How Much Does Window Replacement Cost?
In 2026, the average cost to replace a window is $500–$1,500 per window fully installed, including labor. For a typical home with 12 windows, total replacement costs run $6,000–$18,000. Bay windows, picture windows, and specialty shapes cost more — often $1,500–$4,000 each.
New windows reduce energy bills by 10–25% in homes with old single-pane glass, pay for themselves over time, and improve comfort by eliminating drafts and condensation.
Cost by Window Type
| Window Type | Cost Per Window (Installed) |
|---|---|
| Single-Hung / Double-Hung | $600 – $1,200 |
| Casement | $800 – $1,500 |
| Sliding Window | $550 – $1,100 |
| Picture Window | $800 – $2,500 |
| Bay or Bow Window | $1,500 – $4,500 |
| Skylight | $1,000 – $3,500 |
| Egress Window | $2,500 – $5,000 |
Energy-efficient window tax credits (IRA 25C) of up to $600/year apply to qualifying 2026 installations — significantly improving ROI in high-energy-cost states.
Cost by Frame Material
| Frame Material | Cost Per Window | Lifespan |
|---|---|---|
| Vinyl | $450 – $1,100 | 20–40 years |
| Wood | $800 – $2,000 | 30+ years |
| Aluminum | $400 – $1,200 | 20–30 years |
| Fiberglass | $800 – $1,800 | 30–50 years |
| Composite (wood/vinyl) | $700 – $1,500 | 25–40 years |
Single-Pane vs. Double-Pane vs. Triple-Pane
Single-pane windows are found in older homes and are extremely inefficient. If you have single-pane windows, replacement pays for itself faster than almost any other upgrade.
Double-pane windows with low-E coating and argon fill are the standard today. They dramatically reduce heat transfer and are the sweet spot of cost vs. performance for most climates.
Triple-pane windows add another layer of insulation and are worth the extra cost in very cold climates (Minnesota, Wisconsin, New England). In mild climates, the added cost rarely pays off.
Insert vs. Full-Frame Replacement
Insert (pocket) replacement fits a new window unit into the existing frame — faster, less disruptive, and typically $200–$400 less per window. Best when the existing frame is structurally sound and square.
Full-frame replacement removes everything down to the rough opening and installs a new frame. Required when the frame is rotted, out of square, or you want to change window size. Adds $200–$400 per window but allows full air sealing and insulation access around the frame.
Frequently Asked Questions
Is it worth replacing all windows at once?
Yes — replacing all windows in one project saves on mobilization costs (setup, scaffolding, caulking) and often gets you a volume discount from the contractor. If budget is a concern, prioritize south- and west-facing windows first for the highest energy savings.
How long does window replacement take?
A full home replacement of 12 windows typically takes 1–2 days for an experienced crew. Individual window replacements take 30–60 minutes each.
⚡ Energy Tip
Look for ENERGY STAR-certified windows with a U-factor below 0.30. In most states, new energy-efficient windows qualify for federal tax credits of up to $600 per year under the Inflation Reduction Act.