Window replacement cost — Boulder, CO

Last updated: September 24, 2026

What affects the price

Replacing windows involves several variables that change the final bill. The size and style of the window are big factors; fixed glass usually costs less than units that open, like double-hung or casement styles. Your choice of frame material—vinyl, wood, or fiberglass—also shifts the number significantly, as does the glass package you choose for energy efficiency. The complexity of the installation matters too, especially if there is existing rot or if the home needs structural work to fit new frames. Exact pricing confirmed free on the call.

About this service

The price for new windows typically fluctuates based on the number of units, the frame material, and the glass options you select. Features like triple-pane glass or custom exterior colors will move the price up, while standard configurations may keep it lower. Because every home has different opening sizes and structural needs, we look at the specific details of your project before providing a quote. Exact pricing confirmed free on the call.

Frequently asked in Boulder

Also serving nearby: Longmont · Westminster · Arvada · Thornton · Lakewood

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More on this: ENERGY STAR windows — efficiency ratings.

Service area details

Serving all of Boulder — population 105,898; about 3,937 residents per square mile across 26.9 sq mi. ZIP codes covered include 80301, 80302, 80303, 80304, 80305, 80306, 80307, 80308.

Neighborhoods served in Boulder: Downtown Boulder, Pearl Street, University Hill, Newlands, Gunbarrel, Flatirons — and every surrounding area.