COS Water Damage Restoration delivers end-to-end Water Damage Restoration in Onalaska — from the emergency call through the final walkthrough, with one certified team, one point of contact, and one transparent price.
Locally based for fast, reliable response.
Industry credentials that matter.
Xactimate estimate reviewed with you before work begins.
Your adjuster hears from us, not you.
Four reasons Onalaska 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 Onalaska, WA — credentials available on request before work begins.
Our Onalaska-based crews target 60-minute on-site response. We don't route your emergency through a regional call center — local dispatch means faster arrival and better outcome.
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 Onalaska is one job at a time. We stand behind every single one.
Our Onalaska Water Damage Restoration team handles every phase of recovery in-house: no subcontracting, no coordination gaps, no handoff problems.
Speed at this phase directly determines how much is salvageable. Our Onalaska crews don't slow down on the way to your property.
Every affected assembly is documented with instrument readings before drying begins.
Industrial LGR dehumidifiers and high-velocity air movers are deployed in calculated configurations based on your Onalaska property's materials, square footage, and psychrometric conditions. Daily readings at fixed sensor points document the drying progression until all assemblies reach target equilibrium moisture content.
We don't rebuild over hidden mold risk.
Our Onalaska 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.
When drying is confirmed complete, our licensed Onalaska reconstruction team handles all rebuild work — drywall, flooring, painting, trim, structural framing — under the same project manager who ran the restoration phase. No handoff to an unknown subcontractor, no coordination gap, no restart of the communication process.


Real person, real dispatch. Call +1-844-499-0972 and your Onalaska crew is moving before you hang up.
Our Onalaska 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.
No work starts without your written approval of the scope and cost.
Written satisfaction guarantee on every Onalaska job.



"After a supply line failure soaked our kitchen and part of the living room, COS Water Damage Restoration was at our Onalaska home in under an hour. The crew's moisture mapping caught wet wall cavity areas I never would have known about. Five days of drying, a perfectly documented insurance file, and zero mold issues. Exactly what you want from a restoration company."
"I was terrified the hardwood floors in our Onalaska 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."
"Mold discovered during our Onalaska renovation led us to COS Water Damage Restoration. The remediation was thorough, the clearance report was accepted by our contractor and insurer on the first submission, and we were back on schedule within the week."
Our Onalaska-based crew serves the surrounding area — if you're not sure whether we cover your location, call +1-844-499-0972 for instant confirmation.
Water damage in Onalaska 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 — Onalaska Emergency Response24/7 Live Dispatch · Licensed & Insured · Free On-Site Assessment · Onalaska, WA