Leak Detection

A hidden leak announces itself sideways: a water bill that jumps for no reason, a warm patch on the floor, a musty smell you can't place. Gallegos Plumbing has located and repaired hidden leaks across Ventura County since 1996 — including slab leaks under the foundation — with licensed, background-checked technicians and a 100% satisfaction guarantee.

Signs of a Hidden or Slab Leak

Watch for an unexplained spike in your water bill, the sound of running water when everything is off, warm spots on a concrete floor (a hot-water line leaking below), hairline cracks in walls or flooring, musty odors, or a drop in water pressure. Any one of these is worth a call before it becomes foundation damage.

Pinpointed Electronically — Before We Cut Anything

Guesswork is what makes leak repairs expensive. We use electronic detection — acoustic listening equipment and pressure isolation testing — to pinpoint the leak's location through the slab or wall first. That means opening one small spot for the repair instead of chasing the leak through your house.

Spot Repair, Reroute, or Repipe

Once the leak is located, there are three honest options: repair the pipe at that spot, reroute that line overhead so the slab stays sealed, or — when aging copper is failing in multiple places — a whole-home repipe that ends the leak-of-the-month cycle for good. We'll show you what the pipe's condition supports and let you choose.

Upfront, Honest Pricing

You approve a flat, upfront quote before any work starts — for the detection and for whichever repair you choose once we've found the leak.

Water spreading right now?

Gallegos Plumbing · 1593 Palma Dr, Ventura, CA 93003 · (805) 750-1830

Rated 4.9 from 1,792+ reviews. CA Lic. #1022795.

“Requesting leak detection services is never a positive experience, or so I had previously thought. When Jordan Gobbell arrived to service my home, I relaxed and became hopeful. Jordan is the consummate professional but more importantly, he is a terrific human! Jordan did the testing, made recommendations and then took personal interest in helping me problem-solve what has become a very frustrating situation. He could have just done his job but instead he went above and beyond in the way that best friend or treasured family member might. This type of service and caring is hard to find these days. You can't train someone to be like Jordan. Either you have the heart, or you don't. Heart, personality, expertise and empathy! Jordan Gobbell has it all, something that I am most grateful for today. Josh Duran recently came to help me with a different problem in two of my bathrooms. Although I felt very frustrated, Josh was calm and supportive throughout the entire process. His recommendations were greatly appreciated! Most importantly, he gave me many options and guidance the way a family member might. So happy with the end result! Through some his recommendations, I am already planning my next projects. Most importantly, I felt very comfortable with Josh, was happy with the quality of his work and look forward to having him back for my next plumbing project.” — Denise Abdun-Nur, Ventura

“I have been using Gallegos plumbing for years for my personal home and my rental and they always do a great job. Today Noah came out to replumb the dishwasher hookup because it was not done properly and caused me to have to repair the dishwasher prematurely. He completely explained why this needed to be done. Luckily he also found a slow leak at the supply valve and replaced the pipe in the wall. He was extremely professional, knowledgeable and courteous. I've never had a bad experience with Gallegos and wouldn't consider calling anyone else” — Marty Meyer, Ventura

“They were hired to stop a water leak outside. It turned out the builder did not use stronger schedule 80 PVC that connected to copper. Gallegos replaced PVC with copper and installed a regulator after the meter. The job took two days and about ten hours to complete. I am very happy with the outcome and will be recommending them to my neighbors. On the next morning the water pipe burst sending a river into the street. I had to shut the water at the meter. Called Gallegos Plumbing with emergency request. After a few hours they sent Nick Sendrow. He did replace some PVC pipe and covered up the dug up soil. He did a great job and the problem seems to be resolved. I feel Gallegos Plumbing is a responsible and high quality company.” — Andrew Wroblewski, Ventura

Frequently Asked Questions

How do I know if I have a slab leak?

The classic signs: a water bill spike with no change in habits, the sound of running water when every fixture is off, warm spots on the floor, cracks appearing in walls or flooring, musty smells, or falling water pressure. Two or more together make a slab leak very likely.

What is the easiest way to find a water leak myself?

Turn off every fixture and appliance that uses water, then watch your water meter for 15–30 minutes. If it's still moving, water is escaping somewhere. That test confirms a leak exists — electronic detection is what finds exactly where it is.

How much does leak detection cost?

You approve a flat, upfront quote before we start. Precise detection is what keeps the total project affordable — pinpointing the leak means one small access opening instead of exploratory demolition across your home.

How do you fix a slab leak?

Three ways: open the slab at the pinpointed spot and repair the pipe, reroute that line overhead so the foundation stays untouched, or repipe when the plumbing is failing in multiple places. Which one makes sense depends on the pipe's age and condition — we show you the evidence and you choose.

Does homeowners insurance cover a slab leak?

Policies commonly cover the resulting water damage and the access work, but not the failed pipe itself — and every policy differs. We document what we find, which gives you solid evidence for a claim.

How long can a water leak go unnoticed?

Months — slab and underground leaks have no visible drip, so they often run until a bill spike or floor damage gives them away. That's why an unexplained jump in water usage is worth investigating immediately.