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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon981
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Thornton, CO

*The Angi rating for Heating And Air Conditioning Service companies in Thornton, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Thornton, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on July 24, 2026

Find Heating and air conditioning pros in Thornton

Avatar for Lous Heating and Cooling LLC
Lous Heating and Cooling LLC
5.0(
69
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair+1 more

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Extremely profession, courteous, and honest consultation and repair. I would highly recommend Louis for any kind of HVAC work"
80% Furnace Replacement
1998 York Furnace
Air Conditioner Replacement
Furnace Replacement
Swamp Cooler Deep Cleaning

+7

Response time4 hrs
178 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for M & H Air, LLC
M & H Air, LLC
5.0(
18
)
Central A/C - Service or RepairCentral A/C - InstallDuctless Mini-split Heating System - Install or Replace+14 more

Serving Thornton, CO and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"Very Professional and did not hesitate to explain everything in detail. It is hard to find an HVAC company you can trust to show up and do it right the first time and I believe this is one. Will recommend for future jobs!"
M & H Air, LLC
Victory Outreach Church
3 neighbors recently requested a quote
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Avatar for Air&Hvac Master
Air&Hvac Master
5.0(
14
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallCentral A/C - Service or Repair+3 more

Serving Thornton, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I&C Vac was prompt, informative, professional, personable, and finished the project very quickly. I would highly recommend them to others."
Clogged AC coil
After cleaning
Air Duct Cleaning Project
Air Duct Cleaning Project
Coil after cleaning

+26

Response time10 hrs
Response rate100%
1 neighbors recently requested a quote
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Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
5.0(
74
)
Gas Furnace / Forced Air Heating System - InstallHeat Pump - Install or ReplaceBoiler or Radiator Heating System - Install or Replace+11 more

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I was impressed with how my pro, Bryan, explained everything to me before he did it. He’s very knowledgeable and personable. I would hire behold HVAC again."
Mini Split Install
A nice, new, clean Boiler - restoring heat right in time for the evening!
Glad we were able to restore heat same day for this customer. Replaced Furnace and A/C for proper installation, air flow and 10 year warranty on FULL SYSTEM.
Glad we were able to restore heat same day. Full Boiler replacement, repipe and zone valves.
Mini Split Install

+67

14 neighbors recently requested a quote
Recommended by47%of homeowners
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Avatar for Emporia Home Services
Emporia Home Services
4.8(
22
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+26 more

Serving Thornton, CO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"They did an excellent job. The HVAC person was very knowledgeable and dedicated, to me its a reliable employee. For the person that installed the energy monitor, he seemed to be competent."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time2 days
Response rate100%
7 neighbors recently requested a quote
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Avatar for Absolute 1st Choice Heating & Air Conditioning Inc.
Absolute 1st Choice Heating & Air Conditioning Inc.
4.5(
122
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceElectric Boiler or Radiator Heating System - Repair+10 more

Serving Thornton, CO and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"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!"
Response time8 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for New Era HVAC
New Era HVAC
4.8(
28
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+7 more

Serving Thornton, CO and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"New Era HVAC was amazing! I own a small business that has a very challenging environment to work around. Jared was extremely professional and minimized the disruption to our routine. We have large warehouse heaters. A few years ago we had one installed by another company. They left a huge mess, took 2 1/2 days to do the work and had no regard for disrupting our business. In contrast, when Jared replaced the second one he was done in one day, left the area clean and neat when he left, and was extremely accommodating with us. We have also had a tankless water heater replaced by New Era and had the same experience. Professional, honest, and reliable - you will not find a better company out there!!"
Navien tankless water heater pvc direct vent
Navien tankless water heater hard piped (copper)
Navien tankless water heater (acid neutralizes)
Gas fired unit heater
Swamp cooler

+49

Response time12 hrs
Response rate98%
Recommended by100%of homeowners
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Avatar for One Hour Heating & Air Conditioning - Loveland
One Hour Heating & Air Conditioning - Loveland
4.7(
207
)
Central A/C - Service or RepairAir Ducts & Vents - CleanGas Furnace / Forced Air Heating System - Repair+6 more

Serving Thornton, CO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1978

Free estimates

Emergency services offered

"One Hour Heating & Air has been servicing my HVAC system since I moved to Fort Collins four years ago. Greg Nieves is excellent. He took time to answer all questions and went out of his way to offer suggestions and make sure I understood everything.. This company is totally competent although their prices seem a bit high. However, their service is great and worth the price since I've never had to call them back with a complaint."
49 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Elevation HVAC
Elevation HVAC
5.0(
18
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or Replace+4 more

Serving Thornton, CO and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Tony was very easy to work with and accommodating. I had narrowed my choice to 3 firms. Elevation was not the cheapest nor the most expensive but I felt most comfortable with Tony and believe he offered the most value. My air conditioner was installed today, I hope this will be the start of a great (and cool) relationship."
Furnace replacement
Furnace replacement
Furnace replacement
Furnace replacement
Furnace replacement

+5

Response time2 hrs
Response rate88%
Recommended by100%of homeowners
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Showing 1-10 of 1137
Heating and Air Conditioning questions, answered by experts

Don’t run your AC with a wet filter. It can cause your AC to work too hard, which will run up your utility bill and cause extra wear and tear on the system. You could also spread moisture and mold throughout your house. Turn off the AC, remove the wet filter, and check for cracks or clogs. Fix the problem (with a pro’s help, if you need it), and put a dry filter in place before you turn the system back on.

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

This is a bit of a trick question. Even though the seasons arrive at the same time every year, the weather doesn’t always behave according to the calendar. So, while it’s fair to say that you can expect to turn on your AC starting in late May or early June, it all depends on the outside temperature and how cool you like to keep your home.

Running a window air conditioner unit costs about $0.06 to $0.88 per hour. Choosing the correct size air conditioner can help it run more efficiently.

Evaporator coils in an HVAC system typically last between 10 and 15 years, which is roughly the same lifespan as the entire AC unit. The longevity of the coils can be affected by usage frequency, environmental conditions, and how well they are maintained. Regular maintenance, such as cleaning and inspections, can extend their durability. If the evaporator coil fails in an older air conditioner, it may be more cost-effective to replace the whole unit rather than just the coil.

The Thornton, 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.

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