Window Replacement Contractors in Lancaster, CA
Lancaster has 6 window replacement contractors on active state license records. The oldest of them has held a window or glazing license since 1965, and the median listing has carried one for 26 years.
Licenses checked · California Contractors State License Board
3BIECC climate zone · ENERGY STAR South-Central zone
What Lancaster's climate means for your window spec
Lancaster sits in IECC climate zone 3B, the starting point for any code-minimum window performance here.
ENERGY STAR places Los Angeles County in its South-Central zone for window certification.
Normal temperatures run 45°F in January and 82°F in July, so the glass package worth paying for in Lancaster 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 3.9 mi away.
26median years licensed
The license record behind these listings
The median window license active in Lancaster has been on the books for 26 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 Lancaster 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 Lancaster, 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 |
|---|---|---|---|---|---|---|---|---|
| 316 Windows & Door Installers | Window and glass contractor | C-17 Glazing | 1153094 | Active | Apr 6, 2026 | Apr 30, 2028 | 93536 | Verify license |
| All Glass & Plastics INC | Window and glass contractor | B General Building / C-17 Glazing | 236685 | Active | Aug 2, 1965 | Jan 31, 2028 | 93534 | Verify license |
| Glass Craft Glazing INC | Window and glass contractor | C-17 Glazing | 1147570 | Active | Dec 11, 2025 | Dec 31, 2027 | 93535 | Verify license |
| Kingsley Glass Company INC | Window and glass contractor | B General Building / C-17 Glazing | 736598 | Active | May 30, 1997 | May 31, 2027 | 93534 | Verify license |
| Meldon Glass INC | Window and glass contractor | C-17 Glazing | 486233 | Active | Jan 29, 1986 | Jan 31, 2028 | 93534 | Verify license |
| Tony & Son Glass | Window and glass contractor | C-17 Glazing | 846583 | Active | Sep 14, 2004 | Jan 31, 2028 | 93536 | 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?