Get a Denver-adjusted cost estimate for your hvac project. Our calculator starts from national averages and applies a local cost index for Denver, Colorado based on labor market data and cost-of-living indices.
Local context for Denver
Denver permits are issued by Community Planning and Development through the E-Permits portal (Accela), with Plan Review, Permits, and Inspections staff coordinating trade sign-offs. Denver adopted the 2024 International Building Code cycle and enforces the Energize Denver Ordinance, which requires buildings 25,000 square feet and larger to meet benchmarking and performance targets, plus a Green Buildings Ordinance cool-roof requirement triggered at roof replacement.
Permits filed through Denver Community Planning and Development · official portal
These figures are estimates derived from national cost data and a local cost-of-living multiplier. They are not quotes. For a firm price, use the calculator below and then get 3+ written bids from licensed local contractors.
Several local factors push Denver hvac pricing above or below the national baseline:
Do I have to put solar on my Denver building when I reroof?
Only buildings 25,000 square feet and larger fall under the Green Buildings Ordinance. Those owners can choose among solar, green roof, off-site green space, certification, or a fee. Single-family homes and smaller commercial buildings are not covered.
Why are Denver hail claims so common?
The Front Range is in one of the most active severe-hail zones in the country. Denver roofers frequently specify Class 4 impact-rated shingles, which carry insurance discounts with most carriers writing policies in Colorado.
Denver Community Planning and Development handles hvac permits in Denver. Fees, inspection schedules, and code amendments vary by project scope.
Visit the official Denver permit portal ↗For full system replacement in Denver, most homeowners pay between $5,750 and $14,375 in 2026. Our estimates cover equipment, labor, and permits for typical installations. The biggest accuracy variable is ductwork — if your existing ducts need repair or replacement, add $2,000-$7,000 to the estimate.
Permit requirements in Denver follow Colorado state building code plus local amendments. For most homeowners, 17-18 SEER2 offers the best balance of upfront cost and energy savings. In hot climates where AC runs 6+ months, consider 19-20 SEER2 for faster payback on the efficiency premium. See our Colorado permit guide for specifics.
In 2026, heat pumps are the better choice for most climates on operating cost alone. They heat AND cool (replacing both furnace and AC) and cost 30–50% less to operate. Note: the $2,000 federal Section 25C tax credit that incentivized heat pumps through 2025 expired December 31, 2025 under the One Big Beautiful Bill Act — systems placed in service in 2026 do not qualify. See our heat pump vs furnace comparison for the full math.
A straightforward equipment swap takes 1-2 days. If new ductwork is needed, expect 3-5 days. Switching system types (e.g., furnace to heat pump) takes 2-4 days.
Yes. HVAC replacement requires a mechanical permit in virtually all jurisdictions. Your contractor should handle this. Expect $150-$400 for the permit fee.
Only buildings 25,000 square feet and larger fall under the Green Buildings Ordinance. Those owners can choose among solar, green roof, off-site green space, certification, or a fee. Single-family homes and smaller commercial buildings are not covered.
The Front Range is in one of the most active severe-hail zones in the country. Denver roofers frequently specify Class 4 impact-rated shingles, which carry insurance discounts with most carriers writing policies in Colorado.