Replacement windows installed cost — St. Louis, MO

Last updated: September 24, 2026

What affects the price

Replacing your windows involves a few variables that change the final bill. The biggest factor is the frame material, such as vinyl, wood, or fiberglass, which all carry different price points. You also have to consider the glass package—like double versus triple pane—and whether you need specialized coatings for energy efficiency. The complexity of the installation matters, too; if your openings are non-standard or require structural repairs, labor costs will climb. We keep things simple: exact pricing confirmed free on the call.

About this service

The cost of having new windows installed covers the product itself and the labor to secure them into your home. The price is influenced by the type of window—such as double-hung or slider—and any extra features like grids or specialized glass. We will assess your home to give you a firm number. Exact pricing confirmed free on the call.

Frequently asked in St. Louis

Also serving nearby: O Fallon · Springfield · Columbia · Champaign · Peoria

All cities in Missouri →

More on this: ENERGY STAR windows — efficiency ratings.

Service area details

Serving all of St. Louis — population 281,754; about 4,565 residents per square mile across 61.7 sq mi.

Neighborhoods served in St. Louis: Central West End, The Hill, Tower Grove South, Soulard, Carondelet — and every surrounding area.