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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 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


KLA Construction Services

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Approved Pro

KLA Construction Services

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2026 years of experience
Free onsite estimate

Hi Im Steve, Im a Licensed and insured Electrician. I've been in the construction skill trades for 20 years. Im available for residential, commercial and industrial electrical needs in the area of Denver/Aurora metro area. All electrical needs, services, panel upgrades, home remodel, basement remodel, Sub-Panel install, solar panels, Generator install, fire alarm system installation or service, ECS system installation or service and all lighting. Please give me a call for any of your needs. No job to small, I promise to safely produce a quality service on time.

Hi Im Steve, Im a Licensed and insured Electrician. I've been in the construction skill trades for 20 years. Im available for residential, commercial and industrial electrical needs in the area of Denver/Aurora metro area. All electrical needs, services, panel upgrades, home remodel, basement remodel, Sub-Panel install, solar panels, Generator install, fire alarm system installation or service, ECS system installation or service and all lighting. Please give me a call for any of your needs. No job to small, I promise to safely produce a quality service on time.


Avatar for HoneyDo Handyman

HoneyDo Handyman

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Approved Pro

HoneyDo Handyman

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
10 local quotes requested
2026 years of experience

"Hi neighbors! My name is David and I am the HoneyDo Handyman. I've been helping homeowners and businesses for more than a decade, and have hundreds of satisfied repeat clients. Let me tackle those 'to-do' lists that never seem to end. Whether it’s a leaky faucet, a TV that needs mounting, or a deck that needs a refresh, I pride myself on finding the best solution for you, performing quality work, and making sure you're satisfied with the results.

"Hi neighbors! My name is David and I am the HoneyDo Handyman. I've been helping homeowners and businesses for more than a decade, and have hundreds of satisfied repeat clients. Let me tackle those 'to-do' lists that never seem to end. Whether it’s a leaky faucet, a TV that needs mounting, or a deck that needs a refresh, I pride myself on finding the best solution for you, performing quality work, and making sure you're satisfied with the results.


Jordan Rea

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Jordan Rea

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2026 years of experience

Hi — I’m Angie’s List newcomer and handyman ready to help with your home projects. I hold a mechanical engineering degree and bring practical, problem-solving experience to every job. I handle light electrical work, basic plumbing, general building and carpentry, fence and deck construction/repair, hanging fixtures and TVs, painting, and junk removal. I take pride in clear communication, attention to detail, and doing work right the first time. Whether it’s a small repair or a weekend project, I’ll arrive on time, assess the situation, and provide straightforward options and pricing. If you need a reliable, skilled hand around the house, send me a message with the details and I’ll get back to you promptly.

Hi — I’m Angie’s List newcomer and handyman ready to help with your home projects. I hold a mechanical engineering degree and bring practical, problem-solving experience to every job. I handle light electrical work, basic plumbing, general building and carpentry, fence and deck construction/repair, hanging fixtures and TVs, painting, and junk removal. I take pride in clear communication, attention to detail, and doing work right the first time. Whether it’s a small repair or a weekend project, I’ll arrive on time, assess the situation, and provide straightforward options and pricing. If you need a reliable, skilled hand around the house, send me a message with the details and I’ll get back to you promptly.


All Season Heating & Air Conditioning, LLC

5.00(
4
)
Approved Pro

All Season Heating & Air Conditioning, LLC

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

All Season Heating & Air Conditioning has been locally owned and operated for over 17 years serving Fort Collins and the surrounding areas. Our size allows us to maintain the highest level of quality and customer service. Our focus is and has always been the attention to the needs of each and every customer. We specialize in the installation of custom heating, air conditioning and zone systems for all residential and light commercial needs. This includes: * New and replacement furnace and air conditioning system installations *Remodels *Basement finishes *Home additions *Steam Humidifiers *Zone Systems *Service and maintenance on all makes and models

"Fantastic - came out id the dead of winter to fix my heater! Also installed a central A/C unit. Always cleans up, even vacuums after he is done. Good price & excellent service!"

Mike H on March 2017

All Season Heating & Air Conditioning has been locally owned and operated for over 17 years serving Fort Collins and the surrounding areas. Our size allows us to maintain the highest level of quality and customer service. Our focus is and has always been the attention to the needs of each and every customer. We specialize in the installation of custom heating, air conditioning and zone systems for all residential and light commercial needs. This includes: * New and replacement furnace and air conditioning system installations *Remodels *Basement finishes *Home additions *Steam Humidifiers *Zone Systems *Service and maintenance on all makes and models

"Fantastic - came out id the dead of winter to fix my heater! Also installed a central A/C unit. Always cleans up, even vacuums after he is done. Good price & excellent service!"

Mike H on March 2017

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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.