
Sanibel
Leak Detection
Non-Invasive Electronic Leak Location by McGrath Plumbing
Serving Sanibel Homeowners & Businesses Across Southwest Florida — Since 2004!
⭐ Rated 4.8 Stars on Google
✅ Family-Owned • ✅ Licensed & Insured • ✅ 24/7 Emergency • ✅ Background-Checked • ✅ Locally Owned
Sanibel’s Trusted Leak Detection Pros
A water bill that doubled. The sound of running water when everything’s off. A damp spot that shouldn’t be there. If something’s leaking in your Sanibel home and you can’t see where, McGrath Plumbing finds it with non-invasive electronic leak detection — no exploratory holes, no torn-up finishes on a guess.
Sanibel’s mix of elevated construction and high-end finishes makes precise location essential. In a stilt home, some plumbing is accessible below — but the leaks that matter hide in walls, chases, and slabs-on-grade, and the island’s salt drives pinhole leaks faster than the mainland. We pinpoint it to inches, then fix it.
Leak Detection Services We Provide on Sanibel
Electronic Leak Detection
Acoustic listening and line tracing pinpoint hidden leaks in walls, chases, under slabs, and underground — located to inches, not rooms.
Elevated-Home Leak Tracing
Stilt homes route supply lines through vertical chases and along the underside of the house. We trace leaks through these island-specific runs precisely.
Slab & Ground-Level Leaks
Ground-level enclosures and slab-on-grade sections on Sanibel homes develop leaks in the salt environment. We locate them before opening anything.
Irrigation, Pool & Seawall Lines
Sanibel’s Gulf-front and canal homes run pool, seawall, and irrigation plumbing. We trace mystery water loss across the whole property, not just the house.
Why Leak Detection Matters on Sanibel
Salt drives pinhole leaks faster on the island. Sanibel’s barrier-island salt air corrodes copper supply lines from the outside while our aggressive water attacks from within — so pinhole leaks develop sooner here than on the mainland, and in elevated homes the exposed runs corrode faster still. Warm damp spots, running-water sounds, or a water heater that never rests are the tells, and we locate the leak precisely before touching a finish.
Elevated homes hide leaks in chases. Sanibel’s stilt construction routes supply lines up through vertical chases into the living space — and a leak in a chase can travel and hide before it shows. Some plumbing is accessible below the house, but the leaks that cause damage are often in the walls and chases above. Electronic tracing finds them without opening the whole run.
Post-Ian stress surfaces as leaks. The stress of Ian’s flooding and the frantic rebuild left some Sanibel plumbing with shifted fittings and stressed joints that are only leaking now. If your water use climbed after the storm or the rebuild, a hidden leak may be the reason, and we can find it.
High-end finishes and outdoor runs. Sanibel’s homes carry finishes worth protecting, and their Gulf-front and canal lots run pool, seawall, and irrigation plumbing across salt-exposed ground. When a bill spikes and the house checks out, the leak is often outdoors. We trace the whole property.
How Do You Find a Leak Without Tearing Up My Home?
Acoustic equipment listens for the signature of pressurized water escaping a pipe; line locators map exactly where your plumbing runs; pressure testing isolates which line is losing water. Together they let us mark a leak within inches — so if a repair does need an opening, it’s one small precise spot, whether in an elevated home’s chase or a ground-level slab.
Detection is quoted upfront, the $68 service call applies toward the work, and you’ll see the evidence yourself before any repair decision — we show you, not just tell you.
Also see our full Sanibel plumbing services, slab leak repair across SWFL, and 24/7 emergency plumbing on Sanibel.
Sanibel Leak Detection FAQs
Can you find a leak in my elevated Sanibel home?
Yes — stilt homes route supply lines through vertical chases into the living space, and leaks there can hide and travel. We trace them precisely through the island-specific runs, so you don’t open the whole chase to find one spot.
My water use climbed after Ian or my rebuild. Could it be a leak?
Possibly — the storm’s flooding and the rebuild stress left some Sanibel plumbing with shifted fittings and stressed joints that are only leaking now. If your bill rose without explanation, we can trace it and find the source.
Can you find a leak without damaging my finishes?
Yes — that’s the point of electronic detection. We locate the leak to within inches before anything is opened, so repairs are surgical, not destructive — important with the finishes in Sanibel homes.
My water bill doubled but I can’t find a leak. What now?
On a Sanibel Gulf-front or canal home it’s often out in the pool, seawall, or irrigation plumbing, not the house. We check for running toilets first, then pressure-test and trace the full property.
I’m seasonal — can you check for leaks while my home is closed up?
Yes — we do pre-departure pressure tests and can coordinate with your property manager. A silent leak in an empty Sanibel home is the most expensive kind.
How much does leak detection cost on Sanibel?
It’s quoted as a flat visit upfront, and the $68 service call applies toward it. If we repair the leak, detection and repair are quoted together before work starts — no surprises.
THINK YOU HAVE A LEAK ON SANIBEL?
Electronic Detection • Elevated-Home & Slab Leaks • Outdoor Lines — 24/7
McGrath Plumbing, Drains & Water Heaters of Bonita Springs • Serving Sanibel, FL • FL Lic. CFC1432700
Or email: dave@mcgrathplumbingnaples.com


