West · Climate zones 4–7
HVAC service in Colorado
Colorado's Front Range has cold, dry winters, sunny days with big temperature swings, and increasingly hot summers. Mountain towns are much colder, and altitude affects how gas appliances and equipment are set up.
- 387 ZIP codes covered
- 166 cities and towns
- Licensed contractors

Colorado HVAC at a glance
- Climate
- Cold (IECC zones 4–7)
- What it means
- Heating dominates. Furnace and boiler reliability, combustion safety and clear vents are the priorities, with summer AC still needed.
- Common systems
- Gas furnaces, Central AC, Evaporative coolers, Cold-climate heat pumps
- Coverage
- 387 ZIP codes in 166 cities and towns
- Region
- West
Homes & equipment
Heating and cooling in Colorado
Gas furnaces are standard in Denver, Colorado Springs and Fort Collins, with central AC now common in newer homes. Many older homes have evaporative coolers or no cooling at all. Cold-climate heat pumps are growing with state and utility incentives.
Altitude affects furnace combustion and equipment ratings, so installers must account for elevation.
Common problems
HVAC problems we see in Colorado
Altitude setup
Furnaces must be set up for elevation to burn cleanly and safely.
Dry air
Very low winter humidity makes whole-home humidifiers popular.
Hail damage
Front Range hailstorms damage outdoor coils and cabinets.
City guides
HVAC city guides in Colorado
Other Colorado areas in our network
Contractors in our network also cover Aurora, Littleton, Pueblo, Boulder, Fort Collins, Arvada, Englewood, Greeley, Westminster, Longmont, Broomfield, Golden, and 152 more communities. Enter your ZIP code in the request form to check yours.
Recommended
Services Colorado homeowners need most
Contractor licensing in Colorado
Colorado does not have a statewide HVAC license; cities and counties such as Denver license contractors and issue permits locally.
Utilities in Colorado
Xcel Energy serves much of the Front Range, with Colorado Springs Utilities and municipal and cooperative utilities elsewhere. Xcel, Black Hills Energy and Atmos supply natural gas.
FAQ
Colorado HVAC questions
Do heat pumps work in Denver?+
Cold-climate heat pumps can heat through most Denver winters, and many homes keep a furnace for the coldest days.
Why does altitude matter for my furnace?+
Thinner air changes combustion, so furnaces need high-altitude setup to burn efficiently and safely.
Other states in the West
HVAC help in Colorado
Call to be connected with a licensed HVAC contractor serving your ZIP code, or send a request online.