Longboat Key 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 Longboat Key-based Water Damage Repair teams are licensed, certified, and ready around the clock.
Positioned in Longboat Key for fast local response every time.
Every technician holds current WRT certification — the industry standard.
Written estimate in your hands before any work begins.
Works with all major FL insurers.
We've handled everything from flash-flood basement extractions in Longboat Key'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 Longboat Key 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 Longboat Key's housing stock.
Our reputation in Longboat Key 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.

Every service listed below is available 24/7 in Longboat Key — 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 Longboat Key home or business, the standing water you're looking at is only the beginning of the problem. Call +1-844-499-0972 the moment you discover water in your Longboat Key property — our dispatcher will guide you through immediate protective steps while our crew is already on the way.
We approach every Longboat Key residential job with the understanding that we're working inside someone's home, and that means treating the space with care, communicating clearly about what we're doing and why, and keeping the disruption to your family's daily life as minimal as possible. 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.
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. Whether the loss is a small office suite or an entire floor of a commercial building, COS Water Damage Restoration's Longboat Key commercial team has the experience and equipment to handle it.
Many Longboat Key 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. We never treat mold as a surface problem or attempt to cover it with encapsulants when removal is required — our remediation approach is based on assessment of the affected material and what the manufacturer and IICRC standards recommend for each scenario.
Professional structural drying in Longboat Key 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 Longboat Key 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 Longboat Key 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.



Our Longboat Key crew is on standby — call now and someone is heading to your door in under an hour.
📞 Call +1-844-499-0972 — Longboat Key Emergency LineWhen water damage hits in Longboat Key, the decision you make in the first 30 minutes — who you call and how fast they show up — will define the entire scope and cost of your restoration experience.
We're not a call center forwarding your Longboat Key emergency to a regional contractor — we have crews stationed locally in Longboat Key, ready to deploy immediately.
Speed of response is the single most controllable factor in limiting water damage costs — and we've optimized our Longboat Key operation around it.
In Longboat Key, COS Water Damage Restoration never starts work without providing a written, itemized estimate that you've approved — no exceptions, no gray areas.
Your Longboat Key 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 Longboat Key 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.
Every Longboat Key job comes with a written satisfaction guarantee — if the restoration doesn't meet our stated standard, we return and make it right at no additional cost.
No being transferred between departments, no explaining your situation to a new person every time you call, no wondering who's responsible.
Every Water Damage Repair job in Longboat Key follows the same structured process — one we've refined over thousands of local jobs to be as fast, thorough, and transparent as possible.
Your dispatcher gathers the essential information, identifies the closest available Longboat Key crew, and dispatches them immediately — all within the first few minutes of your call.
Our crew arrives at your Longboat Key property and immediately begins a systematic assessment — identifying every water entry point, mapping moisture migration with detection instruments, and classifying the water category (clean, gray, or black water).
With the scope confirmed and your approval in hand, extraction begins immediately using the highest-capacity equipment appropriate for the situation.
Equipment stays until documented readings confirm completion — not until a certain number of days has passed.
Antimicrobial treatment is applied to all moisture-exposed surfaces as a standard preventive step — stopping mold colonization before it can take hold in your Longboat Key property's structural assemblies.
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.
That local familiarity translates into faster arrival, fewer logistical delays, better-informed scope assessments, and the kind of personal accountability that comes from knowing your work might be reviewed by someone who lives down the street.
Longboat Key'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.
Longboat Key's weather patterns contribute to the types of water damage events we see most frequently here — and our crews are prepared for the specific scenarios that Longboat Key property owners face more often than those in other markets.
Water damage restoration costs in Longboat Key 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 Longboat Key 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 Longboat Key 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 Longboat Key Assessment

These are the experiences of your neighbors in Longboat Key — unedited, firsthand accounts of working with our local restoration team.
"I run a small business in Longboat Key and had a toilet supply line failure on a Sunday night that flooded my office suite and spread into the common hallway. I called COS Water Damage Restoration, who answered immediately, and had a crew at the building in under an hour. They worked through the night to extract the water and set up drying equipment before we opened Monday morning. My employees came in to a building that was functional — inconvenient, but operational. The insurance claim was handled entirely by their coordinator and settled in less than three weeks. I recommend them to every business owner I know in Longboat Key."
"After storm water came through our basement window well during a major rain event, I was at a loss. I had an inch of standing water across the whole basement and no idea who to call. A neighbor recommended COS Water Damage Restoration and I'm glad she did. The crew arrived quickly, immediately identified that the water had already gotten under the vinyl plank flooring, and explained everything they were going to do before they started. The drying took a week — they checked in every single day — and when it was done the insurance settled the claim at the full documented amount. I've since recommended COS Water Damage Restoration to three other people in Longboat Key."
"Mold found during the renovation of our Longboat Key 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 Longboat Key clients ask before and during their restoration projects.
Our coverage extends beyond Longboat Key proper to include nearby communities where our Longboat Key-based crews can respond quickly and deliver the same high-quality service.
Give us a call to confirm service at your specific location in or near Longboat Key.
📞 Call +1-844-499-0972 — Confirm Longboat Key CoverageYour Longboat Key property is worth protecting — and the sooner you call, the less it will cost to restore it. COS Water Damage Restoration is standing by right now. Call +1-844-499-0972.
📞 Call +1-844-499-0972 — Longboat Key Emergency Response24/7 Live Dispatch · Licensed & Insured in Longboat Key, FL · No Voicemail · Free Assessment