Full Moisture Inspection
We check the interior and exterior with a moisture meter and thermal imaging camera to find every wet spot, not just the visible crack. The inspection covers grading, gutters, and the sump pump.
Seal cracks, dry your basement, and keep Washington rain outside
Foundation Crack Waterproofing in WA, Washington That Stops Leaks
Foundation crack waterproofing in WA, Washington seals the cracks that let groundwater into your basement or crawl space. We handle foundation leak repair WA homeowners call about after heavy rain, from hairline shrinkage cracks to wide settling fractures. If water is pooling near your foundation or your basement smells damp, we find the entry point, inject or seal it, and dry the space before mold takes hold.
Careful work. Honest options.
About this service
What Foundation Crack Waterproofing in WA, Washington Involves
Foundation crack waterproofing in WA, Washington is a structural repair and moisture-control service that seals cracks in concrete foundations, block walls, and slab floors so groundwater stays outside. We start by mapping the crack with an inspection camera and moisture meter, then clean it, inject polyurethane or epoxy resin under pressure, and finish with a flexible sealant that moves with the foundation. For block foundations we also address the hollow cores, because water travels through them and shows up far from the visible crack.
Western Washington gets roughly 38 inches of rain a year, most of it between October and April, and that constant wet-dry cycle works on every foundation. If you searched for foundation crack waterproofing near me WA after a storm, you are not alone. Clay-heavy soil in the Puyallup and Auburn areas holds water against the wall, and older Fife and Milton homes often have original 1950s concrete with no vapor barrier. That is why basement foundation crack repair WA calls spike every November.
- ✓ Stop Water Before Mold
- ✓ Protect Foundation Strength
- ✓ Keep Basements Usable
- ✓ Lower Energy and Repair Bills
What's included
What Our Foundation Crack Waterproofing Includes
Every job includes a full inspection, crack preparation, injection or sealing, and a moisture check before we leave. If the space is wet, drying is included. Drainage corrections and sump pumps are quoted separately if you need them.
Crack Preparation and Cleaning
We grind or wire-brush the crack, blow out dust, and install injection ports every 6 to 12 inches. Clean edges are what let the resin bond to the concrete and hold under pressure.
Polyurethane or Epoxy Injection
We inject resin at up to 3,000 psi to fill the full depth of the crack. Polyurethane expands on contact with water, so it seals active leaks; epoxy is used where structural strength matters.
Interior Drying When Needed
If the basement or crawl space is wet, we set up a Dri-Eaz dehumidifier and air movers and monitor with a hygrometer until framing and concrete reach normal moisture levels, usually 2 to 4 days.
Written Warranty and Photos
You get a written warranty on the repair, photos of the sealed crack, and a short list of maintenance steps like keeping gutters clear and grading soil away from the wall.
How it works
Our Foundation Crack Waterproofing Process
We walk the interior and exterior with a moisture meter and thermal imaging camera to find every wet spot, not just the crack you see. The inspection takes 45 to 90 minutes, and we check grading, downspouts, and the sump pump at the same time.
We grind or wire-brush the crack edges, blow out dust, and install injection ports every 6 to 12 inches. Proper prep is what makes the resin bond; skipping it is why DIY hydraulic cement fails within a season.
Polyurethane resin is pumped in at 200 to 3,000 psi until it fills the crack from the outside face inward. The resin expands on contact with water, so it seals active leaks. A typical crack takes 30 to 60 minutes to inject and cure.
If the basement or crawl space is wet, we set up a Dri-Eaz dehumidifier and air movers to bring framing and concrete back to normal moisture levels. Drying usually runs 2 to 4 days, and we monitor with a hygrometer each day.
We water-test the repair, re-check moisture readings, and show you photos of the sealed crack. You get a written warranty and simple maintenance steps, like keeping gutters clear and grading soil away from the wall.
STEP 01Inspect and Map
We walk the interior and exterior with a moisture meter and thermal imaging camera to find every wet spot, not just the crack you see. The inspection takes 45 to 90 minutes, and we check grading, downspouts, and the sump pump at the same time.
Tools & methods
Tools and Methods We Use
Thermal Imaging Camera
Finds temperature differences that reveal hidden moisture behind drywall and in foundation walls, so we seal every wet crack, not just the visible one.
Moisture Meter and Hygrometer
Measures moisture content in concrete, framing, and air so we know when the space is actually dry and when the crack is still letting water in.
Inspection Camera
Lets us see inside block foundation cores and behind finished walls to find where water is traveling and where the crack actually starts.
Polyurethane Injection Equipment
Pumps resin at up to 3,000 psi to fill the full depth of a crack. The resin expands on contact with water, which seals active leaks.
Dri-Eaz Dehumidifier and Air Movers
Dries wet basements and crawl spaces after sealing, bringing framing and concrete back to normal moisture levels in 2 to 4 days.
Water Extraction Unit
Removes standing water from crawl spaces and basements before we seal cracks, so the repair is not sitting in a puddle.
Real results
Before and after.
Foundation Crack Waterproofing
Basement Wall Crack in Downtown Puyallup
A 1950s home had water seeping through a stair-step crack in the block foundation every time it rained. The basement smelled musty, and the homeowner had placed towels along the wall for two winters.
After: We injected the crack and sealed the block cores, then dried the basement with a Dri-Eaz dehumidifier for 3 days. Moisture readings dropped from 28 percent to 12 percent, and the basement stayed dry through the next rainy season.
Book this service →
Foundation Crack Waterproofing
Crawl Space Flooding in Auburn
Storm water flooded a crawl space through two foundation cracks, leaving 4 inches of standing water and soaking the joists. The homeowner called after noticing a musty smell in the living room.
After: We extracted the water, dried the framing with air movers for 4 days, and sealed both cracks with polyurethane injection. We also installed a vapor barrier. Moisture readings returned to normal, and the smell cleared.
Book this service →
Foundation Crack Waterproofing
Block Foundation Leak in Northeast Tacoma
A block foundation was leaking in three places, but the homeowner only saw one crack. The other two were hidden behind finished drywall and had soaked the insulation and baseboard.
After: We used an inspection camera and thermal imaging camera to find all three cracks, removed the wet drywall, sealed the cracks, and dried the cavity. We replaced the drywall and insulation, and the wall has stayed dry since.
Book this service → Problems we solve
Foundation Leak Problems We Solve in WA
Most foundation leaks we see in Washington start with a crack and get worse with every wet season. Here are the problems homeowners call us about most.
Ask a pro →Water seeping through a basement wall crack
We inject the crack with polyurethane resin at up to 3,000 psi, which fills the full depth and seals active leaks. Then we dry the wall cavity and check grading so water stops reaching the wall.
Musty smell and damp air in a finished basement
We find the moisture source with a thermal imaging camera and hygrometer, seal the foundation crack, and run a Dri-Eaz dehumidifier until humidity drops below 50 percent. We also check the vapor barrier and sump pump.
Crawl space water after heavy rain
We remove the water with a water extraction unit, dry the space with air movers, seal the foundation cracks that let water in, and install a vapor barrier to keep the crawl space dry year-round.
Crack that keeps coming back after DIY hydraulic cement
We grind out the old patch, inject resin to the full depth of the crack, and verify with a water test. Our repair is warrantied, and we show you photos of the sealed crack before we leave.
Proof you can check
Licensed, Certified, and Warrantied
- IICRC WRT (Water Restoration Technician) · Institute of Inspection, Cleaning and Restoration Certification
- IICRC ASD (Applied Structural Drying) · Institute of Inspection, Cleaning and Restoration Certification
- EPA Lead-Safe Certification · U.S. Environmental Protection Agency
- Washington State Contractor License · Washington State Department of Labor & Industries
- L&I Registration · Washington State Department of Labor & Industries
Most single-crack injections run $350 to $650 in 2026, and full perimeter waterproofing runs $3,000 to $8,000. The price depends on crack width, whether the leak is active, and whether we need to dry the space first. We give you a fixed written price before work starts, and we tell you if a cheaper fix will do the job.
Licensed waterproofing and restoration contractors repair foundation cracks in WA, and you should ask for a Washington State Contractor License and L&I Registration before hiring. Our technicians hold IICRC WRT and ASD certifications and carry EPA Lead-Safe certification for older homes. We handle concrete, block, and slab cracks, plus the drainage work that keeps water away.
A single crack injection takes 2 to 4 hours, including prep and cure time. If the basement is wet and needs drying, add 2 to 4 days for dehumidifiers to bring framing back to normal moisture levels. Full perimeter waterproofing with a french drain usually runs 3 to 5 days, depending on access and soil.
Insurance usually covers foundation crack repair in WA when the crack is caused by a sudden event like a burst pipe or storm-driven flooding, not by long-term settling or poor drainage. We document the cause with moisture readings and photos and provide Xactimate estimates that adjusters accept. We can talk with your insurer directly to explain what we found.
Ready when you are
Get Foundation Crack Waterproofing in WA, Washington Today
Water through a foundation crack gets worse with every storm. Call our 24/7 line and we will inspect, give you a fixed price, and seal the crack before the next rain. Licensed, insured, and warrantied.
Call Now 1234567890 →
Request an appointment
Get water damage help now
Call us any hour, any day. A live person answers and dispatches a crew, and most Fife, Puyallup, and Tacoma addresses see us within 60 minutes. If you prefer email, send the details and we will call you back fast. We inspect first and give you a written estimate before work starts.
Call anytime1234567890Email the officeinfo@waterrestorationwashington.site
Office hoursOpen 24 hours · 7 days a week