Window Replacement Contractors in Brentwood, CA
Brentwood has 7 window replacement contractors on active state license records. The oldest of them has held a window or glazing license since 1999, and the median listing has carried one for 9.6 years.
Licenses checked · California Contractors State License Board
3BIECC climate zone · ENERGY STAR South-Central zone
Climate and energy performance in Brentwood
San Francisco-Oakland-Fremont, CA piles up about 2,230 heating degree days in a normal year, against 1,345 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.
A contractor pulled from Brentwood's license record should be able to name the right U-factor for zone 3B before they ever measure an opening.
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 3.8 mi away.
9.6median years licensed
How long Brentwood's window contractors have been licensed
Brentwood counts 7 window replacement contractors in the state's own file, with the earliest entry dating to 1999.
43% of that list cleared a decade on their license before this page ever existed.
1 are new to the file within the last two years, working the same Brentwood streets as shops with decades on record.
Data: California Contractors State License Board license records, checked 2026-09-30.
7 window replacement contractors based in Brentwood
Listed A to Z by business name. No listed business paid for placement or position.
| Business | Category | License class | License no. | Status | Effective | Expires | ZIP | Official record |
|---|---|---|---|---|---|---|---|---|
| All - Pro Glass INC | Window and glass contractor | C-17 Glazing | 771241 | Active | Nov 8, 1999 | Mar 31, 2027 | 94513 | Verify license |
| Barnett Glass Company LLC | Window and glass contractor | C-17 Glazing | 1160114 | Active | Aug 26, 2026 | Aug 31, 2028 | 94513 | Verify license |
| Delta Windows | Window and glass contractor | C-17 Glazing | 934707 | Active | Jun 25, 2009 | Jun 30, 2027 | 94513 | Verify license |
| Faction Glass Solutions INC | Window and glass contractor | C-17 Glazing | 1023655 | Active | Feb 13, 2017 | Nov 30, 2026 | 94513 | Verify license |
| Goat Glass | Window and glass contractor | C-17 Glazing | 1099381 | Active | Dec 6, 2022 | Feb 28, 2027 | 94513 | Verify license |
| JPRL Glass | Window and glass contractor | C-17 Glazing | 1048173 | Active | Dec 20, 2018 | Dec 31, 2026 | 94513 | Verify license |
| Saboo INC | Window and glass contractor | B General Building / C-17 Glazing / C-36 Plumbing | 896479 | Active | May 15, 2007 | May 31, 2027 | 94513 | Verify license |
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?