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Siding & Window Vault

Custom Door Replacement · Northwest Washington

Door replacement that fixes the opening, not just the slab.

Slab swap or full prehung replacement, rot at the sill rebuilt before anything new hangs, and the frame set plumb so it closes like it should — this winter and in ten.

  • ✓ Slab or Prehung
  • ✓ Rot Rebuilt First
  • ✓ Set Plumb & Sealed
ADD-ON SERVICE

Free Door Replacement Estimate

*Often bundled with siding & window projects

Request a free, no-obligation estimate — slab swap and prehung replacement priced honestly against each other.

Google4.9/5 Rating
GuildQuality5/5 Rating
Better Business BureauA+ Rating
No obligation, no pressure
WHAT REPLACEMENT INCLUDES

The Whole Opening, Done Right

Honest Slab-vs-Prehung Call

New door on your frame when it's sound; full prehung when it isn't — decided by inspection, not by the bigger ticket.

Sill & Subfloor Rebuilt

Rot at the threshold repaired before anything new hangs — the failure point wind-driven rain loves most.

Set Plumb & Square

Shimmed and fastened so the door swings true, latches cleanly, and keeps doing both through the seasons.

Flashed Into the Wall

The opening sealed and integrated with the weather barrier, with sill protection matched to what it allows.

Weatherstripping & Sweeps

Fresh seals at every edge — the drafts and daylight gaps of the old door don't transfer to the new one.

Hardware Fitted Right

Handlesets, deadbolts, and smart locks aligned so they latch smoothly for years, not months.

Trim & Finish

Interior and exterior casings finished clean, so the new door looks original to the house.

Structural Changes

Wider openings, sidelites, and window-to-door conversions — headers, permits, and inspection handled.

Slab Swap or Prehung? The Frame Decides

If your existing frame is square, dry, and sound, a slab swap — new door on the old frame — is the affordable path and we'll recommend it. But a door that has stuck, leaked, or drafted for years usually has a frame problem: swollen jambs, a sagging hinge side, or rot at the sill. Hanging a new slab in a bad frame buys you the same problems with a nicer door on them.

Prehung replacement — door and frame as one engineered unit — resets everything: plumb jambs, fresh weatherstripping, a sound sill, and an opening flashed into the wall properly. Our inspection tells you which path your door actually needs, with photos.

The Sill Is Where Doors Die Here

Wind-driven rain pools at thresholds, and an unflashed or failed sill quietly feeds water into the subfloor for years — soft flooring inside the door is the classic symptom. Every prehung we set gets the sill protection the opening allows and rot rebuilt before the new unit goes in, because covering it is the one thing we won't do.

Door options live on our Therma-Tru and Codel pages, and the broader lineup on Custom Doors.

Why Us
Window-Grade Opening Work
Doors flashed like the openings they are
Rot Rebuilt, Never Covered
Photo-documented before pricing
Dealer-Line Doors
Therma-Tru, Codel, and Milgard patio units
Bundles With Siding & Windows
One contractor, one mobilization
Licensed, Bonded & Insured
WA Contractor License #SIDINV*787PJ
LICENSED · BONDED · INSURED
WA #SIDINV*787PJ
Related Services
All Door Services →Therma-Tru Doors →Home Rot Repair →
Top-Rated Local Contractor
By Verified Reviews
165+
REVIEWS · ALL PLATFORMS
100%
LOCAL PNW CREW
4.9
AVERAGE RATING
5
COUNTIES SERVED
FAQ

Door Replacement Questions, Answered Straight

A slab swap is a few hours; a prehung replacement is typically most of a day per opening including trim and sealing. The opening is never left uncovered — out and in happens the same day.
WHERE WE WORK

Door Replacement Across Five Counties

From the Canadian border to north Seattle, plus the San Juans by ferry from Anacortes — these cities and surrounding areas. Pick your city for local project photos, permit notes, and reviews.

BellinghamFerndaleLyndenBlaineMount VernonBurlingtonAnacortesSedro-WoolleyOak HarborCoupevilleFriday HarborCamano IslandEverettMarysvilleStanwood
View All Service Areas →
4.9/5· 165+ reviews

A Door That Closes Right, For Good

A free estimate with an honest slab-vs-prehung call — and the sill fixed before anything new hangs.

Brands we install
Chosen to fit your home and budget
James HardieMilgard Windows & DoorsAndersen Windows & DoorsPly Gem Windows & DoorsLP SmartSideTrex composite deckingGAF roofingCodel Doors