Top-Rated Window Replacement Companies in Claremont, CA
Claremont's 10 listings below come from Google Maps rather than a state license file. IECC climate zone 3B sets the energy bar for a Claremont 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
What Claremont's climate means for your window spec
Los Angeles County sees about 14.5 inches of precipitation and 0.0 inches of snow in a normal year.
Weather at that level is one more reason the flashing and sill pan under a Claremont window matter as much as the glass sitting in it.
So ask any Claremont contractor how they handle both, not just which brand they carry.
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 4.2 mi away.
10 top-rated window replacement companies in and near Claremont
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 | SoCal Window Pros | 203 | Window installation service | Montclair 91763 | Google reviews | |
| 2 | Top of The Trades Windows & Doors Installation | 83 | Window installation service | Upland 91786 | Google reviews | |
| 3 | Hometime Windows & Doors | 268 | Window installation service | Upland 91786 | Google reviews | |
| 4 | Payless Glass - Auto/Commercial/Residential | 434 | Window installation service | Pomona 91767 | Google reviews | |
| 5 | Low Price Auto Glass & Tint | 104 | Window installation service | Pomona 91766 | Google reviews | |
| 6 | Glendora Window Inc. aka Glendora Window and Screen | 57 | Window installation service | La Verne 91750 | Google reviews | |
| 7 | La Verne Glass &Screen | 47 | Window installation service | La Verne 91750 | Google reviews | |
| 8 | M C Glass | 17 | Window installation service | Upland 91786 | Google reviews | |
| 9 | J. R. Door & Window Inc | 64 | Window installation service | Upland 91786 | Google reviews | |
| 10 | Fast Windows And More, Inc | 59 | Window supplier | 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?