Top-Rated Window Replacement Companies in La Verne, CA
La Verne 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 La Verne, CA and ranked the ones that qualified by rating and review count. 10 made the cut here.
Google Maps ratings checked · How we rank
3BIECC climate zone · ENERGY STAR South-Central zone
Climate and energy performance in La Verne
Los Angeles-Long Beach-Anaheim, CA piles up about 1,457 heating degree days in a normal year, against 1,495 on the cooling side of the ledger.
That's the load an ENERGY STAR-rated window in the South-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 2.7 mi away.
Google's top window installers serving La Verne, CA
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 | Glendora Window Inc. aka Glendora Window and Screen | 57 | Window installation service | La Verne 91750 | Google reviews | |
| 2 | La Verne Glass &Screen | 47 | Window installation service | La Verne 91750 | Google reviews | |
| 3 | M C Glass | 17 | Window installation service | Upland 91786 | Google reviews | |
| 4 | Blackbird Building Supply | 7 | Window supplier | La Verne 91750 | Google reviews | |
| 5 | SwiftLift Doors Pomona | 9 | Window supplier | Pomona 91767 | Google reviews | |
| 6 | J. R. Door & Window Inc | 64 | Window installation service | Upland 91786 | Google reviews | |
| 7 | Fast Windows And More, Inc | 59 | Window supplier | Pomona 91768 | Google reviews | |
| 8 | NagcoGlass | 15 | Window installation service | Pomona 91767 | Google reviews | |
| 9 | Koach's Windows & Doors | 7 | Window supplier | San Dimas 91773 | Google reviews | |
| 10 | Door and Glass Unique | 23 | Window installation service | Pomona 91768 | 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?