Step 1
Isolate
We pressure test sections to narrow the leak down before opening anything.
San Bernardino County · 91758 · 91761 · 91762 · 91764
Leak Detection & Slab Leak Repair in Ontario, CA
We locate leaks in Ontario with acoustic and pressure testing before anything gets opened up, then repair or reroute — whichever costs you less in the end.
Licensed #1146179 · Roughly 15 minutes south of Upland.
Why this comes up in Ontario
Older north Ontario homes often have cast iron drains that scale shut, while the new south-end tracts mostly need warranty-adjacent fixture and pressure work. On slab-built streets around Downtown Ontario, a pinhole under the concrete can run for months before it shows up as anything but a higher bill.
The expensive part of a hidden leak is guessing. We pinpoint it with acoustic listening, pressure isolation and thermal imaging, then fix or reroute.
Detection is quoted separately from the repair, so you know what finding it costs before you commit to fixing it.
Signs it is time to call
- Water bill jumped with no change in use
- Warm spot on a tile or vinyl floor
- Sound of running water with everything shut off
- Cracks in slab or damp baseboards
- Mildew smell in one specific room
How the job runs
Step 2
Pinpoint
Acoustic and thermal tools mark the exact spot.
Step 3
Repair or reroute
Often an overhead reroute beats breaking concrete — we'll price both.
Neighborhoods we cover in Ontario: Downtown Ontario, Euclid Avenue corridor, Ontario Ranch, Creekside, West Ontario.
Leak detection & slab leaks questions from Ontario customers
Do you have to jackhammer the floor?
Not always. Rerouting the line overhead or through a wall is often cheaper and less disruptive than opening the slab. We price both options.
How do you confirm the leak is really under the slab in Ontario?
We isolate the system, pressure test it, and use acoustic equipment to pinpoint the spot. You see the readings, not just a conclusion.
Will my insurance cover it?
Many policies cover the resulting water damage rather than the pipe itself. We document the findings clearly so you can file with real evidence.
Other work we do in Ontario
Leak detection & slab leaks in nearby cities
Need leak detection & slab leaks in Ontario? Level up your pipes.
Talk to a real plumber, get a straight answer and a clear price before we start.