Window Replacement · Bellingham, WA · Whatcom County
We install multiple window brands and recommend by your goals — budget, window location, color and features, ease of install — not by what's on the truck. Every opening is flashed like a wall penetration in a wind-driven-rain state should be.
Free on-site estimate — every opening measured, brands compared side by side for your home and budget.
A window is a hole in your wall, and in Bellingham the weather attacks that hole sideways. The window itself matters less than the install: sill pans where the assembly calls for them, flashing lapped into the weather barrier, and sealing that survives freeze-thaw. Skip those details and the best window on the market leaks within a few winters — which is exactly what we find in homes where windows were swapped without opening the flashing.
Bellingham's housing mix drives the method. Craftsman-era homes in Columbia and York often carry original single-pane wood windows worth replacing full-frame, sized to their original openings; '60s–'70s ranches in Birchwood and Roosevelt usually have failing single-pane aluminum where full-frame replacement corrects decades of air leaks at once; and the '90s subdivisions toward Barkley and Cordata are aging out of first-generation vinyl.
Windows also pair naturally with a re-side — with the siding off, flashing integration is cleaner and you save mobilization costs by bundling.
Each material earns its place somewhere in Bellingham — the right answer depends on the house, the wall, and how long you're staying.
The value leader — low maintenance, good thermal numbers, and the biggest selection. Modern vinyl is a different product than the '90s units it often replaces.
Stronger and more dimensionally stable than vinyl through freeze-thaw swings, with slimmer frames and paintable surfaces. A durability upgrade worth pricing.
The right answer inside craftsman-era rooms where trim matters — aluminum or fiberglass cladding outside keeps the weather off the wood.
We've installed and replaced a wide range of window brands — which is why the recommendation starts from your goals, not a dealer agreement. The common picks for Bellingham homes:
Have a different brand in mind? Ask us — chances are we've installed it.
Windows typically run $900–$2,500 per window installed, highly dependent on brand, type, and size. The biggest saving available: replacing windows during a re-side typically costs 25%+ less per window, because demolition, disposal, and administrative overhead are already carried by the siding project.
Every opening is measured individually for your bid. Financing options are available.
We install full-frame nail-flange replacements, not pocket inserts. It takes longer and costs more than slipping an insert into an old frame — and it is the only method that lets us inspect the opening, correct the flashing, and warranty the result without inheriting hidden rot.
Plenty of outfits will happily slip an insert over a frame they never inspected. We'd rather lose the bid than hide a bad frame behind a new sash.
A whole-home window replacement typically runs three to seven days depending on the size of the home and number of openings.
Every unit carries the full manufacturer warranty, plus our own workmanship warranty, included on every project.
Ranges are typical figures for orientation — every bid is measured at your home. Financing options →
No good-better-best games — every project gets the full scope, spelled out line by line in your bid.
If our installation fails, we come back and make it right. The warranty terms are spelled out in your bid — ask us for the current details.
Verified Google review"Siding Vault was the best company for our residing project. After looking into several options, they had the best quote and the most detailed information about our project. Oscar went above and beyond! He helped us solve any preexisting issues that we discovered when working on our house. He was always enthusiastic and made sure we were satisfied at all times. Michael was great at communication and coming up with the best designs. He really helped us understand the process. He also provided us in person consultations, as well as many photos/examples through email, both before and during the project. We had tons of questions and they both were very patient and happy to brainstorm with us. The crew was flexible and kind and showed respect for our home and space. We are very detail oriented and asked them a ton of questions throughout the project. They always helped us really understand all of our options. The new siding and windows turned out great!"
Verified Google review"Great team. Professional and courteous. Work completed quickly. Good communication."
A free estimate at your Bellingham home — brands compared honestly, every opening flashed for the weather it faces.
