HVAC System Replacement Cost in Colorado

Full HVAC system replacement in Colorado costs $11,500 to $25,000 in 2026, though city-to-city prices vary quite a bit. Heating drives most HVAC spending in Colorado: its larger communities average 5,885 heating and 707 cooling degree days a year.

HVAC System Replacement Prices in Colorado Cities

City	Estimate	Heating / cooling degree days
Denver	$11,600 to $25,200	5,764 / 813
Colorado Springs	$10,600 to $23,000	5,888 / 607
Aurora	$10,700 to $23,300	5,836 / 675
Fort Collins	$11,200 to $24,300	5,797 / 624
Lakewood	$11,300 to $24,600	5,913 / 633

From 2020 through 2025, NOAA recorded 1,607 winter storm and ice events, 10 heat events, 289 extreme cold events and 2,460 hail reports in Colorado. Those are the days when emergency HVAC calls pile up.

When Replacement Makes Sense

Both the heating and cooling equipment are 15 years old or more
Both units keep needing repairs
Some rooms are uncomfortable, and the energy bills are high
An old R-22 AC paired with an aging furnace

What Moves the Price

Furnace plus AC, or heat pump plus air handler
Efficiency ratings: SEER2, AFUE and HSPF2
Equipment sized to the house and climate
Duct repair or replacement
Thermostat and zoning upgrades
Permits and electrical work

Common Questions

How often should an HVAC system be replaced?

Most systems get replaced every 15 to 20 years. AC units and heat pumps usually wear out before gas furnaces do.

Can I replace only the AC and keep my furnace?

Yes, as long as the indoor coil and blower work with the new AC. A mismatched system loses efficiency and can void the warranty.

Other HVAC Prices in Colorado

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