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Find Thermostat installers and replacers in Longmont

Avatar for Comfair Heating and Cooling LLC

Comfair Heating and Cooling LLC

5.00(
21
)
Approved Pro

Comfair Heating and Cooling LLC

5.00(
21
)
Approved Pro
Super Service Award
3 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Habib got my heat back up and running in a timely fashion went the extra mile to get the parts and I would highly recommend this company. "

Anthony V on January 2026

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Habib got my heat back up and running in a timely fashion went the extra mile to get the parts and I would highly recommend this company. "

Anthony V on January 2026


Colorado Home Solutions

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Colorado Home Solutions

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

Michael 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.

Michael 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.


Avatar for Mike's Mechanical Services, LLC

Mike's Mechanical Services, LLC

4.58(
6
)
Approved Pro

Mike's Mechanical Services, LLC

4.58(
6
)
Approved Pro
Customers say: Quick response
12 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"The tech this company sent to my home was respectful. Above all else very knowledgeable. Would recommend again and again. Thank you for the great service."

Mark L on October 2023

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"The tech this company sent to my home was respectful. Above all else very knowledgeable. Would recommend again and again. Thank you for the great service."

Mark L on October 2023


Avatar for Buffalo Creek Boilers, Tankless & Air

Buffalo Creek Boilers, Tankless & Air

5.00(
3
)
Approved Pro

Buffalo Creek Boilers, Tankless & Air

5.00(
3
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

10 YEARS EXPERIENCE - Insured/master mechanical license. I work on all brands of HVAC equipment, boilers, and water heaters. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job

"Wes was great to work with! He is extremely knowledgeable and highly skilled in boilers, tankless water heaters, and air conditioning systems. He quickly diagnosed and repaired all our difficult boiler and hot water heat system issues, some of which had been going on for years. It has never worked better. I am so glad we found him!"

Dom E on April 2025

10 YEARS EXPERIENCE - Insured/master mechanical license. I work on all brands of HVAC equipment, boilers, and water heaters. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job

"Wes was great to work with! He is extremely knowledgeable and highly skilled in boilers, tankless water heaters, and air conditioning systems. He quickly diagnosed and repaired all our difficult boiler and hot water heat system issues, some of which had been going on for years. It has never worked better. I am so glad we found him!"

Dom E on April 2025


Avatar for Absolute 1st Choice Heating & Air Conditioning Inc.

Absolute 1st Choice Heating & Air Conditioning Inc.

4.81(
107
)
Approved Pro

Absolute 1st Choice Heating & Air Conditioning Inc.

4.81(
107
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
17 years of experience

We are an established Hvac Colorado company locally owned and in business 10+ years. And offer Hvac services to our new customers and repeat customers. We provide Hvac to our residential and commercial customers we have over 25 years-experience in the industry. Our work is always of the utmost quality, reasonably priced, and leads to referrals and a strong customer relationship. Thank you for selecting us for your past and present and future Hvac needs. Feel free to reach out to our staff if you have any questions or concerns call 720-545-4081 we will do our best to meet and exceed your Hvac needs.

"Dale is professional a always gets the job done. He has replaced two HVAC systems in our home and we can always count on him to do great work!"

James I on March 2024

We are an established Hvac Colorado company locally owned and in business 10+ years. And offer Hvac services to our new customers and repeat customers. We provide Hvac to our residential and commercial customers we have over 25 years-experience in the industry. Our work is always of the utmost quality, reasonably priced, and leads to referrals and a strong customer relationship. Thank you for selecting us for your past and present and future Hvac needs. Feel free to reach out to our staff if you have any questions or concerns call 720-545-4081 we will do our best to meet and exceed your Hvac needs.

"Dale is professional a always gets the job done. He has replaced two HVAC systems in our home and we can always count on him to do great work!"

James I on March 2024


Avatar for Coal Creek Heat, LLC

Coal Creek Heat, LLC

5.00(
4
)
Approved Pro

Coal Creek Heat, LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

We provide our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems, as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Devin was so professional and knowledgeable. Great company and service!! Highly recommend."

James M on May 2020

We provide our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems, as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Devin was so professional and knowledgeable. Great company and service!! Highly recommend."

James M on May 2020


Avatar for Citos All Around Services

Citos All Around Services

5.00(
3
)
Approved Pro

Citos All Around Services

5.00(
3
)
Approved Pro
4 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"I hired Ervey to mount my TV on my wall, he did an excellent work, very professional, and very nice guy. He also helped me fix my son’s window on his car. He is a good handy man and can repair a lot of stuff on cars as well. Will definitely use him again. "

beatriz a on February 2026

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"I hired Ervey to mount my TV on my wall, he did an excellent work, very professional, and very nice guy. He also helped me fix my son’s window on his car. He is a good handy man and can repair a lot of stuff on cars as well. Will definitely use him again. "

beatriz a on February 2026


Avatar for Applewood Plumbing Heating & Electric

Applewood Plumbing Heating & Electric

4.87(
573
)
Approved Pro

Applewood Plumbing Heating & Electric

4.87(
573
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
142 local quotes requested

We have been proudly serving Denver, Boulder and the surrounding metro areas for over 50 years! At Applewood EVERY technician is licensed, background checked & drug tested. When using Applewood, customers receive a picture and short bio of the technician dispatched to their home. We will fix your problem RIGHT, the first time, at an approved, up-front price. After your appointment, we follow up with a phone call to make sure your appointment went just as you expected. We are open 6AM to 10PM, 7 days a week to serve you at your convenience with NO OVERTIME CHARGES.

"Fast effective!!"

Jennifer R on December 2025

We have been proudly serving Denver, Boulder and the surrounding metro areas for over 50 years! At Applewood EVERY technician is licensed, background checked & drug tested. When using Applewood, customers receive a picture and short bio of the technician dispatched to their home. We will fix your problem RIGHT, the first time, at an approved, up-front price. After your appointment, we follow up with a phone call to make sure your appointment went just as you expected. We are open 6AM to 10PM, 7 days a week to serve you at your convenience with NO OVERTIME CHARGES.

"Fast effective!!"

Jennifer R on December 2025


Avatar for Aire Serv of West Fort Collins Loveland

Aire Serv of West Fort Collins Loveland

5.00(
6
)
Approved Pro

Aire Serv of West Fort Collins Loveland

5.00(
6
)
Approved Pro
10 local quotes requested
Free onsite estimate

West Fort Collins Loveland's Premium HVAC Services for Year-Round Comfort Upfront pricing - you pay by the job, not the hour At Aire Serv® of West Fort Collins Loveland, heating and air conditioning services are our specialty. Our friendly and knowledgeable service professionals are happy to answer any questions you may have and recommend the best service options for you.

"We called AireServ as our furnace was making a funny noise and we’re nervous first time homeowners. Blake came out, answered our many questions about furnace maintenance, and serviced it so it's not making any noise anymore! "

Abby L on February 2026

West Fort Collins Loveland's Premium HVAC Services for Year-Round Comfort Upfront pricing - you pay by the job, not the hour At Aire Serv® of West Fort Collins Loveland, heating and air conditioning services are our specialty. Our friendly and knowledgeable service professionals are happy to answer any questions you may have and recommend the best service options for you.

"We called AireServ as our furnace was making a funny noise and we’re nervous first time homeowners. Blake came out, answered our many questions about furnace maintenance, and serviced it so it's not making any noise anymore! "

Abby L on February 2026


Avatar for Your Comfort Heating and Cooling

Your Comfort Heating and Cooling

5.00(
9
)
Approved Pro

Your Comfort Heating and Cooling

5.00(
9
)
Approved Pro
Customers say: Quick response
28 local quotes requested
18 years of experience

Your Comfort Heating and Cooling 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

"Dean was efficient, clear in the inspection. Work was done well."

Tobye E on January 2026

Your Comfort Heating and Cooling 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

"Dean was efficient, clear in the inspection. Work was done well."

Tobye E on January 2026

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FAQs for thermostat installation and replacement projects in Longmont, CO

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 Longmont, CO homeowners’ guide to thermostat installations and replacements

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