Serving Portland, OR & MetroLicensed · Bonded · Insured
Open 24/7 · Same-Day Service(971) 386-1515
Portland, OR · Non-Invasive · Same-Day

Leak Detection in Portland, OR

High water bill, a damp spot, or the sound of running water you can't find? We pinpoint hidden, slab and underground leaks the same day with acoustic, thermal and pressure testing — accurate to within inches, with no demolition.

Pinpoint AccuracyTo within inches
Non-InvasiveNo tearing up walls
Fee CreditedToward your repair
Workmanship GuaranteeBacked in writing
Leak Detection Portland

Leak detection — found precisely, fixed same day

  • Non-invasive detection — no guesswork
  • Upfront quote — flat-rate, no overtime
  • Licensed, bonded & insured in Oregon
  • Same-day leak detection and repair
(971) 386-1515
leak detection portland oregon
Licensed& Insured
Suspect a leak?

Signs of a hidden water leak

  • A spiking water bill with no change in use
  • The sound of running water with everything off
  • A warm spot on the floor (hot-water slab leak)
  • Low water pressure
  • Damp or discolored spots on walls, ceilings or floors
  • Mold, mildew, or a musty smell
  • Soggy patches or unusually green grass in the yard
  • New foundation cracks or buckling floors

Quick check: read your meter

Turn off every fixture and appliance that uses water, then watch your water meter's leak dial (the small triangle or dial). If it keeps moving, water is escaping somewhere — that's a hidden leak.

Seeing active flooding instead? Shut off your main valve and call us — that's an emergency.

How we find it

Non-invasive leak detection technology

We pinpoint the exact spot before opening anything — so the repair is small, targeted, and clean.

Acoustic listening

Sensitive ground microphones and listening discs hear water escaping a pressurized pipe through floors, walls and soil.

Infrared thermal imaging

Thermal cameras reveal the temperature change a hidden leak leaves behind walls, ceilings and under slabs.

Pressure testing

Static pressure and fixture isolation tests confirm whether a line is losing water and narrow down which one.

Moisture meters

Digital moisture and humidity meters map how far water has spread to trace it back to the source.

Electronic line locating

Pipe tracing and acoustic correlation follow metal and plastic supply lines underground so we dig only at the leak.

Video camera inspection

For drain and sewer lines, a camera shows breaks and intrusions on screen. We also use tracer gas on tough finds.

What we locate

Types of leaks we pinpoint

Slab leaks

Leaks in pipes under your concrete foundation, found without breaking the whole floor. Slab leak repair

Underground supply lines

Leaks in the main water line between the meter and your home. Water line repair

Behind walls & ceilings

Concealed pinhole and joint leaks in copper, PEX or galvanized lines inside the structure.

Pinhole & corrosion leaks

Tiny pinhole leaks in aging copper, plus the burst-prone galvanized and polybutylene in older Portland homes.

Under floors & crawl space

Drips and seepage in the crawl space or under flooring that fuel rot and mold.

Burst & active leaks

A pipe that's already let go and flooding. Burst pipe repair

What to expect

Cost & what happens next

You get a flat, upfront price for the detection — and we credit that fee toward the repair when we do the work. Once we've pinpointed the leak, we fix small, accessible leaks the same visit and quote anything larger before starting.

Standard leak detection visit$250 – $500
Complex slab / underground locating$400 – $900
Detection fee credited toward repairYes

Estimates for guidance; your price depends on access and leak type. Hidden water damage is often covered by homeowners insurance, and our findings help document your claim.

Why act fast

A slow hidden leak quietly feeds mold, rots framing, ruins flooring and can undermine a foundation — all while running up your water bill. Catching it early is far cheaper than repairing the damage later.

We're licensed (), bonded and insured, and available same-day across the Portland metro.

High bill or a leak you can't find?

We'll pinpoint it the same day — no demolition, flat upfront pricing, and the detection fee credited toward your repair.

portland plumber leak detection specialist
Open24 / 7
Portland's same-day plumbers

Local, licensed help for Leak Detection

From the first call to a clean finish, our licensed Portland plumbers handle leak detection with upfront, flat-rate pricing and no overtime fees — day, night, weekends and holidays.

Call (971) 386-1515
FAQ

Leak detection questions

Not sure where the water's coming from? Call and we'll find it.

Talk to a plumber
How do you find a hidden water leak without damaging my home?

We use non-invasive tools — acoustic listening discs, infrared thermal imaging, pressure testing, moisture meters and electronic line locators — to pinpoint a hidden leak to within inches before opening anything. No guesswork, no tearing the house apart.

What are the signs I have a hidden water leak?

A spiking water bill, the sound of running water with everything off, a warm spot on the floor, low pressure, damp or discolored spots, mold or a musty smell, and new foundation or yard wet spots.

Why is my water bill so high when I don't see a leak?

A hidden slab, underground, or in-wall leak can waste hundreds of gallons with no visible sign. Turn off all water and watch the meter's leak dial — if it moves, you have a leak. We locate it the same day.

How do you detect a leak under a concrete slab?

We combine acoustic listening, thermal imaging and line tracing to pinpoint a slab leak without breaking the whole floor. For the repair, see our slab leak repair service.

Can you locate an underground or main water line leak in my yard?

Yes — electronic line locating and acoustic correlation trace both metal and plastic supply lines underground, so we dig only where the leak is. See water line repair.

How long does professional leak detection take?

Most visits take one to two hours depending on access and leak type. We give you the findings and a repair quote before any work begins.

How much does leak detection cost in Portland?

Typically about $250–$500, with complex underground or slab locating toward the higher end. You get an upfront flat price — and we credit the detection fee toward the repair.

Do you fix the leak the same day you find it?

Yes — most small, accessible leaks are repaired the same visit. Bigger jobs like a slab reroute, burst pipe, or service-line replacement are scheduled fast.

Are you licensed and insured in Oregon?

Yes — a licensed Oregon plumbing contractor, bonded and insured, with experienced, background-checked plumbers.

Can a small leak really cause serious damage?

Yes — even a slow hidden leak feeds mold, rots framing, ruins flooring, and can undermine a foundation while quietly running up your bill. Finding it early is far cheaper than the damage.