Window Replacement Contractors in Westminster, CA

Window replacement contractors in Westminster 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

3BIECC climate zone · ENERGY STAR South-Central zone

What Westminster's climate means for your window spec

Westminster sits in IECC climate zone 3B, the starting point for any code-minimum window performance here.

ENERGY STAR places Orange County in its South-Central zone for window certification.

Normal temperatures run 59°F in January and 74°F in July, so the glass package worth paying for in Westminster 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 7.3 mi away.

20median years licensed

The license record behind these listings

The median window license active in Westminster has been on the books for 20 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 Westminster 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 Westminster, CA

Listed A to Z by business name. No listed business paid for placement or position.

window replacement contractors based in Westminster, CA, with license details
BusinessCategoryLicense classLicense no.StatusEffectiveExpiresZIPOfficial record
A Glass CompanyWindow and glass contractorC-17 Glazing521367ActiveNov 30, 1987Nov 30, 202792683Verify license
Bodie's Glass ServiceWindow and glass contractorC-17 Glazing880958ActiveJul 17, 2006Jul 31, 202892683Verify license
Coastline Window ReplacementsWindow and glass contractorC-17 Glazing1061049ActiveDec 5, 2019Oct 31, 202892684Verify license
Horizon GlassWindow and glass contractorC-17 Glazing1056733ActiveAug 7, 2019Aug 31, 202792683Verify license
K & L Glass INCWindow and glass contractorC-17 Glazing889390ActiveJan 11, 2007Jan 31, 202792683Verify license
Mode Glass & Mirrors INCWindow and glass contractorC-17 Glazing621386ActiveJun 5, 1991Mar 31, 202792683Verify license
Save-On Glass & Screen INCWindow and glass contractorC-17 Glazing766159ActiveJul 21, 1999Jul 31, 202792683Verify license
Waynet Glass Doors And GlassWindow and glass contractorC-17 Glazing1080999ActiveSep 9, 2021Sep 30, 202792683Verify license

Questions to ask before you sign

  1. How long have you held your state license, and can I see the number?
  2. Is this a full-frame replacement or an insert into my existing frame, and why that one?
  3. Who pulls the permit, and does this change trigger an egress check on a bedroom window?
  4. What flashing and sill pan will you use, and in what order do you install them?
  5. If my home was built before 1978, is your crew lead-safe certified for this job?
  6. What's the completion date in writing, and what happens if the schedule slips?

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