When water has damaged your Vashon property, every hour without professional intervention expands the loss. Our IICRC-certified Water Damage Restoration team arrives fast, assesses completely, and restores systematically — from initial extraction through final reconstruction.
Crew stationed in Vashon — not routed from another region.
WRT & ASD certified on every Vashon job.
Xactimate estimate reviewed with you before work begins.
We file, document, and follow the claim to settlement.
Four reasons Vashon homeowners and businesses call COS Water Damage Restoration first when water damage strikes — and give us five stars when we're done.
Fully licensed for restoration and reconstruction work in Vashon, WA — credentials available on request before work begins.
Locally staged equipment and crews mean our Vashon response time beats out-of-area contractors every time.
Xactimate-based scope of work reviewed with you before any equipment is placed. The estimate you approve is the invoice you receive — no hidden line items, no after-the-fact surprises.
Our reputation in Vashon is one job at a time. We stand behind every single one.
COS Water Damage Restoration's Water Damage Restoration service in Vashon covers the complete recovery process — from the first emergency response through mold prevention, structural drying, and full rebuild.
Speed at this phase directly determines how much is salvageable. Our Vashon crews don't slow down on the way to your property.
Every affected assembly is documented with instrument readings before drying begins.
Drying isn't complete until the numbers confirm it — not when a certain number of days have passed.
Antimicrobial treatment is applied to all moisture-exposed structural surfaces as a standard preventive step in every Vashon Water Damage Restoration job. Where mold growth is identified, IICRC S520-compliant remediation — with HEPA containment, negative air pressure, and clearance testing — is performed before reconstruction begins.
Our Vashon claim coordinators build your documentation file from day one: structured photo evidence, moisture data logs, equipment placement records, and an Xactimate scope of work that matches your carrier's estimating platform. We file, communicate with your adjuster, and follow the claim through to settlement so you don't have to.
One company, start to finish.


Real person, real dispatch. Call +1-844-499-0972 and your Vashon crew is moving before you hang up.
Our Vashon crew targets on-site arrival in 60 minutes or less, staging extraction equipment and containment supplies during transit so they're productive the moment they arrive.
A thorough walk-through with moisture instruments and thermal imaging establishes the full scope of loss. You receive a written, itemized Xactimate estimate before any work begins — signed off by you before the first tool is placed.
Written satisfaction guarantee on every Vashon job.



"Our Vashon business had a roof-to-slab water event on a Thursday night. By Friday morning COS Water Damage Restoration had extracted everything, staged drying equipment, and given me a documented scope I could hand directly to my adjuster. We were operational again the following week. Truly professional."
"I was terrified the hardwood floors in our Vashon home were gone after the flooding. The COS Water Damage Restoration crew brought in mat drying systems and dried them in place — saved us thousands versus replacement. The project manager called every morning with readings. Outstanding."
"Three companies quoted our Vashon water damage restoration. COS Water Damage Restoration was the only one who walked every room with instruments before quoting, explained each line of the estimate, and committed to the timeline in writing. They came in on time, on scope, and the claim went through without a single supplemental dispute."
COS Water Damage Restoration provides Water Damage Restoration in Vashon and surrounding communities throughout WA. Call +1-844-499-0972 to confirm coverage at your specific address.
Water damage in Vashon gets worse every hour. Our local crew is on standby and can be at your door in under 60 minutes — call now.
📞 Call +1-844-499-0972 — Vashon Emergency Response24/7 Live Dispatch · Licensed & Insured · Free On-Site Assessment · Vashon, WA