Top-Rated Window Replacement Companies in St. Louis, MO
St. Louis hasn't cleared the bar this site needs from a state license file to earn its own license page. So we searched Google Maps for window replacement company listings in St. Louis, MO and ranked the ones that qualified by rating and review count. 9 made the cut here.
Google Maps ratings checked · How we rank
4AIECC climate zone · ENERGY STAR North-Central zone
Climate and energy performance in St. Louis
St. Louis, MO-IL piles up about 4,292 heating degree days in a normal year, against 1,769 on the cooling side of the ledger.
That's the load an ENERGY STAR-rated window in the North-Central zone is built to handle.
Data: U.S. EPA / DOE, ENERGY STAR, ENERGY STAR Version 7.0 Climate Zones by County/ZIP (Windows, Doors, and Skylights) (V7.0); Pacific Northwest National Laboratory (DOE Building America), Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) (2021 IECC), from the nearest NOAA station 1.5 mi away.
Google's top window installers serving St. Louis, MO
Ranked by Google rating weighted against how many people left one, so a perfect score from a handful of reviewers never outranks a strong average built on hundreds. That ranking is not a license check; call the state directly and ask for the contractor's license or registration number.
| Rank | Business | Google rating | Reviews | Category | Area | Google Maps listing |
|---|---|---|---|---|---|---|
| 1 | Chaney Windows And Doors | 542 | Window installation service | Maryland Heights 63043 | Google reviews | |
| 2 | STL Windows Direct | 103 | Window installation service | Maryland Heights 63043 | Google reviews | |
| 3 | Glass Doctor of Greater St. Louis | 1,331 | Glass repair service | St. Louis 63119 | Google reviews | |
| 4 | Empire Supply Co | 57 | Window supplier | St. Louis 63143 | Google reviews | |
| 5 | Missouri Glass Company | 35 | Glass repair service | St. Louis 63104 | Google reviews | |
| 6 | Gravois Glass | 199 | Window installation service | St. Louis 63116 | Google reviews | |
| 7 | Viviano Windows & Door | 67 | Window installation service | Webster Groves 63119 | Google reviews | |
| 8 | Winco Window Company | 34 | Aluminum window | St. Louis 63130 | Google reviews | |
| 9 | Penny Window | 211 | Window supplier | St. Louis 63136 | Google reviews |
Questions to ask before you sign
- How long have you held your state license, and can I see the number?
- Is this a full-frame replacement or an insert into my existing frame, and why that one?
- Who pulls the permit, and does this change trigger an egress check on a bedroom window?
- What flashing and sill pan will you use, and in what order do you install them?
- If my home was built before 1978, is your crew lead-safe certified for this job?
- What's the completion date in writing, and what happens if the schedule slips?