15 Best Heating Contractors in Denver

True Heating & Cooling handles heating and air-conditioning work across Denver and nearby communities, including repairs, replacements, heat-pump systems, furnace service, and maintenance. Its installation work includes ducted heat pumps paired with furnaces, with attention to system sizing, quieter operation, and year-round comfort.

The Weather Changers Heating and Air Conditioning serves Denver with air-conditioning repair, maintenance, installation, and broader heating and cooling support. The company’s approach is especially well suited to homeowners who want the problem explained clearly before deciding between repair, replacement, or ongoing service. Estimates can be discussed openly, and payment-plan options may help with larger work.

Comfort Pros Heating and Air Conditioning is a Denver HVAC contractor focused on furnaces, air conditioning, heat pumps, replacements, repairs, and indoor comfort. The company brings more than 40 years of combined industry experience and has served the local community for more than 15 years, with particular strength in heat-pump and furnace work.

Rock Plumbing, Heating & Air Conditioning serves Denver-area homes with HVAC, plumbing, and electrical work. Its heating and cooling service covers repairs, maintenance, system diagnostics, and installations, making the company relevant for both seasonal tune-ups and unexpected comfort problems.

Apex Clean Air AC & Heating Repair provides Denver homeowners with HVAC diagnostics, furnace and heat-pump installation , repairs, duct cleaning, and indoor air-quality support. Its diagnostic approach centres on identifying the underlying issue and explaining the options clearly, which is useful when airflow, comfort, or system performance has changed.

B&B Heating & Air Conditioning, Inc. handles heating, cooling, air quality, repairs, maintenance, installations, retrofits, and replacements across the Denver metro area. The company’s service style centers on clear explanations, honest recommendations, and careful troubleshooting rather than pushing unnecessary work. Technicians have been noted for diagnosing the real fault, correcting difficult system issues, and leaving installations running cleanly.

All A/C & Heating Solutions serves Denver and the surrounding metro with HVAC installation, repairs, maintenance, heating service, ductwork, thermostats, and related cooling work. The company is especially suited to urgent problems as well as full system replacements, with fast response and free estimates presented as part of its service model.

Controlling Systems Heating, AC, and Electrical Repair works on air-conditioning repairs, HVAC maintenance, heat pumps, electrical needs, and related installations in Denver. The team is comfortable with more involved projects, including correctly sizing mini-split systems, adding backup furnaces, and servicing equipment with limited manufacturer guidance.

Lou’s Heating & Cooling is a family-owned HVAC contractor serving Denver and the surrounding metro area with AC repair, furnace repair, swamp-cooler service , maintenance, installation, and emergency assistance. The company’s owner-operated model keeps the service personal, with direct explanations, prompt communication, and a diagnosis-first approach rather than automatically steering homeowners toward replacement.

Swan Plumbing, Heating & Air of Denver provides HVAC installation, repairs, maintenance, and plumbing support. Its technicians are recognized for explaining options clearly, working efficiently, and keeping the job site orderly, from individual air-conditioning fixes to full heat-pump and furnace replacements.

Roots Heating & Air is a Denver HVAC contractor focused on furnace and air-conditioning installation, replacement, repair, maintenance, and emergency service. The company is a strong fit for homeowners comparing major system work, with thorough estimates, clear explanations of available options, and crews experienced in coordinating heating, cooling, electrical adjustments, and related equipment.

Major Heating and Air Conditioning serves Denver with residential and commercial HVAC repair, installation, maintenance, air conditioning, heating, and geothermal solutions. Its commercial capabilities extend to complex systems such as rooftops, chillers, boilers, cooling towers, controls, and building automation, making the company especially relevant for facility managers and larger properties.

Veteran Heating, Cooling, Plumbing & Electric provides Denver-area HVAC, plumbing, electrical, furnace, air-conditioning, and heat-pump services. Its broader trade coverage is useful when a home project crosses systems, from a new heat-pump and furnace installation to gas-line work, water-heater concerns, sewer repairs, or electrical upgrades.

Mountain Breeze Heating & Air is a family-owned Denver HVAC contractor serving heating, cooling, boilers, furnaces, heat pumps, water heaters, repairs, installations, maintenance, and indoor-air-quality needs. The team works with both homeowners and businesses, tailoring recommendations to Colorado’s changing seasons and the demands of each property.

Lakeside Heating & Air Conditioning provides Denver-area heating and cooling repairs, installations, maintenance, and heat-pump work. The company’s diagnostic approach is a clear differentiator: technicians have identified simple wiring and breaker faults where other assessments pointed toward costly compressor replacement, helping homeowners avoid unnecessary system changes.