Basement window installation — Renton, WA

Last updated: September 24, 2026

What affects the price

Replacing windows is a custom job, so your final bill depends on a few specific variables. The size and style of the window frames—like double-hung versus large picture windows—play a big role. Choosing energy-efficient glass coatings or adding decorative grids can also shift the total. We also look at the condition of your existing frames and whether the installation requires structural repairs to the surrounding wall. Your exact pricing is confirmed free on the call.

About this service

This service involves replacing small, outdated windows or cutting new openings to improve light and safety in lower levels. The job includes sizing the window for proper ventilation and installing drainage systems to keep water out. You need this when your basement feels dark or you need a secondary emergency exit. Exact pricing confirmed free on the call.

Frequently asked in Renton

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

All cities in Washington →

More on this: DOE window guidance — install vs replace decisions.

Service area details

Serving all of Renton — population 104,491; about 4,438 residents per square mile across 23.5 sq mi. ZIP codes covered include 98055, 98056, 98057, 98058, 98059.

Neighborhoods served in Renton: The Highlands, Bryn Mawr-Skyway, East Renton Highlands, Downtown Renton, North Renton — and every surrounding area.