Top Rated Heating & Air Conditioning Contractors Serving Denver County, CO
Last Updated May 15, 2026
2797 Review Ratings and 5 Heating & Air Conditioning Companies Evaluated.
These companies have passed our Preliminary 5-step rating process.
Custom HPACES
Custom HPACES offers a wide range of heating and air conditioning services to residential and commercial clients throughout Denver County. The company has the in-house capabilities to work on everything from water heater installations and air conditioner repairs to HVAC upgrades and furnace repairs, and it customizes each project to meet the client’s budget requirements.
Services
Heating and Air Conditioning including commercial air conditioning, ductless heating and cooling systems, furnace repair, heat pump repair, heating, ac Installation & Replacement, Ductless Mini-Split Installation, Evaporative Cooler Installation, Thermostat Repair & Installation, Boiler Installation & Replacement, Furnace Installation & Replacement, Heat Pump Installation, Water Heater Repair and Replacement.
Coverage Areas
The Denver Area, including Denver County—key cities including Dupont, Westminster, Commerce City, Eastlake, Brighton, Littleton, Aurora, Englewood, Golden and Buffalo Creek
- 12445 E 39th Ave Unit 307
- Denver, CO 80239
Lakeside Heating & Air Conditioning
Lakeside Heating & Air Conditioning offers a variety of heating and air conditioning services to residential and commercial clients throughout Denver County. The company has the training and equipment to work on everything from cooling system installations and ductwork to air conditioner repairs and A/C tune-ups, and its employees focus on delivering first-rate workmanship on every project.
Services
Remodeling Contractors including bathroom remodel, bathroom renovations, bathtub replacement, custom home remodeling, garage remodel, hvac services, cooling, ac repair, ac installation, ac maintenance, heating, furnace repair, furnace installation, heat pumps & mini-splits, heat pump installation, mini-split installation, other services and indoor air quality.
Coverage Areas
The Denver Area, including Denver County — key cities including Arvada, Bow Mar, Broomfield, Centennial, Cherry Creek, Edgewater, Englewood, Golden, Highlands Ranch, Jefferson County, Lafayette, Lakewood, Leyden Rock, Littleton, Louisville, Northglenn, Sheridan, Thornton, Westminster and Wheat Ridge.
- 6260 W 52nd Ave Ste 116
- Arvada, CO 80002
Denver General Plumbing Heating Air
Denver General Plumbing Heating Air provides residential and commercial clients in Denver County with a wide variety of plumbing services. The company works on everything from gas pipe repairs and toilet repairs to water heater installations and plumbing inspections, and its technicians are known for their quality workmanship and honesty.
Services
Plumbing including gas pipe repair, water lines, a/c repair, boiler services, emergency services, backflow services, gas furnace installation, pipe repair, water heater installation, heater repair, electric furnace repair, gas furnace repair, electric furnace installation, gas line services and leak detection.
Coverage Areas
The Denver Area, including Denver County—key cities including Aurora, Littleton, Westminster, Englewood, Arvada, Wheat Ridge, Commerce City, Thornton, Lakewood and Montbello.
- 700 Colorado Blvd Ste 724
- Denver, CO 80206
Finney Mechanical
Finney Mechanical offers a variety of heating and air conditioning services to residential and commercial clients throughout Arapahoe County. The company has the training and equipment to work on everything from HVAC troubleshooting and water heater repairs to thermostat installations and ventilation systems, and its employees focus on delivering first-rate workmanship on every project.
Services
Heating and Air Conditioning including air conditioner repair, air conditioning, commercial air conditioning, ductless heating and cooling systems, furnace repair, hvac replacement and hvac system repair.
Coverage Areas
The Denver Area, including Arapahoe County—key cities including Littleton, Aurora, Englewood, Deer Trail, Byers and Watkins.
- 5890 Washington St Unit 4
- Denver, CO 80216
Mercury Heat and Air
Mercury Heat and Air provides a variety of heating and air conditioning services for residential and commercial throughout the Denver area. The company is qualified to work on everything from heating system installations and energy-efficient HVAC work to AC tune-ups and mini splits, and its employees ensure safety and transparent pricing on every job.
Services
Heating and Air Conditioning including ac tune ups, air conditioner repair, air conditioning, commercial air conditioning, ductless heating and cooling systems, hvac installation or replacement, hvac system maintenance and hvac system repair.
Coverage Areas
The Denver Area, including Denver County—key cities including Dupont, Westminster, Commerce City, Eastlake, Brighton, Littleton, Aurora, Englewood, Golden and Buffalo Creek.
- 5082 E Hampden Ave
- Denver, CO 80222
These companies have earned our Pre-Qualified Rating. Learn more about our 5-step process.
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ONE AllRatings star score of 4.5.
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Verified active and in good standing (when required).
State license bureau data is accessed and analyzed.
Rating Step 3 = Background
Satisfactory status.
Internet searches were performed seeking disqualifying information on each company.
Rating Step 4 = Complaints
Satisfactory status.
Complaint bureau records have been searched seeking disqualifying information on each company.
Search Better Business BureauRating Step 5 = Specialist
Satisfactory status.
Our research specialist verifies all ratings steps have been passed and creates a final report and profile.
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