Window Replacement Cost in Denver (2026)
Average cost in Denver
US$2,076 — US$14,000
US$600 — US$1,800 per sq ft
Cost Breakdown
ItemizedEnergy Star 2026 compliant units
65%
Professional installation & sealing
30%
Denver County building fees
2%
Old window removal & hauling
3%
Sales Tax at 2.9%
📋What's Included
ScopeTypically Includes
- Standard vinyl double-hung windows
- Removal of old windows
- Installation & insulation
- Interior trim
- Cleanup
Typically Excludes
- Custom or specialty shapes
- Triple-pane or premium glass
- Exterior trim or cladding
- Structural modifications
- Bay or bow windows
Based on replacing 10 standard-size windows with vinyl double-hung.
🧮Estimate Your Cost
InteractiveEstimated Cost
US$4,360 — US$6,540
Based on 8 sources and market data for Denver. Actual costs may vary depending on specific project requirements.
🏢Top Window Replace Contractors in Denver
Verified providersFive Seasons Windows and Doors
4731 S Santa Fe Cir #2, Englewood, CO 80110, USA
271 reviews
Zen Windows Denver
6105 S Main St Suite 200 Office 213, Aurora, CO 80016, USA
189 reviews
Window Doctor Of Colorado
4001 S Federal Blvd, Sheridan, CO 80110, USA
206 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
As of January 1, 2026, all new residential windows in Colorado must meet updated Energy Star standards, requiring a U-Factor of 0.22 or less and a Solar Heat Gain Coefficient (SHGC) of 0.17 or greater to handle the high-altitude climate.
On average, a single window unit installed in Denver costs between $600 and $1,200 for vinyl, while premium fiberglass or wood units can range from $1,500 to $1,800 per unit.
Yes, Denver County requires a building permit for window replacements. Fees typically range from $35 to $220 depending on the total project valuation, and work must be performed by a licensed contractor to meet strict local energy codes.
Homeowners in Denver can expect a return on investment (ROI) of approximately 70% to 85% due to the high demand for energy-efficient homes that can withstand extreme seasonal temperature fluctuations.
📊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: today. Updates run weekly. All costs in USD.