Window Replacement Contractors in Rohnert Park, CA
Search below for a window contractor licensed to work in Rohnert Park, CA. About 60% of Rohnert Park's listings cleared a decade on their license before this page ever existed, worth weighing alongside price when you request quotes.
Licenses checked · California Contractors State License Board
3CIECC climate zone · ENERGY STAR South-Central zone
What Rohnert Park's climate means for your window spec
Sonoma County sees about 31.5 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 Rohnert Park window matter as much as the glass sitting in it.
So ask any Rohnert Park 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 7.5 mi away.
19median years licensed
The license record behind these listings
The median window license active in Rohnert Park has been on the books for 19 years.
A small slice, 1 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 Rohnert Park 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.
Window contractors licensed to work in Rohnert Park, CA
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 |
|---|---|---|---|---|---|---|---|---|
| Adam's Glass | Window and glass contractor | C-17 Glazing | 898164 | Active | Jun 9, 2007 | Jun 30, 2027 | 94928 | Verify license |
| American Window Systems | Window and glass contractor | C-17 Glazing | 1066478 | Active | Jun 25, 2020 | Jun 30, 2028 | 94927 | Verify license |
| Arch's Glass INC | Window and glass contractor | C-17 Glazing | 647838 | Active | Jun 15, 1992 | Jun 30, 2028 | 94928 | Verify license |
| D & D Glassworks INC | Window and glass contractor | C-17 Glazing | 904999 | Active | Oct 16, 2007 | Aug 31, 2027 | 94928 | Verify license |
| Greenrun Construction | Window and glass contractor | B General Building / C-17 Glazing | 716777 | Active | Dec 28, 1995 | Oct 31, 2026 | 94928 | Verify license |
| Integrity Glass | Window and glass contractor | C-17 Glazing | 1036272 | Active | Feb 27, 2018 | Feb 29, 2028 | 94927 | Verify license |
| Pennington Glass | Window and glass contractor | C-17 Glazing | 1051593 | Active | Mar 21, 2019 | Mar 31, 2028 | 94928 | Verify license |
| Redhawk Glass INC | Window and glass contractor | C-17 Glazing | 889310 | Active | Jan 10, 2007 | Sep 30, 2028 | 94927 | Verify license |
| Vella Glass INC | Window and glass contractor | C-17 Glazing | 849812 | Active | Nov 6, 2004 | Oct 31, 2028 | 94928 | Verify license |
| Westco Glass & Door INC | Window and glass contractor | C-17 Glazing | 1134203 | Active | Mar 11, 2025 | Mar 31, 2027 | 94927 | 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?