A flood in Block Island doesn't get better by waiting, and the cost of delay is measured in thousands of dollars of preventable damage. COS Water Damage Restoration's Block Island-based Water Damage Repair teams are on standby 24/7 with equipment staged and crews briefed.
Local Block Island crews on standby — not dispatched from out of the area.
Every technician holds current WRT certification — the industry standard.
Written estimate in your hands before any work begins.
Works with all major RI insurers.
We've handled everything from flash-flood basement extractions in Block Island'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.
Our Block Island crew lead coordinates directly with your insurance carrier from the moment we arrive on site — building the documentation package, scheduling the adjuster walkthrough, and following up on open claim items until your settlement is confirmed and you can move forward with reconstruction.
Our reputation in Block Island is built on one job at a time — and we protect it by treating every property we work in with the same professionalism we'd want if it were our own home or business being restored.

Our integrated service model means Block Island property owners have one phone number, one point of contact, and one company responsible for the outcome from start to finish.
Our truck-mounted extraction systems can pull high volumes of water in a fraction of the time it would take with consumer-grade equipment — getting the visible water out fast while our moisture detection team maps the water you can't see yet. Call +1-844-499-0972 the moment you discover water in your Block Island property — our dispatcher will guide you through immediate protective steps while our crew is already on the way.
Our residential restoration teams in Block Island are experienced across the full range of home types found in the area — older homes with original hardwood and plaster, newer construction with engineered materials and finished basements, and everything in between. Daily check-ins from your project manager keep you informed throughout the drying cycle, and reconstruction doesn't begin until documented moisture readings confirm every structural assembly has reached target levels.
COS Water Damage Restoration's commercial restoration operation in Block Island is built for speed and scale — with crew sizes that grow to meet the scope of the loss, equipment inventories that cover large square footages, and project management that keeps business owners and property managers informed without requiring them to micromanage the process. Our Block Island 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.
Many Block Island homeowners discover mold weeks or months after a water event that they thought had been fully addressed, because invisible moisture remained in wall cavities, beneath flooring, or in attic insulation after a surface-only cleanup. HEPA filtration, containment barriers, negative air pressure, and proper PPE are standard on every Block Island mold remediation job — protecting your household members and our crews from exposure to dislodged spores during the removal process.
Professional structural drying in Block Island 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 Block Island 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. Our approach to insurance coordination in Block Island is built on the principle that your policy was paid to cover a genuine loss, and our job is to make sure it pays what it's supposed to.



Every minute of standing water in Block Island costs you more. Call our local dispatch line right now.
📞 Call +1-844-499-0972 — Block Island Emergency LineThere are several restoration companies that claim to serve Block Island — 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 Block Island, 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 Block Island operation around it.
Our Xactimate-based estimates are formatted the way your RI insurance carrier expects to receive them, which means no disputes and faster claim processing.
Your Block Island home or business deserves the professionalism that certification represents.
We invest in the equipment that produces the outcomes our Block Island customers review five stars for.
Our Block Island 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 Block Island follows the same structured process — one we've refined over thousands of local jobs to be as fast, thorough, and transparent as possible.
You call +1-844-499-0972 and a live Block Island dispatcher answers — no voicemail, no call tree, no waiting on hold during your emergency.
You receive a clear verbal briefing and a written estimate scope before any work begins.
We extract completely and transition directly to drying setup without an overnight gap where mold begins to grow.
A calculated drying plan is implemented immediately following extraction — air movers and dehumidifiers placed based on psychrometric data specific to your Block Island property's materials and conditions.
Pre-existing or emerging mold growth is addressed by our IICRC-certified remediation specialists with containment, HEPA air scrubbing, material removal, and clearance testing.
We coordinate the reconstruction scope with your insurance carrier's supplement process before work begins, so funding is in place and there are no payment delays.
COS Water Damage Restoration's Block Island-based crews bring none of those disadvantages — our technicians know Block Island, work in Block Island's neighborhoods regularly, understand the construction patterns and material choices common in different parts of the city, and are invested in the reputation we've built here job by job.
Older Block Island homes with original hardwood flooring, plaster walls, and basement moisture histories require different drying strategies than newer builds with engineered hardwood, drywall, and open-plan floor plans that allow air movement differently.
Whether it's the spring flooding pattern, the summer storm profile, or the winter freeze-thaw cycle that affects Block Island's plumbing, we approach Block Island jobs with an awareness of local conditions that an out-of-area contractor simply can't replicate.
Water damage restoration costs in Block Island 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 Block Island 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.
Our Block Island dispatcher will ask you a few quick questions to characterize the situation, tell you what to do (and what not to do) while our crew is in transit, and give you an honest arrival estimate so you're not left wondering.
📞 Call +1-844-499-0972 — Free Block Island Assessment

Read what Block Island customers consistently say about response time, professionalism, pricing, and results.
"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 Block Island 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 Block Island 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."
"Mold found during the renovation of our Block Island home led us to COS Water Damage Restoration for remediation. The discovery was stressful — we didn't know how extensive it was or what it meant for the timeline of our project. The COS Water Damage Restoration team came in, assessed it thoroughly, explained exactly what they found and what the IICRC-compliant remediation process looked like, and completed the job on time. The post-remediation air testing came back clear, the report they provided satisfied our contractor and our insurer, and we were back on schedule within a week. Professional from beginning to end."
We believe informed customers make better decisions and have better restoration experiences. Here are the most common questions our Block Island clients ask before and during their restoration projects.
Zip codes served in and around Block Island are listed below — if yours isn't shown, call +1-844-499-0972 to confirm coverage for your specific address.
Not sure if we cover your specific address in or around Block Island? Call us at +1-844-499-0972 — we'll confirm coverage immediately.
📞 Call +1-844-499-0972 — Confirm Block Island CoverageWater damage in Block Island accelerates with every hour of delay. Our local dispatch is live right now — call +1-844-499-0972 and get immediate help from a crew that knows your city and is ready to go.
📞 Call +1-844-499-0972 — Block Island Emergency Response24/7 Live Dispatch · Licensed & Insured in Block Island, RI · No Voicemail · Free Assessment