8 window replacement contractors Based in San Carlos
Window replacement contractors in San Carlos range from long-standing shops to 0 newer entrants licensed in the last two years. Every name below comes from the California license record, not a paid submission.
Licenses checked · California Contractors State License Board
3CIECC climate zone · ENERGY STAR South-Central zone
What San Carlos's climate means for your window spec
San Carlos sits in IECC climate zone 3C, the starting point for any code-minimum window performance here.
ENERGY STAR places San Mateo County in its South-Central zone for window certification.
Normal temperatures run 50°F in January and 69°F in July, so the glass package worth paying for in San Carlos 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 2.2 mi away.
12median years licensed
The license record behind these listings
The median window license active in San Carlos has been on the books for 12 years.
A small slice, 0 of them, sit inside a 90-day window for renewal as of our last check, which is ordinary license-cycle timing rather than a mark against the business.
Match the number on any San Carlos listing here against California's own lookup before you pick up the phone.
Data: California Contractors State License Board license records, checked 2026-09-30.
San Carlos window and glazing licenses on file
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 |
|---|---|---|---|---|---|---|---|---|
| Abstract Windows INC | Window and glass contractor | B General Building / C-17 Glazing | 967135 | Active | Oct 26, 2011 | Aug 31, 2028 | 94070 | Verify license |
| C B Showers | Window and glass contractor | C-17 Glazing | 987354 | Active | Oct 1, 2013 | Oct 31, 2027 | 94070 | Verify license |
| MJ Glass Hayward INC | Window and glass contractor | C-17 Glazing | 1050532 | Active | Feb 22, 2019 | Feb 28, 2027 | 94070 | Verify license |
| Next Electric | Window and glass contractor | B General Building / C-17 Glazing | 1016284 | Active | Jul 19, 2016 | Jul 31, 2028 | 94070 | Verify license |
| Pacific Sash & Design | Window and glass contractor | C-17 Glazing | 1001570 | Active | Feb 27, 2015 | Feb 28, 2027 | 94070 | Verify license |
| Royalite Installation INC | Window and glass contractor | C-17 Glazing | 1007842 | Active | Oct 1, 2015 | Oct 31, 2027 | 94070 | Verify license |
| Royalite Manufacturing INC | Window and glass contractor | C-17 Glazing | 730235 | Active | Dec 5, 1996 | Dec 31, 2026 | 94070 | Verify license |
| San Mateo Glass Company | Window and glass contractor | C-17 Glazing | 771391 | Active | Nov 12, 1999 | Nov 30, 2027 | 94070 | 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?