HVAC Replacement Cost in Denver, CO
Full HVAC system (AC + furnace) replacement in Denver averages $11,100 — 13% above the national average. Heat pumps: $11,600 (before $2,000 federal credit).
Denver — Full HVAC System
$11,100
AC + furnace, avg home
AC Only
$5,900
central air, 3-ton unit
Heat Pump System
$11,600
before $2,000 tax credit
HVAC Replacement Cost in Denver by System Type — 2026
| System Type | Cost in Denver | Note |
|---|---|---|
| AC only (no furnace) | $5,900 | central air conditioner, 3-ton |
| Gas furnace only | $5,000 | 80–96% AFUE, 80,000 BTU |
| Full HVAC (AC + furnace) | $11,100 | most common replacement |
| Heat pump system | $11,600 | heating + cooling; tax credit eligible |
| Mini-split (single zone) | $5,400 | ductless; per zone installed |
2026 Denver HVAC contractor survey. Includes equipment, labor, and standard installation materials. Ductwork replacement not included (+$3,000–$8,000 if needed).
Climate & System Guidance for Denver
Denver's cold winters make furnace efficiency critical. High-efficiency condensing furnaces (96%+ AFUE) pay back quickly in heating costs.
Recommended SEER
16 SEER2
Best System Type
Dual-fuel heat pump
Get Free HVAC Quotes in Denver
HVAC pricing varies $2,000–$4,000 between contractors for identical equipment in Denver. Always get 3 quotes before choosing.
Advertising disclosure: links are paid partnerships. Learn more.
FAQs — HVAC Cost in Denver
How much does HVAC replacement cost in Denver?
Full HVAC system replacement (AC + furnace) in Denver, CO costs $6,200–$20,400, with an average of $11,100 — 13% above the national average of $9,800. AC-only replacement runs $5,900. Heat pump systems cost $11,600 before the federal $2,000 tax credit.
What HVAC brands are best for Denver's climate?
Denver's cold winters make furnace efficiency critical. High-efficiency condensing furnaces (96%+ AFUE) pay back quickly in heating costs. For Denver, reliable mid-range brands include Carrier, Trane, and Lennox ($10000–$12800). Budget-friendly Goodman and Rheem ($7200–$9400) offer excellent value. Focus on SEER2 rating and installer reputation over brand prestige.
Do I need a permit for HVAC replacement in Denver?
Yes — Denver requires a mechanical permit for HVAC replacement, including like-for-like equipment swaps. Permits typically cost $75–$200 and require a post-installation inspection. A licensed CO HVAC contractor will pull the permit as part of the job. Never accept an offer to skip permits — it voids your homeowners insurance claim and can cause problems when selling your home.
Should I repair or replace my HVAC system in Denver?
The rule of thumb: if repair cost exceeds 50% of replacement cost ($5600 in Denver), replace it. Also consider age: if your AC is 15+ years old or furnace 20+ years old, replacement makes more financial sense. New 16 SEER2 systems typically save $200–$600/year in energy vs. a 10-year-old system — often paying back in 5–8 years.
Are heat pumps worth it in Denver?
Potentially — modern cold-climate heat pumps work down to -13°F. In Denver, a heat pump with a gas furnace backup (dual fuel) is often the most efficient combo. The federal $2,000 tax credit applies.