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4.6

(411 reviews)

Top-rated heating and air conditioning pros.

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Avatar for One Hour Heating & Air Conditioning - Loveland
One Hour Heating & Air Conditioning - Loveland
4.7(
207
)

Serving Frederick, CO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1978

Free estimates

Emergency services offered

"Alex was really nice and knowledgeable about our broken AC. We did pay the $89 service fee for the evaluation. What caught me off guard was the quote for a new Amana HVAC Unit - 26K! I mentioned that I need to get a few other estimates before committing. In response, Alex said that most people find out that his prices are competitive. I would have preferred that Alex said, "Great idea! That's a lot of money and it's always a good idea to get a 2nd opinion"...or something like that. After consulting 2 other family-owned businesses with stellar reviews, we were quoted prices that were 10 to 12 thousand less than One Hour. The equipment was the same, if not even higher efficiency. Definitely shop around before committing."
61 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Absolute 1st Choice Heating & Air Conditioning Inc.
Absolute 1st Choice Heating & Air Conditioning Inc.
4.5(
122
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Got the part in blazing speed that I needed for my compressor, which is a hard-to-find part. Installed on a Saturday, and had me up and running in a couple of hours. Highly recommended."
Response time8 hrs
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Elevation HVAC
Elevation HVAC
5.0(
18
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Elevation HVAC installed a new furnace and A/C system. They were extremely courteous, professional and cost friendly. I strongly recommend Tony and his team for your future heating and A/C needs."
Furnace replacement
Furnace replacement
Furnace replacement
Furnace replacement
Furnace replacement

+5

Response time2 hrs
Response rate88%
Recommended by100%of homeowners
Avatar for Mountain Pro HVAC Services, LLC
Mountain Pro HVAC Services, LLC
5.0(
126
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Adrian was tremendous! He took on a tough project, never gave up and solved my HVAC problem. Patient, thoughtful, collaborative with pricing. Recommend him without reservation."
Maintenance Services
Maintenance Services
Maintenance Services
Maintenance Services
New AC / Furnace Install

+4

Response time11 hrs
Response rate92%
1 neighbors recently requested a quote
Avatar for HighPoint HVAC
HighPoint HVAC
5.0(
19
)

Serving Frederick, CO and surrounding areas

Approved

Credit card accepted

"They did an exceptional job and provided valuable (and fair) insight on the level of cleaning / inspection needed for various chimneys throughout our home. Would definitely recommend."
3 neighbors recently requested a quote
Avatar for Comfair Heating and Cooling LLC
Comfair Heating and Cooling LLC
5.0(
24
)

Serving Frederick, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I hired Comfair for my hvac last weekend and I couldn't be happier with the results. Habib was professional, punctual, and knowledgeable. He quickly diagnosed and fixed the issue with my system and his pricing is really reasonable. Highly recommend Comfair with all hvac services."
Commercial
Commercial
Furnace fix
New  Unit install
Residential

+3

Response time3 hrs
Response rate100%
A-Moonlight Heating & Air Conditioning
5.0(
52
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"A-Moonlight provided timely and professional service. They were able to diagnose issues with my A/C and furnace quickly and explained the issue and their proposed solutions. Brent made me aware of my options for repair and what services were necessary and what was not. They were able to install the parts I purchased and service my furnace and A/C within a few hours. They got everything working in one trip and charged about 1/6th of what a competitor was asking. I would highly recommend A-Moonlight for any residential HVAC needs and I will be hiring them in the future should I need any other HVAC services."
Response time3 hrs
8 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for AT Mechanical LLC
AT Mechanical LLC
5.0(
10
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"I called AT Mechanical to service my air conditioner. And I've got to say, it's like new! My AC used to not be able to keep up with the temp in the house. Now it easily does! Please give them a call if your AC isn't keeping up on hot days! I highly recommend using them to service your AC or furnace."
AT Mechanical LLC
AT Mechanical
AT Mechanical
AT Mechanical
AT Mechanical

+3

11 neighbors recently requested a quote
Avatar for Your Comfort Heating and Cooling
Your Comfort Heating and Cooling
5.0(
19
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"We had two AC units and a new furnace installed they were prompt, efficient, very respectful and great customer service! Dean was an absolute pleasure to work with, they have earned my business for life on any HvAC services I might need! Highly recommend"
New Amana Furnace
New Amana Heat Pump
High Efficiency
Outside Condensers
two new condensers

+3

Response time40 mins
Response rate92%
24 neighbors recently requested a quote
Avatar for Steven & Sons Heating and Cooling
Steven & Sons Heating and Cooling
4.8(
116
)

Serving Frederick, CO and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

"Forget the big corporate run HVAC companies. Steven and sons were very professional and knowledgable: gave me a real personal touch! I was so impressed I signed up for their Comfort Club which includes two HVAC tune ups. Definitely recommend!"
Steven Brazing one of our larger projects
Brazing
Mariano Brazing
Furnace Loaded and ready for delivery
Cutting

+47

Response time4 hrs
Response rate92%
7 neighbors recently requested a quote
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Showing 1-10 of 620
Heating and Air Conditioning questions, answered by experts

Both evaporator coils and condenser coils are recyclable and contain valuable, sellable metals such as copper and aluminum. Not only is it more earth-friendly to take them to a local metal recycling facility, but you can also trade them in for cash. Also, once the coils are removed from the system, they won’t have any traces of refrigerant, so you won’t have to arrange for recycling Freon or R-410A unless you’re disposing of the entire AC 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.

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.

While you’ll pay more upfront for a brand-new HVAC unit, you can save money in the long run. Here’s how to save on your new HVAC system:

  • When purchasing a high-efficiency system, your energy bills will be lower in the future.

  • You may be eligible for special offers from your local energy company.

  • Depending on the system, you may be eligible for HVAC rebates and tax credits.

  • Choose to replace your air conditioning unit and furnace simultaneously to save on labor and installation costs. 

Yes, it’s important to turn off your AC sometimes to give it a break and prevent it from freezing up. If your AC runs all the time, your system’s parts will wear down quicker, which may mean that you need to replace it sooner. Plus, using your AC constantly uses more electricity and leads to higher energy bills.

The Frederick, 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.