Clean water
Water from a sanitary source — a broken supply line, a water heater, a tub left running. ANSI/IICRC S500 notes it does not stay Category 1 forever: time, temperature and contact with building materials can push it into Category 2 or 3.
Serving all of Pinellas County · Open 24/7 · (727) 263-3778
A burst pipe gets your attention. An appliance leak usually does not. A supply line behind the washing machine weeps a cup a day. The dishwasher gasket lets go a little at a time under the cabinet toe kick. The water heater pan drains somewhere nobody has looked at in years. By the time the floor feels soft or the room starts to smell, the water has been moving through the wall cavity and across the slab for weeks. We are United Water Restoration Group of Pinellas County, and our shop sits at 3734 131st Avenue N, Unit #12, Clearwater, FL 33762, in the Gateway area next to St. Pete-Clearwater International Airport. From that door, Pinellas Park is minutes away, downtown St. Petersburg and downtown Clearwater are each roughly twenty minutes, and Largo and Seminole sit just west along Ulmerton Road and Park Boulevard. We answer the phone at (727) 263-3778 around the clock, every day. Our crews work to the IICRC S500 water damage standard, and when a slow leak has already grown mold, to IICRC S520. Rated 4.93 stars across 169 reviews.
Most single-family homes here are concrete block with stucco, sitting on a slab. That combination changes where a leak goes. The drywall inside a block wall is not stuck to the block. It hangs on wood or metal furring strips, which leaves a narrow hollow channel between the back of the drywall and the block itself. Water from a weeping supply line or a leaking water heater runs down into that channel and sits there. A moisture meter pressed against the painted surface can read dry while the cavity behind it is wet, and the block keeps releasing that moisture back into the drywall for days after the plumbing is fixed. That is the reason flood cuts and baseboard removal are normal practice on block walls, and the reason a job closed out too quickly comes back as mold.
There is no basement anywhere in this county for the water to fall into. It spreads sideways instead. It travels under the cabinet toe kick, under the plank flooring, into the bottom plate of the wall, and out into the next room. In the 1950s and 1960s tract houses that fill big parts of Largo, Pinellas Park and St. Petersburg, the terrazzo was poured across the whole footprint and ground smooth before the partition walls went up, so the floor runs continuously underneath the walls. Water uses that path, and the floor cannot be cut out one room at a time.
The slab itself is part of the problem. The county's median home was built in 1976, well before under-slab vapor barriers were routine, and the seasonal high water table around here sits six to eighteen inches below the surface for months at a time. A slab that meters dry on top can still push moisture up into whatever gets installed on it.
Water heaters fail in two ways. The tank corrodes and starts to weep at the bottom seam, which produces a slow, steady wetting that shows up as a stained baseboard in the room on the other side of the closet wall. Or a fitting or the temperature and pressure valve lets go, which is fast and loud and at least tells you something is wrong. The slow one does more damage. Drain pans help only if the pan's line actually runs somewhere, and on older houses it frequently does not.
Washing machine hoses are the classic. A braided or rubber supply line at the valve sweats, splits at the crimp, or drips behind the drum where nobody looks. Laundry discharge is not clean water either. Under the S500 standard it is Category 2, so wet drywall and cabinet bases in a laundry room usually come out rather than get dried in place.
Dishwashers leak at the door gasket, at the inlet valve fitting, and at the drain hose clamp. The water runs under the unit, into the particleboard cabinet base, and along the toe kick to the sink cabinet. By the time the kitchen floor lifts at a seam, the cabinet run has been wet for a while.
Refrigerator icemaker lines are quarter-inch tubing behind a heavy appliance, often on an old saddle valve. A pinhole there can run for months.
Then there is AC condensate, which is the one people never think of. The air handler pulls water out of the air nearly every day of the year here, and when the primary drain line clogs with biological growth the pan overflows into the closet floor, the ceiling below, or the attic insulation. If the float switch is bypassed or stuck, nothing shuts the system off.
In a dry climate, a small leak sometimes dries itself. Here it does not. EPA's guidance is that wet materials dried within 24 to 48 hours will, in most cases, not grow mold. That window is what everything else hangs on, and Pinellas air does nothing to help you meet it. Relative humidity in the Tampa Bay area averages about 74 percent across the year and never falls below a 69 percent monthly average, even in April, the driest stretch. EPA wants indoor relative humidity under 60 percent and ideally between 30 and 50. Outdoor air here exceeds that essentially every day of the year, so opening a window is not a drying strategy. It is a way to import more water.
There is no off season for this. St. Petersburg records muggy or worse conditions in every month of the year, and the monthly normal low never drops below 52.5 degrees. Nothing about the calendar arrests mold growth. Summer dew points run above 70 degrees for months at a stretch. A leak that started under the dishwasher in February and a leak that started in August are both on the clock from hour one.
That is why we ask how long the water has been there before we ask how much of it there is. A cup a day for six weeks is a worse problem than a gallon this morning. The material has stayed wet, the cavity behind the drywall has stayed wet, and the fungal growth that follows is not a surface issue.
The practical line to know: EPA says a moldy area smaller than about ten square feet, roughly a three by three patch, is usually a homeowner job. Florida's mold licensing law attaches at the same size. Over ten square feet, the work requires a licensed individual.
Call comes in, day or night, at (727) 263-3778. First question is where the water is coming from and whether it has stopped. If it has not, that gets handled before anything else. There is no point drying a wall that is still being fed.
On site we find the edges of the wet area, not just the obvious puddle. That means a moisture meter, a thermal camera to spot the temperature differences where evaporation is happening, baseboard off, and small inspection holes where the readings say the cavity behind the drywall is wet. On a block wall the meter on the painted face is not the answer, so we open it and look.
Then we classify the loss the way ANSI/IICRC S500-2021 requires, on two separate axes. Category is how contaminated the water is: a clean supply line is Category 1, laundry or dishwasher discharge is Category 2, sewage is Category 3. Class is how hard it will be to dry. Block, stucco, plaster and terrazzo are low-porosity materials that hold water tightly, so jobs here land in Class 4 specialty drying more often than they would in a wood-framed house.
Materials that cannot be dried in place come out: usually the bottom section of drywall, wet insulation, particleboard cabinet bases, carpet pad. What stays gets dried with air movers and dehumidifiers, with containment if we are cutting. We take moisture and psychrometric readings on every visit and write them down, and we compare the affected material against unaffected material elsewhere in the same building rather than calling it done by eye.
If mold has already established past ten square feet, the work moves to ANSI/IICRC S520-2024: contain the area, remove the Condition 3 growth, clean the settled Condition 2 areas, and verify the result.
Nearly one Pinellas housing unit in five sits in a building of twenty or more units, and about twelve percent are in buildings of fifty or more. That is the condo legacy of the waterfront and barrier-island building boom, and it changes an appliance leak completely. A water heater in a third-floor utility closet does not just wet that unit. It follows the plumbing chase and the floor assembly down, and the first call often comes from the owner two floors below who noticed a ceiling stain. Those jobs need drying equipment in more than one unit, access arranged through the association, and clear documentation of which parts are the unit and which are the common element. We would rather sort that out on day one than after the drywall is open.
Older housing is its own problem. In Historic Kenwood, the Old Northeast, Roser Park and the Craftsman streets of Dunedin, the walls are frequently wood lath and plaster rather than drywall. Wet lath swells and pushes outward, cracking the keys that hold the plaster to it, so the wall fails from behind in a way drywall does not. Original longleaf pine flooring cannot be reordered. Those houses get a slower, more patient drying schedule. A pre-1940 bungalow may also sit on piers over a crawl space instead of a slab, which is an entirely different drying job, so we check the foundation rather than assume it.
Then there are the houses standing empty. Seminole and Dunedin both have a median age near 56, with about a third of residents over 65, and plenty of homes here are closed up for part of the year. A refrigerator line that starts dripping in an empty house runs until somebody opens the door.
A few minutes of the right first moves can save thousands in damage. Here is what to do — and what not to do — before we arrive.
Crews are standing by in Pinellas County right now.
Call (727) 263-3778How It Works
The hardest part of property damage is facing it on your own. You do not have to — from the first phone call, it is our job, not yours.
Step 01
Upon arrival, we conduct a thorough assessment using thermal imaging and moisture meters to determine the extent of water damage and form a precise action plan. This process helps us decide on the best equipment and methods to apply, tailored to the specific conditions of your home.
Step 02
We utilize high-efficiency pumps and vacuums to quickly remove standing water, minimizing damage to subfloors, carpeting, and baseboards. This step is crucial in preventing water from seeping into foundations or other hidden areas that could risk long-term damage.
Step 03
Deploying air movers and dehumidifiers, we dry affected areas, focusing on reducing relative humidity and preventing mold growth. This includes setting containment barriers and using vapor barriers to stabilize the environment during the drying phase.
Step 04
Regular checks with moisture meters ensure drying progress and adjust equipment as needed to safeguard against secondary damage. Our team keeps detailed logs, monitoring any changes in humidity or moisture levels within walls and floors to ensure thorough drying.
Step 05
Once dry, we use antimicrobial treatments to sanitize the area, followed by necessary repairs, restoring your home to pristine condition. This includes addressing any cosmetic damage and ensuring all affected areas are returned to a hygienic and habitable state.
The restoration standard sorts water by how contaminated it is, and that classification — not how much of it there is — decides what can be dried and what has to go.
Water from a sanitary source — a broken supply line, a water heater, a tub left running. ANSI/IICRC S500 notes it does not stay Category 1 forever: time, temperature and contact with building materials can push it into Category 2 or 3.
Water with significant contamination — enough that it could cause discomfort or illness if someone touched it or swallowed it. S500 puts dishwasher and washing-machine discharge, an overflow from the toilet bowl itself with urine but no feces, and seepage through a foundation under hydrostatic pressure in this group.
Grossly contaminated water that can carry pathogens — sewage, backups from past the toilet trap, and ground or surface water that has entered the building. S500 generally calls for porous materials that absorbed it, such as carpet cushion and insulation, to be removed rather than dried.
Classification per ANSI/IICRC S500, the industry standard for professional water damage restoration.
Water damage is not one event, it is a sequence. Each stage costs more to undo than the one before it, which is why drying starts before anything else does.
First hours
It runs along the floor and wicks upward into drywall, carpet cushion and insulation, so the wet area is already larger than the puddle you can see.
1–24 hours
Wood swells and cups, drywall softens, and anything made of pressed board or laminate begins to come apart at the seams.
24–48 hours
EPA guidance is that wet material dried inside the first 24 to 48 hours will, in most cases, not grow mold. Past that window it can, and then the job is no longer only about water.
2–7 days
Paint and wallpaper let go, joints open up, and moisture travels through wall cavities into rooms that were never touched by the original leak.
1 week or more
Once structure and finishes have held water this long, the work shifts from drying materials out to cutting them out and putting new ones back.
Mold timing per US EPA guidance on moisture and mold. The other stages vary with the material, the temperature and how much water is involved.
Drying a structure is a measured process, not a matter of pointing fans at a wet floor. Each piece of equipment does one job in that sequence.
Vacuum systems, truck-mounted or portable, that pull standing water out of carpet, cushion and hard surfaces. S500 prioritises physically removing water first, because extraction takes out far more of it, far faster, than evaporation ever will.
Low-profile blowers aimed along a wet surface rather than at it. They peel off the thin layer of saturated air sitting on the material, which is what keeps evaporation from stalling.
Air movers move water out of materials and into the air; dehumidifiers take it back out of the room. Refrigerant units condense it on a cold coil and drain it off, desiccants pull it onto a drying medium. Evaporated water that is not removed raises humidity, and dry materials can take it back on — what S500 calls secondary damage.
Pin and pinless meters read how much water is actually inside wood, drywall and subfloor. S500 sets the finish line as a dry standard — readings taken from unaffected material of the same type in the same building — not how a room looks or feels.
Temperature and relative humidity readings taken inside the drying area, outside it, and at the dehumidifier outlet. Comparing the three shows whether the setup is genuinely pulling water out of the building or just stirring it around.
A thermal camera cannot see water — it sees temperature. Wet material usually reads cooler because evaporation cools it, so the camera narrows down where water travelled behind walls and where to put a meter next.
Sheeting seals the work area and a HEPA-filtered machine holds it under negative pressure, so dust and spores leave through the filter instead of drifting through the building. IICRC S520 treats containment and HEPA filtration as standard controls when contaminated material is disturbed.
Floor mats and structural cavity drying systems move air through wall and ceiling cavities, under flooring, and into enclosed spaces such as the void beneath cabinets. The aim is to dry an assembly in place — where the category of water or the state of the material allows it.
Equipment roles per ANSI/IICRC S500; containment guidance per IICRC S520 and EPA mold guidance.
Drying in place is the goal, and it is often achievable. What decides it is the category of the water and what the material is made of — a measured judgement rather than a guess. Under ANSI/IICRC S500, porous materials that absorbed contaminated water are generally removed rather than dried, while materials wet by clean water can frequently be dried where they are.
Where an assembly has to be opened, it is opened deliberately: enough to reach wet insulation and framing, documented before anything is cut, and put back by the same company that took it out.
Restoration is stressful enough without fighting through a claim alone. Our crews document everything — photos, moisture readings, and a clear scope of work — in the format adjusters expect, and we communicate with your insurance company throughout the job. You always know what is happening and what your policy covers before work begins.









Appliance leaks are the quiet ones. Nobody posts a photo of a dishwasher gasket. But they do real damage precisely because they run unnoticed, and because a house built of block on a slab hides water well. The drywall hangs off furring strips with a cavity behind it. The terrazzo runs continuously under the partition walls. The slab draws moisture from a water table that sits inches below it for months of the year. And the air outside is never dry enough to help. So the honest advice is to look at the things you never look at. Pull the washing machine out once a year and check the hose at the crimp. Put a hand on the floor of the water heater closet. Look at where the condensate line discharges and make sure water is actually coming out of it while the system runs. Check behind the refrigerator when you clean the coils. If you close the house up for part of the year, leave the air conditioning running and ask somebody to walk through it. When you do find it, call us. We are at (727) 263-3778, 24 hours a day, from our shop at 3734 131st Avenue N, Unit #12 in Clearwater, and we serve St. Petersburg, Clearwater, Largo, Seminole, Pinellas Park, Palm Harbor and Dunedin. Bring us the small leak. It is a much better job than the big one it becomes.
Treat it as one. A soft spot means water has already been under the covering long enough to break down the material beneath it, and that takes time, not minutes. On a slab, water spreads sideways under the flooring and into the bottom plate of the wall, so the wet area is almost always larger than the soft area. Call and we will map it with meters before anything gets torn up.
That depends on your policy and your carrier. In general, Florida homeowners policies cover sudden and accidental water from inside the building, such as a burst supply line or an appliance failure, while rising water and storm surge sit with a separate flood policy. Two things worth knowing: Florida requires notice of a claim within one year of the date of loss, and for policies issued on or after January 1, 2023, benefits cannot be assigned to a contractor. You stay the claimant. We document the loss for you.
It depends on the category of the water, how much material is wet, and how long it ran. Block walls, stucco, plaster and terrazzo hold water tightly and fall under Class 4 specialty drying, which takes longer than a wood-framed wall. Equipment usually runs several days. We take readings each visit and compare the affected material to unaffected material in the same building, and the equipment stays until those numbers line up.
Florida keeps those two roles apart. A mold assessor, or the assessor's company, cannot remediate a structure it assessed in the previous twelve months, and the reverse is also barred, with a carve-out for certified Division I contractors whose remediation contract discloses the homeowner's right to request competitive bids. Also, DBPR licenses individuals, not companies. Ask for the license number of the person doing the work on your house, not just whether the firm is licensed.
For a small patch, under about ten square feet or roughly three feet by three feet, EPA says you can usually handle it. Past that, no. A fan moves air across the painted face of a block wall, and the water is in the cavity behind the furring strips where that air never goes. Ambient humidity here stays at or above 69 percent every month of the year, so the room air is not doing the drying.
We work out of 3734 131st Avenue N, Unit #12, Clearwater, in the Gateway area off Ulmerton Road, which puts us near the middle of the county. Pinellas Park is essentially next door. Downtown St. Petersburg and downtown Clearwater are each roughly fifteen to twenty minutes. Largo and Seminole run twenty to twenty-five, Dunedin twenty-five to thirty by way of the Bayside Bridge, and Palm Harbor is honestly about half an hour. Phones are answered around the clock.
What you can see is the surface. Subfloor, wall cavities and insulation hold water long after a floor feels dry underfoot. EPA guidance is to dry water-damaged areas and materials within 24 to 48 hours, because in most cases that is what keeps mold from starting — and the only way to know a material is dry is to measure it.
By measurement, not by calendar. ANSI/IICRC S500 works from two reference points: a dry standard, which is a reasonable approximation of a material’s moisture content before the water got in, and a drying goal for the end of drying. The dry standard is commonly established by reading unaffected material of the same type in the same building, and readings are recorded as drying progresses.
Often, though not always, and it is decided by moisture readings rather than by how bad the cupping looks. Wood cups because the underside is wetter than the top, and specialty mat systems can draw that water back out through the surface. Two things usually end the conversation: water that sat long enough to delaminate an engineered plank, and contaminated water that got underneath. Sanding is the last step, never the first — a floor sanded flat before it finishes drying will crown as it dries.
Please leave it running. Drying is a continuous cycle of evaporation and dehumidification, so hours with the equipment off are hours the materials sit wet. Ask the crew to reposition or re-angle a unit if a room is impossible to sleep in, and if the running cost is the worry, raise it with your adjuster.
Usually not as a first step. EPA guidance is that sampling is generally unnecessary when mold is already visible, because the response is the same either way: fix the moisture and remove the growth. Testing earns its place in narrower situations — confirming a suspected hidden source, or documenting conditions when something is in dispute.
It can, and it is worth knowing before you file. Many homeowners policies draw a line between a sudden, accidental discharge and damage that developed gradually, and the wording varies from policy to policy. Read your own coverage and ask your adjuster directly rather than assuming it either way — and from the start, document what you found and when you found it.
Tell us what happened and we will call you right back. For emergencies, calling (727) 263-3778 is always fastest — we answer 24/7.
In Case of Property Damage, Call:
727-263-3778We answer around the clock and dispatch from right here in Clearwater.
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