Wet drywall and subfloor can look dry within a day while the framing behind it still holds enough moisture to grow mold. One call to Water Heater Repairer connects you with an independent drying specialist near San Antonio who meters, maps and documents the structure until it is truly dry.
Structural drying is controlled psychrometrics, not a few box fans pointed at a wet carpet.
Every contractor we route to in San Antonio is an independent, licensed and insured business. Many are IICRC-trained in the S500 water standard, so ask for credentials when they arrive.
Drying is a race against wicking, so we prioritize contractors with dehumidifiers and air movers already loaded. Many arrive within the hour, though that depends on distance and storm volume.
You get the drying scope, the number of units and how they bill in writing before setup starts. That written scope heads off disputes over equipment days later.
The basic toolkit is pin and pinless meters, a thermo-hygrometer and a thermal camera. Those tools turn a guess into a dated moisture map.
A familiar call goes like this: the leak got fixed, the floor feels fine, and yet the room smells musty a week later. The answer is usually trapped moisture in bottom plates, wall cavities and the subfloor under the pad. That is exactly what a structural drying contractor is there to find and remove.
Callers also ask about the noise and what the equipment will do to the electric bill. A typical setup runs several air movers and one or two dehumidifiers around the clock, and the contractor should check circuit loads before plugging everything in. Running it right for a few days costs far less than replacing cupped flooring, delaminated cabinets or moldy drywall later.
Every job opens with a moisture map and closes only when all readings reach target.
First, the pro reads a dry standard off unaffected materials elsewhere in the house. That figure, near the material's equilibrium moisture content, sets the goal each wet spot has to hit.
LGR dehumidifiers pull water out of warm, damp air down to low grains per pound. In cold basements or with hardwood and plaster, a desiccant unit keeps drying where refrigerant coils fall off.
Axial fans move big volumes over open floors; centrifugal units aim tight, fast air along wall bases and under cabinets. Placement follows the wet map, not a guess.
Instead of tearing out drywall, many contractors pull the baseboard and drill small holes into the cavity behind it. An injection system pushes dry air through hoses into each stud bay, and the trim hides the holes afterward.
Wet hardwood cups as the bottoms of the boards swell faster than the tops. Sealed drying mats or panels draw moisture up through the wood with steady suction.
A closed chamber uses poly sheeting to box in the wet zone, so the dehumidifier treats less air. It dries faster and keeps the noise and electrical load out of the rooms you are living in.
Here is what a properly run drying job looks like from start to finish.
Tell us where the water came from, how long it sat and which rooms are affected. That tells us if it is a drying job or an extraction job first, and we send the right contractor.
The contractor arrives with meters, a thermal camera and an opening load of dehumidifiers and air movers. Before moving furniture, they scan walls with the thermal camera to see how far water has wicked.
You get a written scope: evaporation class, drying goals, equipment count, expected days and how billing works. Nothing runs until you approve it.
The contractor returns daily to log readings, adjust equipment and pull units as areas reach goal. The final drying log, with every reading dated, is yours for the insurance file.
Fans by themselves just stir humid air around; they do not take the water out. As relative humidity rises, vapor pressure in the room catches up to the wet material and drying stalls. If nobody is controlling grains per pound, the studs and subfloor can sit wet for weeks.
| Evaporation class | What it usually means |
|---|---|
| Class 1 | Limited wetting, low-porosity materials |
| Class 2 | Whole room, carpet and pad wet, wicking under two feet |
| Class 3 | Water from above, ceilings and walls saturated |
| Class 4 | Hardwood, plaster, concrete or deep pockets of bound water |
Get a structural drying contractor in San Antonio metering it today.
Our dishwasher leaked overnight and the kitchen floor looked fine by lunch. The drying contractor found the oak reading way above a dry board in the hallway and set up panels on it. It ran five days, and the boards stayed flat.
The insurance adjuster tried to knock two days of equipment off the claim. I forwarded the daily drying log with readings for each wall, and the claim went through as written. Having those numbers made the conversation short.
I run a small office, and a toilet supply line flooded three rooms on a Friday. The contractor drilled behind the baseboards and injected air into the walls instead of cutting drywall. They tented off the wet rooms, so the front office stayed open.
The water heater failed in our basement and we just ran box fans for a week. It still smelled, so we called and the contractor put a thermal camera on the walls. Moisture had climbed nearly two feet behind the paneling, and a desiccant dehumidifier plus daily readings finished the job.
A typical Class 2 job hits goal in about three to five days. Hardwood, plaster and concrete can take longer because water is bound deeper in the material. Daily readings, not the calendar, decide when equipment comes out.
Each wet wall is measured against a dry standard read from untouched drywall elsewhere in the house. When the wet readings match that baseline, the area has reached its goal.
Not always. With clean water and uninsulated cavities, injection drying through small holes behind the baseboard can save the drywall. Soaked insulation, dirty water or visible mold generally calls for cutting the wall.
Turning them off lets humidity climb and restarts the clock on mold growth. A closed chamber can keep the noise and electrical load inside the wet rooms, so ask about one.
An LGR unit uses refrigerant coils and works best in warm, occupied spaces. Desiccant units use a moisture-absorbing wheel and keep pulling water in cold spaces or from dense materials.
Getting drying mats on quickly gives the boards their best shot at flattening out. Slight cupping often eases as moisture evens out, which is why pros advise waiting before sanding.
Drying calls get routed to contractors across San Antonio and the surrounding suburbs, including 78112 78239 78259 78258 78252 78251 78250 78257 78256 78255 78254 78208 78201 78202 78203 78204 78205 78207 78231 78230 78233 78232 78235 78234 78237 78238 78209 78109 78266 78264 78260 78219 78218 78217 78216 78215 78214 78213 78212 78211 78210 78244 78245 78247 78240 78242 78248 78249 78073 78023 78222 78223 78220 78221 78226 78227 78224 78225 78228 78229 78206 78241 78246 78265 78268 78269 78270 78278 78279 78280 78283 78284 78285 78288 78289 78291 78292 78293 78294 78295 78296 78297 78298 78299. Downtown condo or edge-of-town split-level, the method does not change: meter it, map it, dry it and log it.
Plaster walls and old-growth hardwood hold water longer and usually need desiccant drying.
Shared walls mean water travels sideways, so the moisture map often extends next door.
Finished basements and slab homes outside San Antonio get the same metered approach.
Whether the water came from a supply line, a water heater or an upstairs bathroom, call as early as you can. Every hour of delay lets water climb higher into drywall and deeper into framing.
Call +1-877-637-9008
