Top-rated heating and air conditioning pros.

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

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Boulder, CO?

Select your specific project to find the pro for you.

TRUSTED BY BOULDER, CO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon450
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Boulder, 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 Boulder, 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 16, 2026

Find Heating and air conditioning pros in Boulder

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 Boulder, 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
Request Quote
Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
5.0(
73
)
Gas Furnace / Forced Air Heating System - InstallHeat Pump - Install or ReplaceBoiler or Radiator Heating System - Install or Replace+11 more

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Quality service and HVAC at a very affordable price! I couldn’t ask for more. I would highly recommend Behold for anyone needing HVAC repairs or replacement."
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 by48%of homeowners
Request Quote
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 Boulder, CO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1978

Free estimates

Emergency services offered

"Brian, the HVAC technician was professional, friendly and extremely knowledgeable, he provided a full estimate before starting the work and then performed the repair immediately. We were back up and running in minutes. Well Done 1 hr team."
57 neighbors recently requested a quote
Recommended by93%of homeowners
Request Quote
Avatar for Mountain Pro HVAC Services, LLC
Mountain Pro HVAC Services, LLC
5.0(
126
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair - For Business+4 more

Serving Boulder, 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%
Recommended by100%of homeowners
Request Quote
Avatar for Pacific Air, Inc.
Pacific Air, Inc.
4.8(
84
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceElectric Furnace / Forced Air Heating System - Repair+1 more

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Offers commercial services

"They did a great job installing a new thermostat & water heater at my house. The tech Ray was great to work with and I will be calling them with any further HVAC needs."
New inside set up
New Outside set up
Before inside set up
Before outside set up
Response time4 hrs
Response rate96%
3 neighbors recently requested a quote
Request Quote
A-Moonlight Heating & Air Conditioning
5.0(
52
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair

Serving Boulder, CO and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"Quickly worked out a long term problem from an incorrect furnace installation by another installer. Corrected the problem at a very fair price. They are now my preferred HVAC company."
Response time3 hrs
8 neighbors recently requested a quote
Recommended by96%of homeowners
Request Quote
Avatar for AT Mechanical LLC
AT Mechanical LLC
5.0(
10
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install - For BusinessElectric Furnace / Forced Air Heating System - Repair+6 more

Serving Boulder, CO and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"Highly recommended! Jason makes sure everything is right and also uses some technology for metrics. Most HVAC people I’ve dealt with, didn’t so, you had no baselines for references and just their word. My AC is fixed now and blows super cold!"
AT Mechanical LLC
AT Mechanical
AT Mechanical
AT Mechanical
AT Mechanical

+3

11 neighbors recently requested a quote
Request Quote
Avatar for Your Comfort Heating and Cooling
Your Comfort Heating and Cooling
5.0(
19
)
Ductless Mini-split A/C - Install or ReplaceDucts & Vents - Install or ReplaceGas Furnace / Forced Air Heating System - Repair+8 more

Serving Boulder, 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 time2 hrs
Response rate98%
8 neighbors recently requested a quote
Request Quote
Avatar for Steven & Sons Heating and Cooling
Steven & Sons Heating and Cooling
4.7(
118
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Boulder, CO and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

"Steven and Mario were hands down the best guys for the job. Very Professional and knowledgeable about what they are doing. I am going to recommend them to anyone I know that needs hvac work done.. It was a pleasure to have met them and will continue to use Steven and sons in the future 10/10!!"
Steven Brazing one of our larger projects
Brazing
Mariano Brazing
Furnace Loaded and ready for delivery
Cutting

+47

Response time4 hrs
Response rate93%
6 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 670
Heating and Air Conditioning questions, answered by experts

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

The cost to install a ductless mini-split AC system ranges from $2,000 to $14,000, depending on the type of unit, the number of zones or rooms, and the complexity of the installation. On the low end, a system for one or two zones in a single room costs around $2,000. Covering two zones for more rooms can cost between $6,000 and $8,000. For a larger multi-zone system to cover an entire home, costs can be $14,000. If you don’t already have an AC system in place, you may need to add the cost of permits, an electrician, and a concrete pad.

If both your furnace and AC unit are more than a decade old, it may be a good idea to replace both of them. However, your furnace can last up to three decades, and your air conditioner can typically last up to 15 years, so consulting with a pro before deciding to replace both of them is best. If it’s before that time limit for each, you can fix many problems with repairs or just replace one.

An HVAC system typically lasts between 10 and 30 years, with an average lifespan of 15 to 25 years. The longevity of the system is influenced by factors such as the quality of the unit, usage frequency, local climate, and how well it is maintained. Regular maintenance, including cleaning, filter replacements, and professional inspections, can help maximize its lifespan. Different components within the system have varying life expectancies. For example:

  • Furnaces: 15 to 30 years

  • Boilers: 20 to 35 years

  • Air Conditioners (AC units): 12 to 20 years

  • Heat Pumps: 10 to 20 years

  • Ductless Mini-Splits: 10 to 30 years

To make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

The Boulder, 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.

See all articles