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Verified Reviews for Air Conditioning pros in Thornton, CO

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

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

Last update on July 08, 2026

Find Air conditioning pros in Thornton

Avatar for Lous Heating and Cooling LLC
Lous Heating and Cooling LLC
5.0(
70
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"On time and explained things well. Did the job and got it done. Swamp cooler which wasn't working is now working!"
80% Furnace Replacement
1998 York Furnace
Air Conditioner Replacement
Furnace Replacement
Swamp Cooler Deep Cleaning

+7

Response time4 hrs
71 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Air&Hvac Master
Air&Hvac Master
5.0(
14
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Thornton, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"They had a lot of experience in the cleaning up our air duct. They were the best. They also cleaned my dryer and chimney very well. I'm comfortable using them again and again. They had a reasonable price."
Clogged AC coil
After cleaning
Air Duct Cleaning Project
Air Duct Cleaning Project
Coil after cleaning

+26

Response time10 hrs
Response rate100%
3 neighbors recently requested a quote
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Avatar for Pacific Air, Inc.
Pacific Air, Inc.
4.8(
84
)
Central A/C - Service or Repair

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Offers commercial services

"I had the AC person out who had been servicing my AC as well as my mom’s for years and he told me the unit was shot and I needed to replace the whole thing. I called Pacific Air this morning, they came at noon, had it up in running 20 minutes later. Only charged me the service fee. While I am sad about the other guy trying to rip me off, I am so happy I called Pacific Air. An honest, fair, professional company."
New inside set up
New Outside set up
Before inside set up
Before outside set up
Response time4 hrs
Response rate96%
1 neighbors recently requested a quote
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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 - InstallCentral A/C - Install - For Business+1 more

Serving Thornton, CO and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"M&H Air helped upgrade Gas furnace/ Forced air heating system, by adding new ducts and vents in basement to help create more comfortable living space. Also has provided great preventive maintenance service to my Heating and A/C system!"
M & H Air, LLC
Victory Outreach Church
2 neighbors recently requested a quote
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Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
5.0(
87
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Great experience with seasonal maintenance check. They arrived early in appointment window, checked furnace, humidifier, & air conditioning, explained everything clearly. They replaced a filter, examined every part of air conditioning system, made some recommendations, had easy payment system. I will look forward to using them 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

27 neighbors recently requested a quote
Recommended by41%of homeowners
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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 A/C - Service or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Dale is my new AC guy!!"
Response time8 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Emporia Home Services
Emporia Home Services
4.8(
22
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Thornton, CO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

Heating, Cooling & Electrical Services Emporia is committed to keeping you comfortable in your own home with expert service, quality parts and equipment, as well as unique technology designed and assembled with care by our own engineers right here in Colorado. Emporia proudly serves Littleton, Lakewood, and the Denver Metro area with quality Heating, Ventilation, and Air Conditioning (HVAC) solutions. Our goal is to ensure that every customer receives best-of-class service and reliable products, all at the lowest possible price we can offer.

Additional Photos
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Additional Photos

+11

Response time2 days
Response rate100%
6 neighbors recently requested a quote
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Avatar for D&D Air Duct Pros
D&D Air Duct Pros
5.0(
17
)
Air Ducts & Vents - Clean

Serving Thornton, CO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Great communication! Was able to send a video scope up the vent and ran a air flow test. Price was great."
Aftet
Save
After
Air Ducts
After

+35

2 neighbors recently requested a quote
Recommended by47%of homeowners
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Avatar for Clean Air Genie, LLC
Clean Air Genie, LLC
4.9(
66
)
Air Ducts & Vents - Clean

Serving Thornton, CO and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"Clean Air Genie was great. Amazing customer service, did exactly what we needed done, and very friendly. Highly recommend!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

3 neighbors recently requested a quote
Recommended by5%of homeowners
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Avatar for Mountain Pro HVAC Services, LLC
Mountain Pro HVAC Services, LLC
5.0(
126
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Adrians relentless efforts to get our swamp cooler up and running were very much appreciated. He was very knowledgeable and kept us informed throughout the entire process. We will definitely reach out to him in the future when we decide to install central AC."
Maintenance Services
Maintenance Services
Maintenance Services
Maintenance Services
New AC / Furnace Install

+4

Response time11 hrs
Response rate92%
Recommended by100%of homeowners
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Air Conditioning questions, answered by experts

If your AC condenser is nearing the end of its life, it might leak fluid or make loud or unusual sounds (like grinding or hissing). You might also notice that it isn’t heating your home as evenly or effectively as it once did. Also, an aging condenser will have to work harder to cool your home, which may force it to use more power and drive up your utility bills.

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

One of the first signs of mold in an air conditioner is a musty smell. You're likely to notice the smell when the unit runs, from the air coming out of the vents or the unit itself. You may also be able to see mold growing on the unit, such as near the condenser coils or by the fan. In some cases, there may be visible mold by the vents.

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

The Thornton, CO homeowners’ guide to air conditioning services

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

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