How to use the window replacement cost calculator
- Count the windows. Count each window you want to replace. A pair of windows in one frame (a mulled unit) counts as two.
- Choose the type and frame. Double-hung vinyl is the most common and the base price. Fiberglass, wood and clad windows cost more.
- Choose the installation. An insert (pocket) window fits inside the old frame and is the cheapest. Full-frame replacement removes everything down to the studs, which is needed when the frame is rotten, and adds about $150 to $350 per window.
- Add glass and floors. Triple pane and impact glass cost more. Windows on upper floors need ladders or scaffolding and usually cost about 10% more.
Average window replacement cost by type
| Window type (vinyl) | Installed price per window |
|---|---|
| Single-hung | $350 - $750 |
| Double-hung | $450 - $900 |
| Sliding | $400 - $850 |
| Casement | $550 - $1,100 |
| Picture (fixed) | $500 - $1,200 |
| Bay or bow | $2,000 - $5,000 |
Typical national ranges for standard sizes in 2025-2026. Large, custom-shaped and specialty windows can cost much more.
Frame material multipliers
| Frame | Compared with vinyl | Notes |
|---|---|---|
| Vinyl | 1.0× | Low maintenance, best value |
| Aluminum clad wood | about 1.3× | Wood inside, weatherproof outside |
| Fiberglass | about 1.35× | Strong, stable, paintable |
| Wood | about 1.6× | Classic look, needs painting |
Worked example
Replacing 10 double-hung vinyl windows on the first floor with insert installation and double pane low-E glass costs about $4,500 to $9,000, or about $675 per window on average. The same 10 windows installed full-frame add about $2,500, for a typical total near $9,250.
Ways to save on replacement windows
- Replace the worst windows first (drafty, fogged or rotten) instead of the whole house at once.
- Stick to standard sizes; custom sizes and shapes cost more.
- Ask about off-season pricing in late fall and winter.
- Check local utility rebates for ENERGY STAR windows.
Planning more projects? See the roof replacement cost calculator and the HELOC calculator to see how a home equity line could fund them.
Frequently asked questions
How much does it cost to replace 10 windows?
Ten standard double-hung vinyl windows with insert installation usually cost about $4,500 to $9,000 installed. Wood or fiberglass windows and full-frame installation can push it to $10,000 to $15,000 or more.
What is the cheapest way to replace windows?
Vinyl insert windows in standard sizes are the cheapest. The installer keeps the existing frame and trim and fits the new window inside it.
What is the difference between insert and full-frame replacement?
An insert window slides into the old frame, so it is faster and cheaper but slightly reduces the glass area. Full-frame replacement removes the whole old window down to the studs, which lets the installer fix rot and add new insulation and flashing.
Are triple pane windows worth it?
In cold climates triple pane windows cut heat loss and noise, but they cost about 15% more and take longer to pay back. In mild climates double pane low-E glass is usually enough.
How long does it take to replace windows?
A crew typically installs 8 to 15 insert windows in a day. Full-frame replacement takes about twice as long.
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Last updated October 2026.