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Slab Leak Detection & Repair
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Slab Leak Detection & Repair
Find It Fast, Fix It Right
Slab leak detection is where every repair has to start, because guessing at a slab leak’s location means tearing up far more of your floor than necessary. We provide non-invasive slab leak detection and repair for homes on concrete foundations throughout La Crescenta, La Cañada Flintridge, Montrose, Glendale, and Burbank. A hidden leak under your slab can cause serious structural damage if left unaddressed, but our advanced detection equipment helps us find and fix the problem with minimal disruption to your property.
Many of the older homes in this area sit on foundations with copper supply lines that are now decades old, which makes slab leaks a fairly common call for us. Our licensed technicians (California C-36 #1027398) use acoustic and electronic equipment to pinpoint the leak’s exact location before any demolition begins, so the repair stays as targeted and affordable as possible.
Our Slab Leak Services Include:
Advanced Leak Detection: We use acoustic and electronic leak detection equipment to pinpoint the exact location of a slab leak without tearing up your entire floor.
Minimally Invasive Repair: Depending on the situation, we offer targeted slab penetration, pipe rerouting, or trenchless repair options to fix the leak while minimizing damage to your home.
Early Warning Sign Evaluation: Unexplained high water bills, warm spots on the floor, low water pressure, or the sound of running water can all indicate a slab leak, and we investigate them quickly.
Re-Piping After Repeated Leaks: If your slab has had multiple leaks, we can discuss rerouting the line above the slab entirely to prevent future breaks.
Insurance Documentation: We provide clear documentation of the leak and repair, which is often needed for homeowner’s insurance claims.
A slab leak rarely gets better on its own, and catching it early is what keeps the repair manageable. You can verify our license anytime through the California Contractors State License Board. If you suspect a slab leak, call us at (818) 790-7270 or request service online and we’ll get a technician out to investigate.
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Slab Leak Detection & Repair
A slab leak is a failure in piping running beneath or within a concrete foundation. Because the pipe is enclosed, the damage often accumulates before anything becomes visible — which is why locating it precisely matters more here than almost anywhere else in a building.
Common indicators
- A warm or hot patch on the floor, often the first sign of a hot-water-side leak
- The sound of running water when nothing is on
- Unexplained increases in water usage
- Damp carpet, lifting flooring or persistent moisture at floor level
- Cracking in flooring or walls, or doors that no longer sit square
- Reduced water pressure throughout the building
Locating before opening
We confirm there is a pressurised loss, isolate which line it is on, then narrow the position using listening equipment, pressure testing and thermal or moisture readings across the slab. The point of this is simple: concrete is expensive to open and impossible to un-open, so the location needs to be right the first time. General leak work is covered under leak detection & repair.
Repair approaches
Once located, the options generally are: open the slab at the located point and repair the failed section; reroute that run through walls or ceiling to bypass the slab entirely; or, where the piping under the slab is failing in more than one place, repipe the affected system rather than chase individual leaks — see repiping. Which is appropriate depends on the pipe material, the number of failures, access, and the building’s construction. We explain the trade-offs rather than defaulting to one method.
Multi-unit and commercial buildings
In condominium and apartment buildings a slab leak can affect units above or beside the failure and may involve shared systems — see HOA & property management plumbing for access coordination and documentation.
FAQs
Do you always have to break the slab? No. Rerouting avoids it in many cases; which option is better depends on the specifics.
Is it urgent? An active slab leak is losing water continuously and can undermine the foundation and flooring, so it should not be left. If water is surfacing, treat it as an emergency.
Could a warm floor be something else? Occasionally — radiant heating, for instance. We confirm before recommending any work.
Call (818) 790-7270 or request service online. Serving La Cañada Flintridge, La Crescenta, Montrose, Glendale and Burbank. Licensed, Bonded & Insured — CSLB #1027398.