Cost for replacement windows — Seattle, WA

Last updated: September 24, 2026

What affects the price

Replacing windows is a custom project, so the final total depends on a few specific variables. The size and style of the frames you choose—like double-hung versus casement—will change the materials cost. We also look at the glass packages, such as double or triple-pane options, and any energy-efficient coatings that help with insulation. The number of windows being replaced and the current condition of your home’s exterior framing play a role in the labor needed. Exact pricing confirmed free on the call.

About this service

Calculating the cost involves looking at the number of windows, the style of operation—like double-hung or sliding—and the added features like argon gas fills. Upgrading to higher-performing materials increases the upfront cost but can offer better insulation for your home. We provide a transparent breakdown so you know exactly what you are paying for.

Frequently asked in Seattle

Also serving nearby: Kirkland · Bellevue · Renton · Kent · Federal Way

All cities in Washington →

More on this: ENERGY STAR windows — efficiency ratings.

Service area details

Serving all of Seattle — population 755,078; about 8,989 residents per square mile across 84.0 sq mi. ZIP codes covered include 98101, 98102, 98103, 98104, 98105, 98106, 98107, 98108.

Neighborhoods served in Seattle: Ballard, Capitol Hill, Fremont, Queen Anne, Green Lake — and every surrounding area.