Protect your foundation — professional slab leak detection and repair throughout Portland metro.
A slab leak — a pipe leaking beneath your concrete foundation — is one of the most serious plumbing problems a Portland homeowner can face. Undetected slab leaks erode soil, crack foundations, cause mold, and waste thousands of gallons of water.
PNW Plumbing LLC provides professional slab leak detection and repair throughout Portland, Oregon. We use precise diagnostic methods to locate the leak accurately before opening the slab — minimizing concrete cutting and protecting your home's structure.
If you recognize any of these, call PNW Plumbing at 503-957-8703.
A warm patch of flooring — especially on hardwood or tile — often indicates a hot water pipe leaking below the slab.
Hearing water running when everything is off, especially at floor level, is a strong indicator.
A sudden and unexplained increase in your water bill can point to a slab leak — even without visible water.
Slab leaks erode the soil beneath the foundation, causing settling and cracking above grade.
Moisture coming up through floors, carpet soaking from below, or warping hardwood floors.
Persistent moisture from below creates ideal conditions for mold growth at floor level.
Every job follows the same straightforward process — no surprises.
Using pressure testing and acoustic detection equipment, we locate the leak precisely before opening any concrete — minimizing damage.
Depending on leak location and pipe condition, we present options: direct slab access repair, rerouting the line through walls/ceiling, or epoxy pipe lining.
We complete the repair using the safest, most cost-effective method for your specific situation.
Post-repair pressure test confirms the leak is fully resolved. We can also coordinate with concrete contractors for slab patching.
Slab leak repair costs vary widely: $500–$1,000 for simple reroutes, $1,500–$4,000+ for direct slab access repairs depending on location and depth. We provide free upfront estimates after detection.
No. Our precision detection minimizes the area we need to open. In many cases, we can reroute the leaking line through walls or ceilings to avoid opening the slab at all.
Many homeowners insurance policies cover the cost of accessing and repairing the leak, but not the pipe itself. Check your policy — we can provide documentation for your claim.
Very urgent. Slab leaks cause continuous water damage, mold growth, and foundation erosion. Don't delay — call 503-957-8703 as soon as you suspect one.