
30
)
Approved Pro
True Home Heating and Air Conditioning
4 Faraday
4.93(
30
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 local quotes requested

True Home Heating and Air Conditioning 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 customer’s interests and make their concerns the basis of our business. Please give us a call today!

"Very prompt service to a very urgent need. The professional that responded to our office was outstanding in every way."

VICTOR L on November 2023

True Home Heating and Air Conditioning 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 customer’s interests and make their concerns the basis of our business. Please give us a call today!

"Very prompt service to a very urgent need. The professional that responded to our office was outstanding in every way."

VICTOR L on November 2023


Avatar for SO CAL BOYS HEATING & AIR INC
SO CAL BOYS HEATING & AIR INC
13397 Harlow Ave
4.96(
27
)
Approved Pro
SO CAL BOYS HEATING & AIR INC
13397 Harlow Ave
4.96(
27
)
Approved Pro
Customers say: True professional
64 local quotes requested
3 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"So Cal Boys is very great company, they took my call on a busy week for them and were able to do my maintenance before the hot days get there. I highly recommend them, they’re very knowledgeable and attention to detail. "

eduardo l on May 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"So Cal Boys is very great company, they took my call on a busy week for them and were able to do my maintenance before the hot days get there. I highly recommend them, they’re very knowledgeable and attention to detail. "

eduardo l on May 2025


Avatar for Sean Patrick HVAC, Inc.
Sean Patrick HVAC, Inc.
13236 Flagstaff Drive
5.00(
8
)
Approved Pro
Sean Patrick HVAC, Inc.
13236 Flagstaff Drive
5.00(
8
)
Approved Pro
Customers say: Quick response
102 local quotes requested
5 years of experience

Welcome to Sean Patrick HVAC, Your Trusted HVAC Contractor Serving SOCAL, CA and Surrounding Areas. For over 10 years, we’ve provided exceptional HVAC repairs, HVAC replacement, air conditioning maintenance, furnace replacement, and indoor air quality services for residential and commercial customers. Our NATE-certified technicians have the experience and expertise to correctly diagnose and repair all makes and models of HVAC systems. We offer 24/7 emergency HVAC repair service, so you’re never left in the cold or heat. As your local HVAC contractor, we provide: HVAC Repairs – Get your AC, furnace, or heat pump running again quickly with our skilled repair technicians HVAC Replacement – We replace old, inefficient HVAC systems with new top brand models properly sized for your home/business Air Conditioning Maintenance – Preventative maintenance maximizes the lifespan of your AC system Furnace Replacement – We replace broken furnaces with energy efficient new models

"spoke to Laura on a monday had my AC installed on thursday the technicians were on time and very professional.Sean answered all my questions and gave me a estimate right away.its good to know there are still contractors that take pride in there work I highly recomend SPH. "

David O on May 2025

Welcome to Sean Patrick HVAC, Your Trusted HVAC Contractor Serving SOCAL, CA and Surrounding Areas. For over 10 years, we’ve provided exceptional HVAC repairs, HVAC replacement, air conditioning maintenance, furnace replacement, and indoor air quality services for residential and commercial customers. Our NATE-certified technicians have the experience and expertise to correctly diagnose and repair all makes and models of HVAC systems. We offer 24/7 emergency HVAC repair service, so you’re never left in the cold or heat. As your local HVAC contractor, we provide: HVAC Repairs – Get your AC, furnace, or heat pump running again quickly with our skilled repair technicians HVAC Replacement – We replace old, inefficient HVAC systems with new top brand models properly sized for your home/business Air Conditioning Maintenance – Preventative maintenance maximizes the lifespan of your AC system Furnace Replacement – We replace broken furnaces with energy efficient new models

"spoke to Laura on a monday had my AC installed on thursday the technicians were on time and very professional.Sean answered all my questions and gave me a estimate right away.its good to know there are still contractors that take pride in there work I highly recomend SPH. "

David O on May 2025


Avatar for ACE HOME HEATING & AIR CONDITIONING LLC
ACE HOME HEATING & AIR CONDITIONING LLC
5324 Mission Blvd Unit 3
4.56(
9
)
Approved Pro
ACE HOME HEATING & AIR CONDITIONING LLC
5324 Mission Blvd Unit 3
4.56(
9
)
Approved Pro
Customers say: Quick response
96 local quotes requested
1 years of experience

Thank you for visiting ACE HOME HEATING & AIR CONDITIONING LLC. We are your locally owned and operated HVAC specialists based in Riverside, CA. We service residential clients throughout the Riverside-San Bernardino area. Contact us now for your free estimate--we look forward to working with you soon!

"When the associate came I explain what was going on with my AC evaporator coil, he checked it out and gave me two different options that we could to get the system working, and the cost. So I was comfortable choosing what was best for me. "

Jerome E on February 2025

Thank you for visiting ACE HOME HEATING & AIR CONDITIONING LLC. We are your locally owned and operated HVAC specialists based in Riverside, CA. We service residential clients throughout the Riverside-San Bernardino area. Contact us now for your free estimate--we look forward to working with you soon!

"When the associate came I explain what was going on with my AC evaporator coil, he checked it out and gave me two different options that we could to get the system working, and the cost. So I was comfortable choosing what was best for me. "

Jerome E on February 2025


Gonzalez Interior & Exterior Painting
Based In
5.00(
2
)
Approved Pro
Gonzalez Interior & Exterior Painting
Based In
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
724 local quotes requested

Hello! My name is Oswaldo Gonzalez, I have been in the home remodeling (Painting & Drywall Patching) industry for almost 25 years. Here at Gonzalez Painting we give the best customer service as well as the best prices. We will work anywhere, from the San Gabriel valley all the way to the OC & Inland Empire. Call or click for your quote today!

"I contacted Gonzalez painting to paint the outside of my house & Trim of my house and it came out gorgeous! I would definitely hire them again very friendly people :)"

Carmen l on February 2024

Hello! My name is Oswaldo Gonzalez, I have been in the home remodeling (Painting & Drywall Patching) industry for almost 25 years. Here at Gonzalez Painting we give the best customer service as well as the best prices. We will work anywhere, from the San Gabriel valley all the way to the OC & Inland Empire. Call or click for your quote today!

"I contacted Gonzalez painting to paint the outside of my house & Trim of my house and it came out gorgeous! I would definitely hire them again very friendly people :)"

Carmen l on February 2024


Avatar for Lenco Heating & Air Conditioning Inc.
Lenco Heating & Air Conditioning Inc.
11606 Exposition Blvd
4.62(
34
)
Approved Pro
Lenco Heating & Air Conditioning Inc.
11606 Exposition Blvd
4.62(
34
)
Approved Pro
Customers say: Quality work
390 local quotes requested
54 years of experience

Other Los Angeles area HVAC companies may talk about their goals of 100% customer satisfaction, but Lenco Air Conditioning Service Inc. makes it a part of our every day practice. Lenco Air Conditioning Service Inc. offers Los Angeles customers the best air conditioning, heating, cooling and indoor air quality services around - you can count on that! Our experienced HVAC technicians and service reps understand that each customer situation is unique. Call today for the area's best! Some cooling systems are older models, and upgrading to new equipment will offer substantial savings on energy bills. If you have an air conditioner that is older just ask us for a FREE Estimate, and we will come out to inspect your setup and let you know what options would be perfect for your specific needs!

"Technican as very professional. Scheduling the appointment was easy and fast."

Robert B on July 2020

Other Los Angeles area HVAC companies may talk about their goals of 100% customer satisfaction, but Lenco Air Conditioning Service Inc. makes it a part of our every day practice. Lenco Air Conditioning Service Inc. offers Los Angeles customers the best air conditioning, heating, cooling and indoor air quality services around - you can count on that! Our experienced HVAC technicians and service reps understand that each customer situation is unique. Call today for the area's best! Some cooling systems are older models, and upgrading to new equipment will offer substantial savings on energy bills. If you have an air conditioner that is older just ask us for a FREE Estimate, and we will come out to inspect your setup and let you know what options would be perfect for your specific needs!

"Technican as very professional. Scheduling the appointment was easy and fast."

Robert B on July 2020


Avatar for On Time Home Services
On Time Home Services
43397 Business Park Dr
4.94(
18
)
Approved Pro
On Time Home Services
43397 Business Park Dr
4.94(
18
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
333 local quotes requested

On Time Home Services is an HVAC company that has been putting our customers first since opening in 2005. We offer expert heating, cooling, and indoor air quality services to homes throughout Temecula and surrounding areas. To make your repair, replacement, installation, or maintenance service as convenient as possible we provide flexible scheduling, same-day appointments, and emergency after-hours and weekend repairs. With free, in-person estimates, friendly and honest customer service, and workmanship that is second to none, you can trust On Time Home Services to be your partner in comfort. Our licensed and insured technicians will go above and beyond to ensure our customers’ complete satisfaction.

"Fantastic service. Ryan and Carlos were very knowledgeable and courteous. Even had same day service. Would recommend to all family and friends! Called on when to expect them so I wasn’t waiting around."

Debbie S on April 2024

On Time Home Services is an HVAC company that has been putting our customers first since opening in 2005. We offer expert heating, cooling, and indoor air quality services to homes throughout Temecula and surrounding areas. To make your repair, replacement, installation, or maintenance service as convenient as possible we provide flexible scheduling, same-day appointments, and emergency after-hours and weekend repairs. With free, in-person estimates, friendly and honest customer service, and workmanship that is second to none, you can trust On Time Home Services to be your partner in comfort. Our licensed and insured technicians will go above and beyond to ensure our customers’ complete satisfaction.

"Fantastic service. Ryan and Carlos were very knowledgeable and courteous. Even had same day service. Would recommend to all family and friends! Called on when to expect them so I wasn’t waiting around."

Debbie S on April 2024


Avatar for Byron's Handymen Service
Byron's Handymen Service
5.00(
2
)
Approved Pro
Byron's Handymen Service
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2158 local quotes requested

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"It went perfect, He came to my house to look at what I needed to get done which was two front doors refinished . They did an excellent job, very friendly guys and I will hire them again for any other work that I need to get done in my house."

Jose M on November 2024

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"It went perfect, He came to my house to look at what I needed to get done which was two front doors refinished . They did an excellent job, very friendly guys and I will hire them again for any other work that I need to get done in my house."

Jose M on November 2024


Avatar for Personal Plumbing, Heating & Cooling
Personal Plumbing, Heating & Cooling
110 Copperwood Way
4.48(
341
)
Approved Pro
Personal Plumbing, Heating & Cooling
110 Copperwood Way
4.48(
341
)
Approved Pro
Customers say: Super punctual
1614 local quotes requested
25 years of experience

We are your local plumbing and hvac experts. We specialize in service and repair while offering a unique approach to your individual plumbing needs. We offer a free in home inspection and registration of all your plumbing fixtures as well as hvac systems to ensure a good working condition. We provide a no hassle repair for future services of these products. Call to set up your free in home consultation today!

"Your guys CJ & Andrew were awesome! They did such a nice clean looking job! Super professional and very informative. They walked me through setting up the app for the whole house water shut off valve they installed and now I get a reduced rate on my homeowners insurance. They also found that my water pressure reducing valve had failed and replaced that at the same time. Couldn’t be more happy with the job they did."

Erick K on April 2024

We are your local plumbing and hvac experts. We specialize in service and repair while offering a unique approach to your individual plumbing needs. We offer a free in home inspection and registration of all your plumbing fixtures as well as hvac systems to ensure a good working condition. We provide a no hassle repair for future services of these products. Call to set up your free in home consultation today!

"Your guys CJ & Andrew were awesome! They did such a nice clean looking job! Super professional and very informative. They walked me through setting up the app for the whole house water shut off valve they installed and now I get a reduced rate on my homeowners insurance. They also found that my water pressure reducing valve had failed and replaced that at the same time. Couldn’t be more happy with the job they did."

Erick K on April 2024

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Showing 1-10 of 974

Thermostat installations and replacements FAQs

It's often worth replacing your old thermostat with a newer model that can enhance your home's comfort and energy efficiency. Upgrading to a programmable or smart thermostat can save you up to $200 per year on energy bills. Plus, smart thermostats offer convenient features like remote control and learning capabilities, making your home more comfortable and easier to manage.

Signs of a bad thermostat include your HVAC system not turning on when it's supposed to or failing to reach the desired temperature. If the thermostat's display is blank or not functioning properly, it could be malfunctioning. Another indicator is the HVAC system running continuously without shutting off or cycling on and off too frequently. You might also notice uneven temperatures throughout your home, with some rooms being too warm or too cold. These issues suggest that the thermostat is failing and may need repair or replacement to ensure your HVAC system operates efficiently.

A thermostat should last between 10 to 20 years, depending on its quality and how well it's maintained. Over time, dust, wiring issues, and general wear can affect its performance. Even if a thermostat is still functioning after 10 years, you might choose to replace it to take advantage of newer energy-saving technologies and smart home integrations. Upgrading to a modern thermostat can improve efficiency, offer more control over your home's climate, and potentially lower energy bills.

The number of thermostats you need depends on your home's size, layout, and heating and cooling zones. In a standard single-zone HVAC system, one thermostat controls the temperature for the entire home. However, larger homes or those with multiple floors might benefit from multiple thermostats linked to a multi-zone HVAC system. This setup can offer better comfort and energy efficiency: It lets you customize the temperature in different areas, so you're only heating or cooling the spaces you're using.

Replacing a thermostat typically takes a professional technician about one to two hours to complete. If you're swapping out an existing thermostat for a similar model with compatible wiring, the process can be done in less than an hour. However, installing a new thermostat that requires additional wiring, such as a smart thermostat, or moving the thermostat to a new location can extend the time to two hours or more. Complex installations may also involve cutting into drywall or integrating with other home systems, which can add to the duration.

There are a few things that can cause your home thermostat to fail. The most simple one is age and cleanliness. Dirt, grease, dust, and other small particles can clog sensors and cause malfunctions in readings. You may also have a failing power supply and loose connections, and the simplest cause is that it isn't installed in the right place in your home so it can't properly sense air temperature. Repairing a thermostat costs around $210.

The homeowners guide to thermostat installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
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