Furnace/HVAC Replacement Cost in Denver (2026)
Average cost in Denver
$6,800 – $16,200
$3 – $8 per sq ft
In Denver, the average is $11,764 and most projects cost between $6,800 and $16,200, or about $3 – $8 per sq ft. Prices are before tax and based on 8 sources.
Cost Breakdown
ItemizedFurnace and AC units (Ultra-Low NOx compliant)
45%
Installation, removal, and disposal
35%
Venting, gas lines, and duct tie-ins
15%
Denver mechanical and electrical permits
5%
Sales Tax at 2.9%
📋What's Included
ScopeTypically Includes
- Furnace or AC unit
- Thermostat
- Basic ductwork connections
- Refrigerant
- Labor & installation
- Old unit disposal
Typically Excludes
- Full ductwork replacement
- Zoning systems
- Smart home integration
- Permits & inspections
- Humidifier or air purifier
Based on a standard 2,000 sq ft home with existing ductwork.
🧮Estimate your project
LiveYour estimate in Denver
Likely range $6,800 – $16,200
- Equipment45%$5,294
- Labor35%$4,117
- Ductwork & Modifications15%$1,765
- Permits & Inspections5%$588
Furnace only
$11,764
AC only
$12,860
Furnace + AC
$18,336
Heat pump (full system)
$22,717
Calibrated to 8 researched sources for Denver. Before tax. Real quotes vary with site conditions.
📈Price Momentum
Year-over-year~1 year ago
$10,230
Today
$11,764
Furnace/HVAC Replacement in Denver is ↑ 15.0% compared to roughly a year ago — about $1,534 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top HVAC Replace Contractors in Denver
Verified providersThe Weather Changers Heating and Air Conditioning
10525 E 40th Ave #203, Denver, CO 80239, USA
1,371 reviews
Comfort Pros Heating and Air Conditioning
7270 Gilpin Way #220, Denver, CO 80229, USA
670 reviews
Controlling Systems Heating, AC, and Electrical Repair
7000 N Broadway #1-106, Denver, CO 80221, USA
640 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
Denver's 5,280-foot altitude reduces air density, requiring a Manual J load calculation to ensure proper sizing. Systems often need higher BTU ratings or specific altitude derating kits, which can add $200–$500 to the equipment cost compared to sea-level installations.
House Bill 23-1161, effective January 1, 2026, requires new gas furnaces to meet strict emission standards (<14 ng/J). This has led to a projected 15-40% increase in equipment costs as manufacturers phase out older, cheaper models in favor of high-efficiency or ultra-low NOx units.
Xcel Energy offers significant rebates, particularly for cold-climate heat pumps, which can reach up to $2,250 per ton. Additionally, the Colorado HEAR program provides up to $8,000 for income-qualified households, though some regional funds for 2026 were fully reserved by mid-year.
Yes, bundling a furnace and AC replacement typically saves Denver homeowners between $1,500 and $1,600 in labor costs compared to doing them separately, as the crew only needs to modify the plenum and electrical connections once.
📊Our Methodology
How we collect dataAggregated from 5+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: 1 months ago. Updates run weekly. All costs in USD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.