Moisture mapping, extraction and structural drying for Seattle houses, whether the water came down from the roof or up from the ground.
Fastest: call (833) 490-5225. Or send this and we call you back.
Seattle Water Damage Restoration handles water damage restoration across Seattle and King County: finding every wet material, extracting standing water, drying the structure to measured readings and listing what has to be rebuilt. Phones are answered 24/7, scheduling is same day when a technician is free, and the price is put in writing before work begins.
Seattle water damage rarely arrives the way it does in a flat, dry city. The rain is steady rather than dramatic: roughly three-quarters of the year's rainfall comes between October and March, so a house can sit wet for weeks before anyone notices. A roof that shed water fine in July starts weeping into the attic by December, and a hillside lot that was dry all summer starts pushing groundwater against the foundation wall.
That gives this city three directions of attack. Water comes from above, through moss-covered roofs, clogged gutters and worn flashing. It comes from below, through basement slabs, daylight-basement walls and crawl spaces that collect winter groundwater. And it comes from inside the walls, where original supply lines in Craftsman and mid-century houses corrode and let go. About half of Seattle's housing was built before 1960, so those older pipes and older foundations are the rule, not the exception.
Restoration is the full path from wet to ready for repairs: a moisture inspection, extraction, controlled drying with air movers and dehumidifiers, and an honest list of what could not be saved. Repairing the pipe belongs to a plumber, fixing the roof belongs to a roofer, and the side sewer that serves your house belongs to you. The technician dries and cleans everything the water reached, and tells you which of those other trades you still need to call.
Do not step into standing water in a basement if it has reached an outlet, a power strip, the furnace or the water heater, and do not use a household shop vacuum on sewage or flood water. Call (833) 490-5225 and wait somewhere dry.
The technician checks for electrical hazards near the wet area, confirms the water supply is closed if a pipe is involved, and works out where the water started: roof, wall, floor, ground or drain. If a plumber, roofer or side-sewer contractor is needed, you hear that at the start so the drying is not held up.
Pin and pinless meters and a thermal camera mark how far the water traveled, how high it climbed a wall, and whether it crossed into a crawl space or the room below. Every reading and photograph is logged from the first visit, which gives you a record to send with an insurance claim.
Portable extractors pull water out of carpet and flooring, and pumps handle deeper standing water in a basement. Pad that has turned to sponge, swollen cabinet bottoms and saturated drywall are cut back so air reaches the framing, and nothing comes out until you have agreed to it.
Air movers and low-grain refrigerant dehumidifiers run while the technician returns to re-read the same points. The goal is a reading taken off an unaffected wall in the same house, because a Seattle winter keeps the air damp and surfaces can feel dry while the stud behind them is not.
When the numbers agree, you get a list of what needs rebuilding: drywall, insulation, trim, flooring. Repairs are priced on their own once drying is signed off, and you decide who does that work.
Four things drive the final bill: the wet area, the category of water, the materials it soaked and how many days of drying the readings call for. Washington prices for this work were not available to us, so the figures below are national and labeled that way.
| Job | Typical range | What it includes |
|---|---|---|
| Typical total for a water damage job (national) | $1,305–$5,707, average about $3,455 | Bob Vila, citing Angi and HomeAdvisor data; a national figure, not a Seattle price |
| Average spend per job (national) | $1,364–$6,301, average about $3,833 | HomeAdvisor 2025; the same guide gives $3.50–$7.50 per sq ft nationally |
| Cost per sq ft by water category (national) | Category 1 $3–$4, Category 2 $4–$6.50, Category 3 $7–$7.50 | Repeated across several national guides; not a Seattle quote |
| Basement or crawl space jobs | Quoted on site | Depth of water, pumping time and access through a hatch or stairwell change the work |
Estimates only. Every dollar figure above is a national figure from the publisher named, not a Seattle or Washington price. Your own price is confirmed on site, and put in writing, before any work starts.
Stop the source if you can, keep out of water that touches outlets or cords, and take photographs before moving anything. Lift valuables off wet floors, open interior doors for air, and call. The EPA advises drying water-damaged materials within 24 to 48 hours to head off mold.
The shut-off matters most when a pipe is the cause. Many Seattle houses have the main valve where the line enters the basement wall or crawl space, and an older house may have a corroded valve that has not turned in decades. Find it in daylight, turn it once, and know that it works before you need it.
Rain-season water is different, because you cannot shut it off. If it is coming through a roof or foundation wall, the job is to protect what is under it: move furniture, lay towels, and set a bucket where it drips. Do not climb onto a wet roof, and do not go into a basement with standing water that has reached an outlet or the furnace.
October through March is cool and humid, which slows evaporation, so equipment runs longer than it would in a dry climate. Drying relies on dehumidifiers more than on warm air, and a house with plaster walls or a closed crawl space can need extra days before the readings settle.
A technician in a hot, dry city can lean on heat and outside air. Here, opening windows during a December drizzle brings in more moisture than it removes. The standard approach is a closed system: dehumidifiers pull water out of the air, air movers push dry air across wet surfaces, and the doors stay shut.
Older houses add their own wrinkle. Lath and plaster holds water differently from drywall, tongue-and-groove fir floors can cup if they are dried too hard, and a crawl space that stays wet underneath will keep feeding the floor above. For that reason a final reading is taken on the framing and subfloor, not just the surface.
The restoration crew extracts and dries. A plumber repairs pipes and water heaters, a roofer repairs the roof, and a side-sewer contractor repairs the line from the house to the street, which the homeowner owns. Seattle Public Utilities does not clean inside homes after a sewage backup.
Washington requires construction contractors to register with the Department of Labor & Industries under chapter 18.27 RCW, and an unregistered contractor can face penalties. We could not confirm whether extraction or drying alone falls under that rule, so ask any company for its L&I registration and check it on L&I's website before you sign. No restoration-specific state licence turned up in our research.
Ask, too, for a written scope and a written price. A clear estimate lists the rooms, the equipment, the number of drying days and what happens if the readings call for more. The contractor-hiring guide walks through the lookup.
Often yes. Plaster, solid wood trim and fir flooring tolerate drying in place better than modern composites, and a technician opens only where a meter shows trapped water. A flood cut is made when insulation or a sealed cavity will not dry, and it is explained first.
Each material gets its own call. Carpet and pad from a clean-water leak may be dried and kept, while the same carpet after sewage is discarded. Plaster that stayed intact usually dries in place, but plaster that has gone soft and crumbly will not recover.
Mid-century houses with hollow-core doors, particleboard cabinet bases and vinyl over plywood tend to lose more material than Craftsman bungalows with milled lumber, simply because composite materials swell and do not return. The meter, not the age of the house, decides.
Moss on shingles holds moisture against the roof for months, gutters clog under fir needles and maple leaves, and wind-driven rain finds flashing gaps around chimneys and skylights. The water often travels along a rafter before it stains a ceiling, far from the actual entry point. Roof leak water damage and ceiling water damage cover those paths.
On a sloped lot, winter groundwater presses on foundation walls, window wells overflow, and failed drain tile lets water seep through the floor-wall joint. A vented crawl space can collect standing water that sags the insulation overhead. See basement water damage and crawl space water damage for how each is handled.
Original galvanized supply lines corrode from the inside and can fail behind plaster without warning, while cast-iron and clay drain lines crack and clog with roots. A supply failure is clean water at first; a drain or sewer failure is not. Burst pipe damage and sewage backup cleanup explain the difference.
Seattle sits between Puget Sound and Lake Washington on ground that rises sharply from the water, so lots slope, retaining walls multiply and drainage runs downhill toward somebody's foundation. About 8.4 percent of the city is mapped as slide-prone, and most slides are shallow and happen in winter, which is the same stretch of the year when basements take water. Where a wall holds back a hillside, ground water is not a freak event but a seasonal visitor.
Roofs here live in a wet, shaded setting under evergreens. Moss, needles and fir pitch stay on shingles through months of drizzle, gutters fill, and water backs up under the edge of the roof. A slow leak can soak attic insulation for weeks, because the stain only shows once the drywall below is saturated.
Daylight basements and finished lower levels are a distinct feature of hillside housing. About a quarter of the residential sales recorded by the NWMLS in 2024 were homes with a basement, mostly in older neighborhoods. We have no figure for the share of the whole housing stock, so we say only that many older and hillside houses have them, and they are where the first water of the season usually settles.
A crew is dispatched as fast as one is available, and you approve the estimate before any work starts.
Not sure if you're covered? Check your ZIP code.
Pumps, extractors and moisture checks for standing water in Seattle basements, lower levels and living areas.
Extraction and drying for Seattle basements and daylight basements where winter groundwater, window wells or old drains let water in.
How a wet Seattle house is dried to measured readings, from plaster and fir floors to basement slabs and crawl spaces.
A moisture-led mold inspection for Seattle homes, with a written scope you can use whoever does the removal.
No Seattle or Washington price for water damage restoration was found in our research.
Washington requires construction contractors to register with the Department of Labor & Industries under chapter 18.27 RCW, and you can check a company on L&I's website.
Mold can start on wet drywall and wood within a day or two in a damp climate, and the EPA advises drying water-damaged materials within 24 to 48 hours.
No restoration-specific state licence turned up in our research. Construction contractors register with the Department of Labor & Industries under chapter 18.27 RCW, and we could not confirm whether drying alone requires it. Ask for the company's L&I registration and look it up on L&I's site before work starts.
A single room often needs three to five days of equipment, and a whole finished lower level can need a week or more. Cool, damp winter air slows evaporation, so the technician reads moisture at each visit and removes equipment only when the framing and slab reach the dry goal.
Only where a meter shows water trapped inside them. Intact plaster often dries in place, while plaster that has softened or crumbled is removed. Any opening is explained and photographed first, and lath that is sound is left to dry along with the framing behind it.
Usually not between October and March. The outdoor air is humid, so open windows can add moisture rather than remove it. A closed room with a dehumidifier and air movers dries faster. A technician sets the plan after reading the room.
Often yes, if the wet area is a single room or a basement. The equipment is loud and runs day and night. If water reached a kitchen, the only bathroom or the main living level, or if the source was sewage, staying elsewhere for a few nights is easier.
Ask for the denial in writing and the policy language behind it. Many Washington policies exclude ground-water seepage, and flood needs its own policy. Keep the photographs and moisture log, because they document what happened whatever your insurer decides.