When water has damaged your Leonia 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.
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 Leonia 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 Leonia, NJ — credentials available on request before work begins.
Locally staged equipment and crews mean our Leonia 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 Leonia is one job at a time. We stand behind every single one.
Our Leonia 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 Leonia crews don't slow down on the way to your property.
Thermal imaging cameras and calibrated moisture meters map the full extent of water migration in your Leonia property — identifying affected wall cavities, subfloor assemblies, and ceiling materials that aren't visible on the surface. A complete damage picture drives a more accurate scope and a faster insurance claim.
Drying isn't complete until the numbers confirm it — not when a certain number of days have passed.
We don't rebuild over hidden mold risk.
Supplement filing for underpaid Leonia claims is part of the service.
One company, start to finish.


Real person, real dispatch. Call +1-844-499-0972 and your Leonia crew is moving before you hang up.
Our Leonia 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.
Extraction, drying, remediation, and reconstruction proceed under daily monitoring and documented progress reporting. The job isn't complete until final moisture readings confirm success and you've conducted the walkthrough with your project manager.



"Our Leonia 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."
"The insurance side of a water damage claim is overwhelming. COS Water Damage Restoration's Leonia 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."
"Mold discovered during our Leonia 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."
COS Water Damage Restoration provides Water Damage Restoration in Leonia and surrounding communities throughout NJ. Call +1-844-499-0972 to confirm coverage at your specific address.
Don't let moisture work deeper into your Leonia property's structure. One call starts the entire restoration process.
📞 Call +1-844-499-0972 — Leonia Emergency Response24/7 Live Dispatch · Licensed & Insured · Free On-Site Assessment · Leonia, NJ