Old Greenwich property owners dealing with water damage have one smart move: call COS Water Damage Restoration and get a local crew on site within the hour. COS Water Damage Restoration's Old Greenwich-based Water Damage Repair teams are licensed, certified, and ready around the clock.
Local Old Greenwich crews on standby — not dispatched from out of the area.
Certified professionals, not unlicensed laborers.
No hidden fees, no last-minute line items.
Works with all major CT insurers.
We've handled everything from flash-flood basement extractions in Old Greenwich's older neighborhoods to multi-floor commercial water events in newer construction, and every job has reinforced the same core truth: speed and expertise make the difference between a manageable repair and a catastrophic rebuild.
Every technician who arrives at your Old Greenwich property carries current IICRC WRT (Water Damage Restoration Technician) certification, a background-check clearance, and familiarity with the specific materials and construction methods common in Old Greenwich's housing stock.
If you've already experienced water damage in Old Greenwich and need someone to respond right now, call +1-844-499-0972 — our local crew is ready.

Every service listed below is available 24/7 in Old Greenwich — no wait lists, no "call back during business hours," no sending you to a subcontractor we can't vouch for.
When a pipe bursts, a basement floods, or a storm drives water into your Old Greenwich home or business, the standing water you're looking at is only the beginning of the problem. Old Greenwich's Water Damage Repair emergency calls include everything from clean water supply line failures to contaminated sewage backflows, and our crews are trained and equipped for every category of water damage — with the right PPE, containment protocols, and extraction methods for each situation.
For Old Greenwich homeowners, water damage is one of the most disruptive and stressful events a family can face — and the quality of the restoration company you choose determines not just how fast you get back to normal, but how thoroughly the problem is actually resolved. For Old Greenwich homeowners with original hardwood floors, our floor mat drying systems often allow us to dry hardwood in place rather than requiring replacement — a significant cost savings and a result that preserves the character of your home.
We work in occupied buildings, schedule around your operating hours when it's possible to do so safely, and produce the detailed loss documentation that commercial insurance adjusters require — all as standard practice, not a premium option. Our Old Greenwich commercial team has experience with office buildings, multi-tenant retail spaces, restaurants and hospitality properties, warehouses and light industrial facilities, medical and professional offices, and multi-family residential properties.
COS Water Damage Restoration's mold remediation team in Old Greenwich follows IICRC S520 protocols — the industry standard for safe and effective mold removal — and documents every step of the process so you have a verifiable record of what was found, what was done, and what clearance testing confirmed. Post-remediation air quality testing provides objective confirmation that the remediation was successful, and the written clearance report we issue becomes part of your property's maintenance record.
Professional structural drying in Old Greenwich is the phase of water damage restoration that most homeowners understand least — and the one that most directly determines whether the restoration holds up long-term or creates ongoing problems. We deploy industrial LGR dehumidifiers and high-velocity air movers in a calculated configuration based on the square footage, material types, and psychrometric conditions specific to your Old Greenwich property — not a one-size-fits-all equipment drop.
COS Water Damage Restoration takes the second challenge entirely off your hands — from the first notice of loss through final settlement — so you can focus on your family and your recovery rather than on paperwork, phone calls, and adjuster negotiations. We've worked with every major insurer serving Old Greenwich and Old Greenwich, CT and understand the specific documentation standards, turnaround expectations, and adjuster assignment processes that each carrier follows — knowledge that translates into faster claim approvals and fewer disputes.



Every minute of standing water in Old Greenwich costs you more. Call our local dispatch line right now.
📞 Call +1-844-499-0972 — Old Greenwich Emergency LineThere are several restoration companies that claim to serve Old Greenwich — here's why COS Water Damage Restoration consistently earns the call, the five-star review, and the referral.
When you call COS Water Damage Restoration in Old Greenwich, the crew that shows up actually works here.
Speed of response is the single most controllable factor in limiting water damage costs — and we've optimized our Old Greenwich operation around it.
Flat-rate pricing means the number on your estimate matches the number on your final invoice, assuming no scope changes.
Your Old Greenwich home or business deserves the professionalism that certification represents.
Better tools mean faster drying, more thorough moisture removal, and far less risk of mold development or structural damage after the job is complete.
Our Old Greenwich claim team knows the carriers serving this market, the documentation those carriers require, and how to build a file that moves through underwriting quickly and pays out what you're owed.
Five-star reviews are earned, not purchased — and they reflect what happens when every technician takes personal pride in the outcome of every job.
One contact, complete accountability, from start to finish.
Every Water Damage Repair job in Old Greenwich follows the same structured process — one we've refined over thousands of local jobs to be as fast, thorough, and transparent as possible.
You receive your crew's estimated arrival time before you hang up, and a direct callback number if anything changes en route.
Thermal imaging cameras reveal moisture in wall assemblies and under flooring that isn't yet visible on the surface — giving us a complete picture of the damage before we build the response plan.
We extract completely and transition directly to drying setup without an overnight gap where mold begins to grow.
Daily moisture readings are taken, recorded, and shared with you and your insurance adjuster so everyone can see the drying progress in real numbers.
A written remediation report is issued that documents every action taken and every clearance measurement recorded.
Our licensed reconstruction team handles all Old Greenwich rebuilding work — drywall, flooring, painting, trim, and structural repairs — under the same project management as the restoration phase.
When a restoration company sends a crew to your Old Greenwich property who has never worked in the area, the difference in performance is real — and it shows up in ways that matter: slower navigation to your address, unfamiliarity with local building code requirements that affect how drying and reconstruction are approached, no relationship with local supply vendors that allows materials to be sourced quickly, and no reputation to protect within the community they're serving.
Old Greenwich's mix of housing stock — from older historic homes to newer construction developments — presents a range of material and structural challenges that our crews encounter regularly.
Whether it's the spring flooding pattern, the summer storm profile, or the winter freeze-thaw cycle that affects Old Greenwich's plumbing, we approach Old Greenwich jobs with an awareness of local conditions that an out-of-area contractor simply can't replicate.
Water damage restoration costs in Old Greenwich vary based on several factors: the volume of water, the category of water (clean vs. contaminated), the materials affected, the square footage involved, and the extent of mold risk. Most residential water damage events in Old Greenwich fall within a range that homeowner insurance covers significantly, which is why our insurance coordination service is so valuable — we help make sure your policy pays what it should so your out-of-pocket is minimal. Call +1-844-499-0972 for a free on-site estimate with no obligation to proceed — we'll give you a clear picture of scope and cost before you commit to anything.
If you're a property owner in Old Greenwich who has just discovered water damage — whether it's an active flood or moisture you noticed during an inspection — your best first call is +1-844-499-0972.
📞 Call +1-844-499-0972 — Free Old Greenwich Assessment

These are the experiences of your neighbors in Old Greenwich — unedited, firsthand accounts of working with our local restoration team.
"We had a washing machine overflow that soaked the laundry room and wicked into the adjacent bedroom overnight before we noticed it. I found it in the morning and called COS Water Damage Restoration immediately. Their crew was at my Old Greenwich house in 55 minutes — which was remarkable given that I called at 7 a.m. on a Saturday. They found moisture under the bedroom baseboard that I never would have caught, set up drying equipment that ran for five days, and the project manager called me with readings every morning. No mold, no lingering smell, and the claim went through without a single request for additional documentation. Absolute professionals."
"The burst pipe situation in our Old Greenwich rental unit was a nightmare — the tenants called me at midnight, the unit was partially flooded, and I had no idea how bad it was. COS Water Damage Restoration's crew was on site before I could even get there myself. By the time I arrived, extraction was underway and the project manager was already walking through the damage assessment with photos. I had a full scope and estimate in my email before 2 a.m. The restoration was completed on schedule, within the estimated cost, and my tenant was back in the unit within two weeks. Outstanding."
"I had a fear that calling a restoration company would mean getting upsold on everything and being pressured into expensive services I didn't need. COS Water Damage Restoration was the complete opposite of that experience. The technician explained the moisture readings to me at each sensor point, showed me why certain materials needed to be addressed and others could be left in place, and gave me an honest assessment of what the insurance would likely cover versus what might be out of pocket. No pressure, no inflated scope — just honest professional advice and excellent execution. My Old Greenwich neighbors have my standing recommendation for them."
Can't find what you need? Call +1-844-499-0972 any time — a live Old Greenwich specialist will answer.
Zip codes served in and around Old Greenwich are listed below — if yours isn't shown, call +1-844-499-0972 to confirm coverage for your specific address.
Give us a call to confirm service at your specific location in or near Old Greenwich.
📞 Call +1-844-499-0972 — Confirm Old Greenwich CoverageWhether it's 3 a.m. or the middle of a holiday weekend, our Old Greenwich crew is on standby, briefed, and ready to deploy. One call to +1-844-499-0972 puts licensed, certified water damage professionals at your door within the hour.
📞 Call +1-844-499-0972 — Old Greenwich Emergency Response24/7 Live Dispatch · Licensed & Insured in Old Greenwich, CT · No Voicemail · Free Assessment