Start with your house
Brick, pre-war, maybe historic. More than half the City was built before 1940, in brick, and eighteen neighborhoods sit under a historic review whose approved window list has no vinyl product on it. We install from the City's approved list and handle the review. → Historic district windows · The brick guide
A 1950s–70s ranch with metal windows. Florissant, Ferguson, Affton, Crestwood: steel casements and aluminum sliders that conduct January through the wall. Full-frame replacement is the biggest comfort upgrade in the region. → Full-frame replacement
A 1990s house with fogged vinyl. St. Charles County, West County, Oakville: builder windows at the end of their seals. The simplest job in the metro, and the one most likely to be oversold at an in-home appointment. → Window replacement · The cost guide
Storm damage. After the March 2024 hail and the May 2025 tornado, a lot of St. Louis windows are being replaced on claims. We document what the adjuster needs and tell you which windows were storm damage and which were already failing. → Storm damage window replacement
How buying windows online works here
- Estimate online. Count, style, material, wall type, house era → a range, with no contact details.
- Shortlist. Read the guides, pick glass and frame, decide insert or full-frame. Nobody calls.
- Send photos and rough sizes. Ten minutes with a phone and a tape.
- One measure visit. The only step that cannot happen online. Every opening measured, every sill probed, the wall and the district confirmed.
- Written quote, then order. Every opening, method, product and price on paper. Good for thirty days.
Why start online?
Because as of October 2026 not one St. Louis window company publishes a price, and several print that their discount is "valid only at the initial in-home estimate." The appointment is designed so you cannot compare. Starting online puts the budget first, the product second and the visit last — and it means the one visit we make is a measurer with a tape, not a closer with a tablet.
What St. Louis changes about a window job
- The wall. Brick masonry openings have no nailing fin; the install is different and so is the price. → Insert vs. full-frame
- The rules. No permit for same-size replacement in the City; a permit at four or more windows in unincorporated St. Charles County; CRO review in eighteen City districts. → Permits · Historic district rules
- The lead. 86% of the City and 69% of the County predates 1980; window replacement is never exempt from lead-safe rules on those houses. → Lead-safe replacement
- The glass. A true mixed climate: 4,433 heating degree days, 1,713 cooling. North-Central ENERGY STAR, not Northern, not Southern. → Performance ratings
- The credit. There is no federal window tax credit in 2026, whatever the brochure says. → Tax credits and rebates
Services
Window replacement · Full-frame replacement · Historic district windows · Energy-efficient windows · Storm damage window replacement · Window repair
The complete St. Louis buying guide
House era, wall, district, lead, permits, glass, cost, process — one page, in the order the decisions come up. Read the complete guide · All guides
Where we work
St. Louis City and County, St. Charles, Jefferson and Franklin counties, and Madison and St. Clair counties in Illinois. Deep pages for the places where the work is different: the City · Kirkwood, Webster Groves, University City · Florissant and North County · St. Charles County · All locations
About St. Louis Online Windows — who we are and how the work is delivered.
See your range now
Instant estimate — no email, no phone, under a minute. Or get a quote and we will set the measure visit.
