6 window replacement contractors Based in Downey
Downey has 6 window replacement contractors on active state license records. The oldest of them has held a window or glazing license since 1962, and the median listing has carried one for 28 years.
Licenses checked · California Contractors State License Board
3BIECC climate zone · ENERGY STAR South-Central zone
Climate and energy performance in Downey
Los Angeles County sees about 13.3 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 Downey window matter as much as the glass sitting in it.
So ask any Downey 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 6.7 mi away.
28median years licensed
How long Downey's window contractors have been licensed
Downey counts 6 window replacement contractors in the state's own file, with the earliest entry dating to 1962.
67% of that list cleared a decade on their license before this page ever existed.
0 are new to the file within the last two years, working the same Downey streets as shops with decades on record.
Data: California Contractors State License Board license records, checked 2026-09-30.
6 window replacement contractors based in Downey
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 |
|---|---|---|---|---|---|---|---|---|
| Compton Glass INC | Window and glass contractor | C-17 Glazing | 248784 | Active | Jul 10, 1967 | Dec 31, 2027 | 90241 | Verify license |
| E Z Glass | Window and glass contractor | C-17 Glazing | 853385 | Active | Jan 21, 2005 | Jan 31, 2027 | 90242 | Verify license |
| Galvez Glass Service | Window and glass contractor | C-17 Glazing | 671648 | Active | May 20, 1993 | May 31, 2027 | 90242 | Verify license |
| Harris Glass CO | Window and glass contractor | C-17 Glazing | 209910 | Active | Jul 1, 1962 | Jun 30, 2028 | 90241 | Verify license |
| Rightway Glazing INC | Window and glass contractor | C-17 Glazing | 1114320 | Active | Dec 26, 2023 | Dec 31, 2027 | 90241 | Verify license |
| Wgcustom Glazing LLC | Window and glass contractor | C-17 Glazing | 1080162 | Active | Aug 23, 2021 | Jan 31, 2028 | 90241 | 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?