Cost of replacement windows with installation — Longmont, CO
Last updated: September 24, 2026
What affects the price
Replacing your windows involves several moving parts that change the final bill. The biggest factor is the frame material, as vinyl tends to be more budget-friendly while wood or custom fiberglass options sit on the higher end. You also have to consider the glass packages—things like double versus triple panes or extra coatings for energy efficiency can shift the cost. The complexity of the installation matters, too, such as whether your frames need repairs or if you are switching from a standard window to a bay or bow style. Exact pricing confirmed free on the call.
About this service
Replacing windows involves removing old units and ensuring the new ones are airtight and level. The price changes based on whether you need a simple insert replacement or a full-frame tear-out. We assess your specific needs during a consultation to give you an accurate number. Exact pricing confirmed free on the call.
Frequently asked in Longmont
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What is the price for replacement windows in Longmont?
Also serving nearby: Boulder · Thornton · Westminster · Arvada · Greeley
More on this: ENERGY STAR windows — efficiency ratings.
Service area details
Serving all of Longmont — population 98,630; about 3,396 residents per square mile across 29.0 sq mi. ZIP codes covered include 80501, 80502, 80503, 80504.
Neighborhoods served in Longmont: Historic Downtown Longmont, The Peaks, Prairie Ridge, The Preserve, Old Town Longmont — and every surrounding area.
Areas we serve
Browse by state, then city.