When water has damaged your Ottawa 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 Ottawa — not routed from another region.
WRT & ASD certified on every Ottawa job.
Xactimate estimate reviewed with you before work begins.
Your adjuster hears from us, not you.
Four reasons Ottawa homeowners and businesses call COS Water Damage Restoration first when water damage strikes — and give us five stars when we're done.
Every technician holds active IL contractor licensing and IICRC WRT certification. Full general liability and workers' comp coverage is in force on every Ottawa job.
Locally staged equipment and crews mean our Ottawa 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.
Every Water Damage Restoration job in Ottawa carries our written satisfaction guarantee. If the result doesn't meet the documented standard, we return and make it right at zero additional cost.
COS Water Damage Restoration's Water Damage Restoration service in Ottawa 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 Ottawa 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 Ottawa 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.
Antimicrobial treatment is applied to all moisture-exposed structural surfaces as a standard preventive step in every Ottawa 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.
Supplement filing for underpaid Ottawa claims is part of the service.
When drying is confirmed complete, our licensed Ottawa 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.


Call +1-844-499-0972 any time — a live Ottawa dispatcher answers immediately, gathers the details, and deploys the nearest crew. No voicemail, no automated queue, no call-back-tomorrow policy.
Local crews mean local speed — we know Ottawa's roads and we move fast.
No work starts without your written approval of the scope and cost.
Written satisfaction guarantee on every Ottawa job.



"After a supply line failure soaked our kitchen and part of the living room, COS Water Damage Restoration was at our Ottawa 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."
"The insurance side of a water damage claim is overwhelming. COS Water Damage Restoration's Ottawa team handled everything — filed the first notice, attended the adjuster visit, and got us a fair settlement. I didn't make a single insurance phone call myself."
"Three companies quoted our Ottawa 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."
Our Ottawa-based crew serves the surrounding area — if you're not sure whether we cover your location, call +1-844-499-0972 for instant confirmation.
Don't let moisture work deeper into your Ottawa property's structure. One call starts the entire restoration process.
📞 Call +1-844-499-0972 — Ottawa Emergency Response24/7 Live Dispatch · Licensed & Insured · Free On-Site Assessment · Ottawa, IL