Window Replacement Contractors in Bellingham, WA
Bellingham has 9 window replacement contractors on active state license records. The oldest of them has held a window or glazing license since 2004, and the median listing has carried one for 12 years.
Licenses checked · Washington State Department of Labor & Industries
4CIECC climate zone · ENERGY STAR Northern zone
What Bellingham's climate means for your window spec
Bellingham, WA piles up about 4,845 heating degree days in a normal year, against 78 on the cooling side of the ledger.
That's the load an ENERGY STAR-rated window in the Northern zone is built to handle.
A contractor pulled from Bellingham's license record should be able to name the right U-factor for zone 4C before they ever measure an opening.
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 3.1 mi away.
12median years licensed
The license record behind these listings
The median window license active in Bellingham has been on the books for 12 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 Bellingham listing here against Washington's own lookup before you pick up the phone.
Data: Washington State Department of Labor & Industries license records, checked 2026-09-30.
9 window replacement contractors based in Bellingham
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 |
|---|---|---|---|---|---|---|---|---|
| Bellingham Window & GTR CLNG | Window and glass contractor | General | BELLIWG798N4 | Active | Aug 24, 2021 | Oct 27, 2027 | 98226 | Verify license |
| Brite-Way Window Service | Window and glass contractor | General | BRITEWS783K4 | Active | May 24, 2022 | May 24, 2028 | 98225 | Verify license |
| Independent Glass & Door LLC | Window and glass contractor | Glazing/Glass | INDEPGD743M3 | Active | Jul 23, 2026 | Jul 23, 2028 | 98229 | Verify license |
| Lorraine's Window Cvrngs INC | Window and glass contractor | Window Coverings | LORRAWC959D4 | Active | Mar 24, 2005 | Jul 12, 2027 | 98226 | Verify license |
| Mt Baker Window CLNG CO LLC | Window and glass contractor | Pressure Washing | MTBAKBW780NW | Active | Aug 16, 2022 | Sep 2, 2028 | 98229 | Verify license |
| Starline Windows USA LLC | Window and glass contractor | Glazing/Glass | STARLWU850D5 | Active | Mar 25, 2015 | Apr 15, 2027 | 98225 | Verify license |
| Superior Windows & Glass INC | Window and glass contractor | Glazing/Glass | SUPERWG936JL | Active | Apr 13, 2007 | Apr 21, 2027 | 98225 | Verify license |
| Walls & Windows INC | Window and glass contractor | General | WALLSWI963ND | Active | Aug 4, 2004 | Sep 28, 2027 | 98226 | Verify license |
| West Coast Windows INC | Window and glass contractor | Glazing/Glass | WESTCCW923NL | Active | Aug 13, 2008 | Nov 7, 2026 | 98226 | 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?