Hidden leaks can cause serious damage before you even see a drop of water. At John The Plumber & Drain, we use advanced leak detection technology to find the source quickly — whether it’s behind walls, under slabs, or in your yard — and repair it efficiently before it becomes a major problem.
Leaks often show up as water stains, high water bills, or wood rot. If you’re seeing any of these, we can help — with fast diagnostics, accurate repairs, and options that protect your home. For urgent basement or slab flooding, consider our emergency plumbing service (available 24/7).
Not all leaks are obvious. Some hide out of sight for weeks or months. Here are common signs that water may be escaping where you can’t see it:
Sudden spikes often mean leaking water somewhere in the system.
Water stains usually mean water is traveling through a hidden path.
Even without visible wetness, odors can suggest hidden moisture and growth.
Water damage beneath the surface can weaken structures over time.
If your meter spins with no fixtures running, that’s a red flag.
Leaks under slabs often show as wet spots or soft ground outside.
We use the most effective, non-destructive tools and techniques to locate leaks quickly without unnecessary damage to your home or yard.
Pinpoints water escaping in walls and floors without cutting first.
Detects the sound of leaks in pressurized lines you can’t see.
Shows temperature differences that can reveal wet zones behind surfaces.
Verifies where lines are losing pressure and where water is escaping.
Specialized techniques for water lines under concrete slabs.
For leaks in irrigation or exterior supply lines.
Left alone, leaks can cause structural damage, mold growth, and costly foundation issues. Fixing a leak early often saves thousands in repair costs.
Water damage weakens wood, drywall, and supports over time.
Stagnant moisture is a breeding ground for microbial growth.
Even small leaks can waste thousands of gallons over a year.
Early fixes are almost always less expensive than major restoration.
Leaks can reduce water pressure and stress your fixtures.
Leaks near water heaters or laundry lines can harm valuable systems — see water heater services.
Once a leak is found, we determine the right approach — from non-invasive fixes to full replacements — with minimal disruption to your home.
Fixing leaks in pressurized supply pipes throughout the home.
Old or damaged valves are a common source of hidden leaks.
Specialized fixes for leaks under concrete slabs — often via non-invasive methods.
Leaks at faucets, toilets, and appliance hookups — handled cleanly and quickly.
If damage is extensive, we replace only the affected section via pipe repair.
Leaks near water heaters or laundry? We link it to water heater services.
If you suspect a leak — visible or hidden — call John The Plumber & Drain. Our modern leak detection tools find problems fast, and our experienced plumbers fix them right.
Call 727-610-2262
