Google's Top-Rated Window Pros Near Maryland Heights, MO
Maryland Heights's 10 listings below come from Google Maps rather than a state license file. IECC climate zone 4A sets the energy bar for a Maryland Heights window job no matter which kind of list a contractor's name comes from. Checked October 2026.
Google Maps ratings checked · How we rank
4AIECC climate zone · ENERGY STAR North-Central zone
What Maryland Heights's climate means for your window spec
St. Louis, MO-IL piles up about 4,676 heating degree days in a normal year, against 1,528 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 3.5 mi away.
10 top-rated window replacement companies in and near Maryland Heights
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 and Doors | 200 | Window installation service | Earth City 63045 | Google reviews | |
| 3 | STL Windows Direct | 103 | Window installation service | Maryland Heights 63043 | Google reviews | |
| 4 | XL Building Products | 79 | Window supplier | St. Louis 63132 | Google reviews | |
| 5 | Performance Windows St. Louis | 78 | Window installation service | Hazelwood 63042 | Google reviews | |
| 6 | Renewal by Andersen | 2,361 | Window installation service | Bridgeton 63044 | Google reviews | |
| 7 | Window Nation | 1,482 | Window installation service | Bridgeton 63044 | Google reviews | |
| 8 | Window World of St. Louis | 1,003 | Window installation service | Earth City 63045 | Google reviews | |
| 9 | Universal Windows Direct of St Louis | 709 | Window installation service | St. Louis 63146 | Google reviews | |
| 10 | Arch City Window | 77 | Window installation service | St. Louis 63146 | 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?