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Verified Reviews for Air Conditioning pros in Derby, CO

*The Angi rating for Air Conditioning companies in Derby, 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 Derby, 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 17, 2026

Find Air conditioning pros in Derby

Avatar for Air&Hvac Master
Air&Hvac Master
5.0(
14
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Derby, 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 Derby, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Offers commercial services

"Our residential AC is in a converted bus. We are new to the area, and first called several other companies who could not work on it (because they were RV repair technicians and not HVAC certified) or would not work on it (because most HVAC certified technicians were not work on motorhomes). We are so grateful that Pacific air was willing and able to work on our unit. We are fully satisfied with the work they did, as well as the very reasonable fee they charged."
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 Derby, CO and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"Romero Thank you for your exceptional service when our air conditioning stopped working. We truly appreciate that you came out the same day to inspect the system. What we valued most was how you kept us updated throughout the entire process. Your communication, professionalism, and prompt delivery were outstanding. Thank you also for explaining all the options our home qualified for before we made the investment."
M & H Air, LLC
Victory Outreach Church
3 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 A/C - Service or Repair - For Business

Serving Derby, 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 Behold Heating & Cooling Services
Behold Heating & Cooling Services
4.9(
47
)
Central A/C - Service or Repair

Serving Derby, CO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Not only did the crew of Behold, Tristan and Kendrick, install a new furnace, but they also installed the Air Conditioning unit, all in one day! They were professional, thorough, friendly and diligent workers. Would hire them any time."
Boiler Repair/Replacement
Boiler Replacement and Repipe
Boiler Replacement and Repipe
Furnace, AC, Water Heater Replacement
Furnace Tune-up

+35

Response time6 hrs
Response rate100%
120 neighbors recently requested a quote
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Avatar for New Era HVAC
New Era HVAC
4.8(
28
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Derby, CO and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Jared is one of the most knowledgeable technicians I have ever had service my over-the-hill A/C unit. If you're looking for professional service, with an informed technician then I would recommend his services. I'll be using them again for sure."
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 Clean Air Genie, LLC
Clean Air Genie, LLC
4.9(
55
)
Air Ducts & Vents - Clean

Serving Derby, 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

5 neighbors recently requested a quote
Recommended by6%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 Derby, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Swamp cooler working better than ever. Excellent service!"
Maintenance Services
Maintenance Services
Maintenance Services
Maintenance Services
New AC / Furnace Install

+4

Response time11 hrs
Response rate92%
Recommended by100%of homeowners
Request Quote
Avatar for D&D Air Duct Pros
D&D Air Duct Pros
5.0(
15
)
Air Ducts & Vents - Clean

Serving Derby, 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 by53%of homeowners
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Avatar for Comfair Heating and Cooling LLC
Comfair Heating and Cooling LLC
5.0(
24
)
Central A/C - Service or RepairCentral A/C - InstallCentral A/C - Install - For Business

Serving Derby, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"My brother referred me to Comfair Heating and cooling. Habib installed a furnace and AC in my condo, Habib was very professional and his work was excellent. I am very happy with the work and will definitely refer Habib to my friends and family."
Commercial
Commercial
Furnace fix
New Unit install
Residential

+3

Response time3 hrs
Response rate100%
1 neighbors recently requested a quote
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...
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Air Conditioning questions, answered by experts

You might notice that your air conditioner isn’t running as effectively as it once did. Specifically, your AC unit could take longer to cool your home, or it might struggle to remove humidity from the air. Higher utility bills and hissing sounds coming out of your AC could also indicate a leak.

To reset your air conditioner, start by turning it off at the thermostat. Then, shut off power to the AC system at the circuit breaker. Some units have a dedicated "reset" button; if yours does, press and hold it for three to five seconds. If your air conditioner doesn't have a reset button, or if you are resetting it after a power outage, leave the circuit breaker off for at least 30 minutes to allow the system to reset itself. Afterward, turn the power back on at the breaker, turn on the AC from the thermostat, and set it to "cool" to test the system.

If you don't clean your AC evaporator coils, dirt and debris will build up, which impairs the system's ability to transfer heat. This forces the unit to work harder, leading to inefficient performance, higher energy bills, and frequent breakdowns. Over time, neglected coils can corrode, which may cause refrigerant leaks, or develop mold, ice buildup, and a clogged condensate drain, resulting in poor air quality and an uncomfortable home.

No, for two very important reasons. First, it’s illegal to release refrigerant into the air or ground since it can be toxic and cause environmental damage. Technicians typically pump old or extra refrigerant into separate tanks for special disposal. Second, without professional equipment to read refrigerant pressure and levels, plus the AC’s suggested requirements, it’s impossible to know if you’ve removed the right amount of refrigerant. Stay away from a DIY solution here and seek an expert with the right tools.

There are a few things you can do to make your AC repair technician’s job easier and your home more comfortable while you wait for AC repair:

  • Cut back trees, shrubs, and weeds around the outdoor compressor 

  • Clear a pathway inside and outside to your AC components

  • Set up a ladder for attic access if necessary

  • Pull your window AC out of the window and place in an easily accessible spot

  • Supplement with fans and open windows to help keep your house comfortable

The Derby, CO homeowners’ guide to air conditioning services

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

See all articles