IICRC S500 CertifiedCat 3 flood protocol, cert #70268689
60-Minute ResponseMid-storm dispatch when safe
Direct Insurance BillingHomeowner and flood policies alike
24/7 Live AnswerA person, not a phone menu
Storm Flooding Cleanup in Boston: When the Weather, Not the Plumbing, Floods the House
Storm flooding cleanup is the emergency extraction, contamination control, and structural drying a home needs after weather-driven water gets inside: flash flooding from torrential rain, storm drains that overwhelm and push water back toward foundations, or rain forced through openings the wind created. Studio 24 Restoration Group runs that response 24 hours a day across Boston and the South Shore, and we start documenting the cause of loss in the first hour, because storm water claims are decided by evidence gathered before cleanup erases it.
This page covers one thing: rising water the weather sends at your house from outside. That boundary matters, because flooding has close cousins that are cleaned and insured differently. When groundwater seepage, a saturated water table, or a failed sump floods from below on a calm week, that is interior water loss territory, and our basement flood cleanup crews under the water damage family handle it. When the ocean itself arrives, surge or tide coming over the Scituate and Hull seawalls, salt changes the entire job, and our coastal flood damage page covers that loss type. Everything else the wind and rain can do, from roof breaches to fallen trees, lives with the rest of our storm damage restoration services.
Around Boston, storm flooding follows the terrain. July and August thunderstorms stall against the Blue Hills and can drop two or three inches of rain in an hour, more than the storm drains under older streets in Brockton, Randolph, and Holbrook were ever sized to swallow. Nor’easter rain arrives more slowly but lands on saturated or frozen ground and keeps coming through several tide cycles, which is how low-lying lots along the Neponset and Fore River corridors end up with water in basements and crawlspaces. Mid-century ranches in Braintree and Weymouth sit low on slabs and short foundations, so the same six inches of street flooding that a raised colonial shrugs off comes straight through their door sills. The National Weather Service treats flash flooding as its deadliest short-fuse hazard for a reason: the water rises faster than people expect, and it carries far more than rain.
A separated downspout and a clogged drain send the storm straight to the bulkhead.
Storm Flood Damage or Something Else: Match the Water to the Right Response
Three different kinds of flooding produce nearly identical wet basements, yet they route to different crews, different protocols, and different policies. Before anything else, we establish where the water came from, because that single fact controls how the storm flood damage gets cleaned and who pays for it. The table below is how we triage the call.
| Where the water came from | How it gets handled | Water category | Policy that usually responds |
|---|---|---|---|
| Flash flooding, overwhelmed storm drains, runoff entering at grade | This service: storm flood cleanup with Cat 3 protocol | Category 3 | Flood policy (NFIP or private); rising water is excluded from homeowners |
| Wind-driven rain through an opening the storm created | This service, after the breach is documented and sealed | Category 1 or 2, degrading with time | Homeowners policy in most cases, tied to the wind damage |
| Groundwater seepage, water table, sump pump failure | Basement flood cleanup under the water damage family | Category 2 or 3 | Homeowners only with specific endorsements; often uncovered |
| Storm surge, tidal flooding, seawall overtopping | Coastal flood damage restoration with salt water protocol | Category 3 | Flood policy (NFIP or private) |
The guidance above reflects how these claims typically resolve, not a coverage promise; your policy language and your adjuster control the outcome. What we control is the evidence, and consequently we photograph the exterior water source, the entry points, and the high-water marks before a single gallon gets pumped.
Why Is Storm Water Cleanup a Category 3 Job Under IICRC S500?
The IICRC S500 standard, the reference our crews are certified to, classifies water that enters a building from exterior flooding as Category 3: grossly contaminated, regardless of how clear it looks. The logic is simple chemistry and biology. Before that water reached your basement, it crossed parking lots and roadways picking up fuel, oil, and brake residue, moved through lawns carrying fertilizer and pesticides, and mixed in storm drains that in older Boston-area neighborhoods still interconnect with sanitary lines. Clear floodwater is not clean floodwater.
Category 3 changes the work. Porous materials that soaked, meaning carpet and pad, fiberglass batt insulation, and saturated drywall, are removed rather than dried in place, because contamination bonds to them beyond what drying resolves. Our crews perform flood cuts above the water line, bag and dispose of the affected material, clean and treat the exposed framing with antimicrobial, and only then set the drying system: Dri-Eaz LGR dehumidifiers and air movers positioned off daily psychrometric readings, with grain depression and moisture content logged until structural materials hit their dry standard. On top of that, technicians work in proper PPE and run HEPA air filtration, because splash and aerosol from contaminated water are exposure routes, not just puddles.
Skipping that protocol is how storm-flooded basements turn into mold jobs by Labor Day. Wet organic material in a humid Massachusetts July gives microbial growth everything it needs within 24 to 48 hours, so the removal, cleaning, and drying sequence is not caution theater. It is the difference between one claim and two.
Floodwater and electricity share a room badly. If water is standing above outlet height, or you cannot reach your electrical panel by a completely dry path, stay out of that room and call (781) 390-9855. We coordinate a safe disconnect before extraction begins.
Do not run a shop vac on storm water. Household vacuums aerosolize Category 3 contamination and put it in your breathing air. Truck-mount extraction with containment is the safe route, and it is typically covered on a documented claim.
Flood water is Category 3, so porous materials leave the house in bags.
From First Call to Dry Standard
Flash Flood Cleanup Services, Hour by Hour
- Hour 0 to 1: Dispatch and hazard controlCrew rolls with pumps and extraction gear. Electrical hazards cleared, gas appliances checked, and entry made only where the structure is safe.
- Hour 1 to 2: Document before disturbingHigh-water marks, exterior water path, entry points, and contents photographed with time stamps, because the claim is built from this hour.
- Hour 1 to 6: Pump and extractSubmersible pumps drop standing water, then truck-mount extraction pulls what pumps cannot, including saturated flooring assemblies.
- Day 1 to 2: Remove and cleanFlood cuts, disposal of contaminated porous materials, silt and mud-out, and antimicrobial treatment of everything that stays.
- Day 2 to 5: Dry and verifyLGR dehumidification and airflow tuned daily, moisture readings logged to S500 dry standard, and the record handed to your adjuster.
Truck-mount extraction starts at the bulkhead within the first hour on site.
One Storm, Two Policies: Documenting the Storm Flood Claim
Here is the line every homeowner learns the hard way: standard homeowners policies exclude rising water, no matter what the weather was doing. Water that flows in at or below grade from rain, runoff, or backed-up storm drains is flood damage, and flood damage is covered only by a separate flood policy through the National Flood Insurance Program or a private flood carrier. FEMA’s own consumer data puts the stakes plainly: per FloodSmart, just one inch of floodwater in a home can cause around $25,000 in damage, and you do not need to live in a mapped flood zone to file more than 25 percent of NFIP claims, which come from outside high-risk areas.
Wind-driven rain sits on the other side of the line. When a nor’easter strips shingles or breaks a window and rain pours through that opening, the resulting water damage generally rides the wind claim on your homeowners policy. The same storm can therefore produce two claims on two policies for one house, and carriers on both sides look for reasons to route the loss to the other. That is why our documentation separates the losses from hour one: photographs of the breach and its interior water path for the homeowners claim, and high-water marks with the exterior flooding source for the flood claim, each scoped separately in Xactimate. Our insurance claims team files, supplements, and bills the carrier directly, so you are not fronting the cost of a covered cleanup.
“A flood claim is won with time stamps and high-water marks, and both disappear fast once cleanup starts,” says owner Ansy Chevalier, IICRC certified restorer #70268689, who meets adjusters at the property. Additionally, keep your own record simple: note when water first entered, save a short phone video of the street and yard while it is still flooded, and leave the high-water line untouched until we photograph it. Those three habits close more coverage arguments than any letter we could write afterward.
Asked While the Pumps Are Still Running
Storm Flooding Cleanup, Asked and Answered
Is storm floodwater always Category 3, even when it looks clean?
Yes. The IICRC S500 standard classifies water entering from exterior flooding as Category 3 regardless of appearance, because it has crossed pavement, lawns, and storm drains collecting fuel residue, pesticides, and bacteria on the way in. Clarity only tells you the silt settled. That is why porous materials that soaked get removed rather than dried in place.
The storm drains on my street backed up and water came inside. Which policy applies?
Water rising at or below grade from overwhelmed drains is generally treated as flood, which standard homeowners policies exclude, so an NFIP or private flood policy is what typically responds. Some homeowners carry a water backup endorsement that can apply when the backup comes through their own drains or sewer lines. We document the entry path so the claim routes to the right coverage the first time.
How is storm flood cleanup different from basement flood cleanup?
The difference is the water source, and it changes both protocol and coverage. Storm flood cleanup handles weather-driven water arriving from outside, which is Category 3 and typically a flood policy matter. Basement flood cleanup handles groundwater seepage, water table rise, and sump failures from below, which follow different contamination assumptions and different endorsements. Same wet basement, different job.
Can carpet, drywall, and insulation be saved after storm flooding?
Usually not once they have soaked. Carpet pad, fiberglass batts, and saturated drywall are porous materials that hold Category 3 contamination beyond what drying can fix, so S500 protocol calls for removal and disposal, with flood cuts made above the water line. Hard, non-porous materials like the framing behind them are cleaned, treated, dried, and kept. Replacement of what we remove belongs in the claim scope.
What should I photograph before your crew arrives?
Three things, only if you can do it safely from a dry position: the water in the street or yard while it is still there, the point where it entered, and the highest line it reached inside. Time stamps matter, so use your phone camera and do not tidy anything first. We build the rest of the documentation on arrival, including moisture mapping and the Xactimate scope.
One more boundary worth naming. Storm flooding cleanup ends when the structure is decontaminated, dry to standard, and documented; if the same storm also opened the roof or dropped a tree, those losses run as their own scopes under the same dispatch, one work order, one accountable company. Last updated August 2026.
Water Rising Faster Than the Forecast Said?
Pumps, extraction, and Cat 3 protocol within the hour, with the flood claim documented from minute one. Free inspection, direct billing, no upfront cost on covered work.