Window Replacement Cost Calculator: 2026 Price per Window
Replacement windows cost $450-$1,500 per window installed in 2026, with whole-house projects averaging $8,000-$22,000. This guide gives you the real 2026 price per window by material — vinyl, fiberglass, wood-clad — plus what full-frame replacement really adds.
Part of these guide hubs
Window replacement is a top-5 exterior ROI project every year — and 2026 pricing has firmed up as vinyl prices stabilized and fiberglass frames dropped 6-8% from 2025 peaks.
2026 Cost per Window (Installed)
- Vinyl double-hung: $450-$850 installed
- Vinyl slider: $400-$800
- Vinyl casement: $600-$1,050
- Fiberglass: $850-$1,400
- Wood-clad (Andersen 400, Pella Lifestyle): $1,100-$1,900
- Bay / bow window: $2,200-$4,500
Insert vs. Full-Frame Replacement
Insert (retrofit) replacement drops a new window into the existing frame — cheapest and fastest at $150-$275 labor per window. Full-frame replacement tears out to the studs and is required when sills are rotted or the frame is out of square. Budget an extra $200-$400 per window for full-frame.
The Formula
Total = (Unit price + Install labor + Full-frame add-on) × Number of windows × Regional cost index
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Open the Window Replacement CalculatorWritten by Javed Niamat
Javed Niamat is a home renovation cost analyst and the founder of RenoCalc Hub. He tracks US remodeling labor rates, material pricing and contractor bids across all 50 states, and builds the free calculators behind every guide on this site.
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