COS Water Damage Restoration delivers end-to-end Water Damage Restoration in Long Island — 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.
WRT & ASD certified on every Long Island job.
No surprises — flat rate, in writing.
Your adjuster hears from us, not you.
Four reasons Long Island 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 Long Island, ME — credentials available on request before work begins.
Our Long Island-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.
We quote in writing before we start. What you approve is what you pay.
Our reputation in Long Island is one job at a time. We stand behind every single one.
COS Water Damage Restoration's Water Damage Restoration service in Long Island covers the complete recovery process — from the first emergency response through mold prevention, structural drying, and full rebuild.
The moment your call connects, our Long Island restoration dispatcher starts building your response. Extraction crews arrive with truck-mounted systems capable of removing high volumes of water rapidly — limiting saturation time and reducing the overall restoration scope.
Thermal imaging cameras and calibrated moisture meters map the full extent of water migration in your Long Island 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.
Industrial LGR dehumidifiers and high-velocity air movers are deployed in calculated configurations based on your Long Island 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.
Supplement filing for underpaid Long Island claims is part of the service.
One company, start to finish.


Real person, real dispatch. Call +1-844-499-0972 and your Long Island crew is moving before you hang up.
Local crews mean local speed — we know Long Island's roads and we move fast.
No work starts without your written approval of the scope and cost.
Written satisfaction guarantee on every Long Island job.



"Our Long Island 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 Long Island 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 Long Island 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 Long Island and surrounding communities throughout ME. Call +1-844-499-0972 to confirm coverage at your specific address.
Don't let moisture work deeper into your Long Island property's structure. One call starts the entire restoration process.
📞 Call +1-844-499-0972 — Long Island Emergency Response24/7 Live Dispatch · Licensed & Insured · Free On-Site Assessment · Long Island, ME