Google's Top-Rated Window Pros Near St. George, UT
St. George's 10 listings below come from Google Maps rather than a state license file. IECC climate zone 3B sets the energy bar for a St. George window job no matter which kind of list a contractor's name comes from. Checked October 2026.
Google Maps ratings checked · How we rank
3BIECC climate zone · ENERGY STAR South-Central zone
Climate and energy performance in St. George
IECC rates St. George's climate zone as 3B, the starting point for any code-minimum window performance here.
ENERGY STAR places Washington County in its South-Central zone for window certification.
Normal temperatures run 41°F in January and 87°F in July, so the glass package worth paying for in St. George isn't the same one that pencils out two zones over.
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 3.3 mi away.
Google's top window installers serving St. George, UT
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 | Glass Doctor of St. George | 187 | Window installation service | St. George 84790 | Google reviews | |
| 2 | Sun City Glass | 94 | Window installation service | St. George 84770 | Google reviews | |
| 3 | Epic Windows + Doors | 27 | Window installation service | St. George 84770 | Google reviews | |
| 4 | Dixie Glass | 29 | Window installation service | Washington 84780 | Google reviews | |
| 5 | Jones Paint & Glass Inc | 842 | Window installation service | St. George 84790 | Google reviews | |
| 6 | JKR Windows | High Performance Replacement Windows | 2,225 | Window installation service | St. George 84770 | Google reviews | |
| 7 | Nexa home improvement | 11 | Window installation service | St. George 84770 | Google reviews | |
| 8 | DaBella | 742 | Window installation service | St. George 84770 | Google reviews | |
| 9 | NTY Windows | 5 | Window installation service | St. George 84790 | Google reviews | |
| 10 | St George Windows Doors & More | 10 | Window supplier | Hurricane 84737 | 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?