Window replacement cost calculator

Pick the number of windows and what you’re likely to choose. The estimate starts from 2026 national averages by material and style, then adjusts for glass, installation type, brand tier and local prices.

How the estimate works

1. Material average (This Old House 2026): vinyl $472, aluminum $453, composite $513, wood $544, fiberglass $564.
2. Style adjustment: each style’s average relative to the $517 overall average (e.g. double-hung $551, single-hung $474).
3. Glass: triple-pane adds about 15% ($609 vs $529 averages).
4. Full-frame installation adds labor for removing the old frame, insulating and trimming.
5. Brand tier: value lines and independent installers come in lower; premium lines and full-service brands often cost 1.5-3× more (Renewal by Andersen typically $1,500-$5,000 per window, per Fixr).
6. Local prices and second-story access.

We show a range of −25% to +35% around the typical figure, because real quotes vary that much.

Before you get quotes

• Count every window, including basement and bathroom windows.
• Note any that are rotted, very large or unusual shapes.
• Decide whether you want an insert or full-frame installation, or ask each installer to recommend and explain.

Then request free quotes and compare them with our quote checklist.