Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Littleton, CO

There are 29 highly-rated local heating and air conditioning pros.

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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Littleton

Avatar for Behold Heating & Cooling Services

Behold Heating & Cooling Services

4.94(
33
)
Approved Pro

Behold Heating & Cooling Services

4.94(
33
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
298 local quotes requested

Behold the Difference! Every day we are invited into our customer’s homes. Into their safe place and sanctuary. Quite often this is in the midst of a concern or issue that needs to be fixed! With an extensive background that spans well beyond just the trades, we love to be different. In addition to decades of industry experience, we bring some secret sauce - we love to take all the time needed to help, to make sure you are comfortable, and to provide amazing solutions. Come BEHOLD the difference! "Unfortunately we do not service or intall swamp or evaporative coolers".

"My water heater had gone out and called and called around trying to get quotes and big company’s were trying to schedule in person quotes which I know is a strong arm to get the work done then and there because they are already at your house ect. But with Behold I had a personal direct text from them asking about my situation and all I had to do was give some info send in pictures and voilà! They gave me their quote(2300$) which also beat all the company’s(3k$+) I had heard from! They had a tech out to me ASAP. It almost could’ve been same day but I was in no rush. Hunter came in and did it all him self of removal of old and installing new in just two hours! They are great to work worth and will definitely recommend and go to again."

London A on November 2025

Behold the Difference! Every day we are invited into our customer’s homes. Into their safe place and sanctuary. Quite often this is in the midst of a concern or issue that needs to be fixed! With an extensive background that spans well beyond just the trades, we love to be different. In addition to decades of industry experience, we bring some secret sauce - we love to take all the time needed to help, to make sure you are comfortable, and to provide amazing solutions. Come BEHOLD the difference! "Unfortunately we do not service or intall swamp or evaporative coolers".

"My water heater had gone out and called and called around trying to get quotes and big company’s were trying to schedule in person quotes which I know is a strong arm to get the work done then and there because they are already at your house ect. But with Behold I had a personal direct text from them asking about my situation and all I had to do was give some info send in pictures and voilà! They gave me their quote(2300$) which also beat all the company’s(3k$+) I had heard from! They had a tech out to me ASAP. It almost could’ve been same day but I was in no rush. Hunter came in and did it all him self of removal of old and installing new in just two hours! They are great to work worth and will definitely recommend and go to again."

London A on November 2025


Avatar for Ultimate Heating | Cooling | Plumbing | Electric

Ultimate Heating | Cooling | Plumbing | Electric

4.74(
35
)
Approved Pro

Ultimate Heating | Cooling | Plumbing | Electric

4.74(
35
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
18 local quotes requested

Local Family owned and operated, Ultimate Heating | Cooling | Plumbing | Electric specializes in repairs, installs and maintenance of HVAC, Plumbing and Electric systems in the Denver metro area. Our technicians are trained, licensed, insured and NATE certified. With over 40 years' experience in the industry, Ultimate can help you with any home project including service on any make and model of equipment.

"My furnace had gone out the other day so I called Ultimate. They came out the same day and I’ve been very very pleased with them. They came in the window. They told me they were gonna be here, the technician was very professional, very friendly, and I felt very, very comfortable with him in my home. They fix the issue And the pricing was very fair. I would definitely refer Ultimate to everyone I know."

Leslie C on January 2025

Local Family owned and operated, Ultimate Heating | Cooling | Plumbing | Electric specializes in repairs, installs and maintenance of HVAC, Plumbing and Electric systems in the Denver metro area. Our technicians are trained, licensed, insured and NATE certified. With over 40 years' experience in the industry, Ultimate can help you with any home project including service on any make and model of equipment.

"My furnace had gone out the other day so I called Ultimate. They came out the same day and I’ve been very very pleased with them. They came in the window. They told me they were gonna be here, the technician was very professional, very friendly, and I felt very, very comfortable with him in my home. They fix the issue And the pricing was very fair. I would definitely refer Ultimate to everyone I know."

Leslie C on January 2025


Avatar for Attraction Heating & Cooling

Attraction Heating & Cooling

5.00(
1
)
Approved Pro

Attraction Heating & Cooling

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 local quotes requested

In Business Since 2015 Attraction Heating & 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.

"It went great. Mike and his team where on time, on budget and very professional. Will hire again. Thanks Mike!"

Chuck M on January 2025

In Business Since 2015 Attraction Heating & 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.

"It went great. Mike and his team where on time, on budget and very professional. Will hire again. Thanks Mike!"

Chuck M on January 2025


Avatar for Viking Inc. Heating, A/C & Misc. Plumbing, Inc.

Viking Inc. Heating, A/C & Misc. Plumbing, Inc.

4.70(
10
)
Approved Pro

Viking Inc. Heating, A/C & Misc. Plumbing, Inc.

4.70(
10
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
20 local quotes requested

Family owned & operated for over 35 yrs. Honest & reliable heating and A/C which includes repair and service of all brand furnaces, boilers and A/C. New installation of furnaces, boilers & A/C. Humidifiers, water heaters, air cleaners and misc. plumbing issues. Install new gas lines for adding stoves, driers etc.; New construction

"Viking had serviced my furnaces and air conditioners in the past. Price was a little high but work was satisfactory. This year, I called four times and used their web site over a six week period to try to schedule a service appointment for the air conditioners. Although I was always told their scheduler would get back to me they never did. A big waste of my time and past money trying to establish a service relationship I could count on. I gave them a "D": rather than an "F" as their call service at least answered all though that was it."

Bruce M on July 2020

Family owned & operated for over 35 yrs. Honest & reliable heating and A/C which includes repair and service of all brand furnaces, boilers and A/C. New installation of furnaces, boilers & A/C. Humidifiers, water heaters, air cleaners and misc. plumbing issues. Install new gas lines for adding stoves, driers etc.; New construction

"Viking had serviced my furnaces and air conditioners in the past. Price was a little high but work was satisfactory. This year, I called four times and used their web site over a six week period to try to schedule a service appointment for the air conditioners. Although I was always told their scheduler would get back to me they never did. A big waste of my time and past money trying to establish a service relationship I could count on. I gave them a "D": rather than an "F" as their call service at least answered all though that was it."

Bruce M on July 2020


Avatar for Otter HVAC Solutions

Otter HVAC Solutions

5.00(
7
)
Approved Pro

Otter HVAC Solutions

5.00(
7
)
Approved Pro
Customers say: Quick response
20 local quotes requested
2 years of experience

In Business Since 2024 Otter HVAC Solutions 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. How We Got Started I chose to work in this industry because Hi there— I’m Mitch Atwell, HVAC and Boiler Technician with over 15 years experience installing and repairing systems. I’m also an Eagle Scout! I’ve worked at all levels of the industry and can help you make the best decisions for your home. I’m here to help you keep the heat on, get some AC, and make your life more comfortable for a comfortable price. Please reach out with any questions!. We started in this industry in 2012. We describe our business as Family owned and operated

"Mitch had it all planned out and was in and out. We now have endless hot water!"

Brad L on February 2025

In Business Since 2024 Otter HVAC Solutions 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. How We Got Started I chose to work in this industry because Hi there— I’m Mitch Atwell, HVAC and Boiler Technician with over 15 years experience installing and repairing systems. I’m also an Eagle Scout! I’ve worked at all levels of the industry and can help you make the best decisions for your home. I’m here to help you keep the heat on, get some AC, and make your life more comfortable for a comfortable price. Please reach out with any questions!. We started in this industry in 2012. We describe our business as Family owned and operated

"Mitch had it all planned out and was in and out. We now have endless hot water!"

Brad L on February 2025


Tempcontrol

New on AngiNew on Angi
Approved Pro

Tempcontrol

New on AngiNew on Angi
Approved Pro
15 local quotes requested
26 years of experience

In Business Since 1999 Quality work, knowledgeable techs, and great prices. At Tempcontrol Heating & Air Conditioning, 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!

In Business Since 1999 Quality work, knowledgeable techs, and great prices. At Tempcontrol Heating & Air Conditioning, 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!


"My dad is elderly and needed a new HVAC system. So I decided to find a person who could install a new HVAC system and we found Cody. Cody was very friendly, honest, and communicated very well. At one point he told us we could probably go another 3-5 years with the current system, but since my dad only has so many years left we told he to go ahead and install a whole new system in. He treated us like gold and even spent the time showing my Dad all the new features with the thermostat. I would highly recommend Cody for any repairs or HVAC needs you have."

Brian T on June 2021

We offer all of your residential and commercial needs at a competitive price. We provide complete installs, repairs, emergency calls as well as full service for your ac, furnace, water heaters and swamp coolers.

"My dad is elderly and needed a new HVAC system. So I decided to find a person who could install a new HVAC system and we found Cody. Cody was very friendly, honest, and communicated very well. At one point he told us we could probably go another 3-5 years with the current system, but since my dad only has so many years left we told he to go ahead and install a whole new system in. He treated us like gold and even spent the time showing my Dad all the new features with the thermostat. I would highly recommend Cody for any repairs or HVAC needs you have."

Brian T on June 2021


NexGen Hvac

No reviews yet

NexGen Hvac

No reviews yet
15 years of experience

At NexGen hvac, we roll out red carpet treatment. Your experience with us will be five-star from start to finish. We do it right, the first time, guaranteed.

At NexGen hvac, we roll out red carpet treatment. Your experience with us will be five-star from start to finish. We do it right, the first time, guaranteed.


Avatar for AIR PRIME

AIR PRIME

5.00(
1
)

AIR PRIME

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

At our HVAC services company, we are driven by a steadfast commitment to customer satisfaction. Our goal is not just to meet but to exceed expectations, ensuring that every customer is delighted with the work we do. This dedication is deeply rooted in our core value of integrity, guiding every interaction and decision we make. We believe in conducting business with honesty, transparency, and ethical behavior, building trust with our clients every step of the way. Our comprehensive services include expert installation, meticulous maintenance, and responsive service for all your HVAC systems and equipment needs.

"profesionales"

Juan P on September 2024

At our HVAC services company, we are driven by a steadfast commitment to customer satisfaction. Our goal is not just to meet but to exceed expectations, ensuring that every customer is delighted with the work we do. This dedication is deeply rooted in our core value of integrity, guiding every interaction and decision we make. We believe in conducting business with honesty, transparency, and ethical behavior, building trust with our clients every step of the way. Our comprehensive services include expert installation, meticulous maintenance, and responsive service for all your HVAC systems and equipment needs.

"profesionales"

Juan P on September 2024


Avatar for Homerun Heating & Air

Homerun Heating & Air

No reviews yet

Homerun Heating & Air

No reviews yet
30 years of experience

Established in 1995 and based out of beautiful Longmont, Colorado. HomeRun Heating & Air serves residential, multi-family and commercial HVAC needs across the Front Range from Denver to Fort Collins. Providing quality products from industry partners such as Carrier, Heil, Champion, iWave and many others; choosing HomeRun to service, repair, retrofit or completely install your (HVAC) heating and cooling system, will leave you in exceptional comfort 24 hours a day. Call us today at (303) 682-9504 or schedule an appointment/consultation.

Established in 1995 and based out of beautiful Longmont, Colorado. HomeRun Heating & Air serves residential, multi-family and commercial HVAC needs across the Front Range from Denver to Fort Collins. Providing quality products from industry partners such as Carrier, Heil, Champion, iWave and many others; choosing HomeRun to service, repair, retrofit or completely install your (HVAC) heating and cooling system, will leave you in exceptional comfort 24 hours a day. Call us today at (303) 682-9504 or schedule an appointment/consultation.

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Heating and Air Conditioning questions, answered by experts

Yes, it's normal for air conditioners to leak tiny amounts of water due to condensation. Under normal circumstances, all excess moisture travels to the drain pan to be pumped through your system's drain line. You should call a technician to diagnose the issue if you're noticing frequent leaking or pooling. It's also important to investigate if your homeowners insurance can cover water damage.

Your heating and cooling systems cost you the most on your electric bill and make up 50% of your bill on average. Your washing machine, dryer, oven, and stove contribute significantly to your electric bill as well. Lights, fans, and smaller electronics add up, but aren’t the biggest energy consumers. You can reduce your power usage by setting optimal temperatures on your thermostat and investing in energy-efficient appliances.

If your home has an existing forced-air heat system, you can add a central air conditioner to it. An HVAC technician can retrofit your forced-air heating system by installing an evaporator coil onto the furnace plenum, the box next to the furnace that draws in air. Once installed, the air conditioning coils use the furnace’s blower to circulate the air.

The $5,000 rule for HVAC systems helps homeowners decide whether to repair or replace an AC or furnace. Take the quote for the HVAC repair cost and multiply that by the age of the HVAC system. If the total is higher than $5,000, it’s more cost-effective to replace the system. If the total is lower than $5,000, consider repairing the system.

There are a few reasons your AC is running but not cooling your room. Thermostat issues and dust and debris, which can clog your system, are common problems. It could also be a broken component, such as a compressor, blower fan, or evaporator coils. You’ll need to call a pro to diagnose the issue.

The Littleton, CO homeowners’ guide to heating and air conditioning services

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

What do you need done? We’ll find top pros.
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