Rooter Rescue Plumbing logo — 24/7 emergency plumber
Non-invasive leak detection

Leak Detection & Slab Leak Repair in Los Angeles

High water bill? Warm spot on the floor? Sound of running water when everything is off? We pinpoint hidden leaks under slabs, inside walls, and underground with electronic equipment — so we open one small spot, not your whole floor.

  • Live answer 24/7
  • Flat-rate, no overtime fees
  • Licensed contractor sent
  • Satisfaction guaranteed

Dispatchers available now

Get a flat-rate price for leak detection & repair

  • Price in writing before work starts
  • Same rate nights, weekends & holidays
  • Ask about this month's coupons
Call 877-481-4075Request a free quote online
  • Licensed Contractor

    We send one right to your door

  • 24/7 Emergency Service

    Nights, weekends & holidays

  • Satisfaction Guaranteed

    100% on every single job

  • 15+ Years Experience

    Trusted by local homeowners

Leak Detection & Repair

Find the leak first — then fix it with the least damage

A hidden water leak is one of the most expensive problems a homeowner can ignore. Water under a slab or inside a wall cavity can run for months before it shows up as warped flooring, mold, or a foundation issue — and every month it shows up on your LADWP bill.

Our leak detection service uses acoustic listening equipment, pressure testing, and thermal imaging to locate the leak point precisely. Many Los Angeles homes built from the 1950s through the 1970s have copper lines running under the concrete slab; over time, hard water and soil movement cause pinhole leaks that are impossible to find by guesswork.

Once the leak is located, you get repair options with flat-rate prices: a direct spot repair through a small access opening, rerouting the line through the attic or walls to abandon the failing section, or epoxy lining the pipe from the inside. We'll explain the trade-offs so you can choose what fits the house and your budget.

What's included

Our leak detection & repair services.

Everything we handle under leak detection & repair across Los Angeles, Orange County, the Valley, and the Westside.

Slab leak detection

Acoustic and pressure testing to pinpoint leaks under concrete foundations.

Leaks behind walls & ceilings

Thermal imaging and moisture mapping to find the source without opening walls.

Underground water main leaks

Line tracing and listening along the service from the meter to the house.

Hot water line leaks

Warm floors and a water heater that never stops running traced to the source.

Spot leak repair

Targeted repair through one small access point once the leak is located.

Pipe reroutes

Abandon a failing under-slab line and reroute it overhead — no jackhammering.

Pool, spa & irrigation lines

Pressure tests on pool, spa, and irrigation supply lines.

Written findings

A clear summary of what we found that you can share with your insurance adjuster.

Get a flat-rate leak detection & repair quote

Tell us what's going on — we'll give you a written price before any work begins.

Don't wait on these

Signs you have a hidden water leak

Small plumbing problems get expensive fast. If you notice any of these, call before it turns into water damage or an emergency.

Seeing one or more of these signs?

A dispatcher can usually tell you over the phone whether it's urgent — no charge to ask.

Call 877-481-4075
  • Your water bill jumped with no change in usage
  • The water meter dial moves when every fixture is off
  • Warm or damp spots on tile, carpet, or hardwood floors
  • The sound of running water inside walls or under the floor
  • Musty odor, mold, or peeling paint near the baseboards
  • Cracks in walls or flooring that keep getting worse
  • Low water pressure throughout the house
  • The water heater runs constantly even when nobody is using hot water
How it works

From your call to a job done right.

No guesswork and no surprise invoices — here's exactly what happens when you book with us.

  1. 01

    Meter & pressure test

    We confirm there's a leak and isolate hot vs. cold and which zone it's in.

  2. 02

    Pinpoint the leak

    Acoustic and thermal equipment narrow the leak down to a small spot.

  3. 03

    Choose your repair

    Spot repair, reroute, or lining — flat-rate prices for each option.

  4. 04

    Repair & retest

    We fix the leak, pressure test the system, and confirm the meter is still.

Honest pricing

How much does leak detection & repair cost?

Every job is different, so we don't guess over the phone and then change the number on site. We look at the problem, then give you a written flat-rate price before any work starts. The price you approve is the price you pay — and it's the same at 3 a.m. on a Sunday as it is on a Tuesday afternoon.

What affects the price:

  • Where the leak is — under slab, in a wall, or underground in the yard
  • Whether you choose a spot repair, a reroute, or pipe lining
  • Pipe material and how many leaks the line has had
  • Flooring or finishes that need to be opened for access
Real customers

What homeowners say after the rescue.

Our reviews come from real emergencies — and how we handled them.

Emergency Sewer Backup
“We had a sewer backup on a Sunday night — our laundry room was completely flooded. I called Rooter Rescue at 9 PM and they had a tech at the door within 45 minutes. He cleared a major root intrusion in the main line and had everything flowing again by midnight. I couldn't believe the response time. They're the only plumber I'll ever call.”

Sarah M.

Los Angeles, CA

Slab Leak Detection
“My water bill had been climbing for months and I couldn't figure out why. Rooter Rescue used electronic detection equipment to find a slab leak under my kitchen floor without ripping up a single tile — found it in under an hour. The repair was clean, fast, and came in exactly at the estimate. These guys are total pros.”

Mike T.

Los Angeles, CA

Water Heater Replacement
“My water heater died on a Friday morning. I called three plumbers — two couldn't get to me until next week. Rooter Rescue had a new unit installed that same afternoon. The tech explained every option clearly, gave me a fair price without any pressure, and left the work area cleaner than he found it. Five stars isn't enough.”

Jennifer L.

Los Angeles, CA

Specials & coupons

Save on your next plumbing repair.

Mention a coupon when you call or show it to your technician — we'll apply it to your written quote.

Popular

$50 OFF

Any Plumbing Repair

Save on any plumbing repair — leaks, fixtures, valves, drains, and more.

RESCUE50Limited-time offer

Minimum $300 job. Excludes service call / diagnostic fee.

Popular

$100 OFF

Water Heater Replacement

Tank or tankless — same-day installation available on most models.

HOTWATER100Limited-time offer

Valid on full water heater replacement with installation.

Popular

$35 OFF

Drain Cleaning

Kitchen, bath, laundry, or main line — cleared with rooter or hydro-jet.

DRAIN35Limited-time offer

One drain per visit. Not valid with camera inspection special.

FAQ

Leak Detection & Repair questions, answered.

Straight answers to what homeowners ask us most about leak detection & repair.

Still have a question?

A live plumber answers every call, 24/7.

877-481-4075

A slab leak is a leak in a water line running under or inside your home's concrete foundation. In Los Angeles they're common in homes with copper supply lines poured into the slab. Hard water, soil movement, and abrasion against concrete eventually wear pinholes in the pipe.

Available right now — 24/7

Need leak detection & repair? Call now.

A live dispatcher answers every call, 24/7. Get a flat-rate price for leak detection & repair with no overtime fees for nights, weekends, or holidays.

Get in touch

Request a free leak detection & repair quote

Tell us what's going on and we'll get back to you within the hour during business hours — or call 877-481-4075 any time for immediate help.

Phone · 24/7877-481-4075Emailinfo@rooterrescueplumbing.com
Service AreaLos Angeles, Santa Monica, Beverly Hills, Burbank, Glendale, Pasadena, Long Beach, Torrance, Inglewood & all surrounding LA communities
HoursOpen 24 Hours / 7 Days

Active water emergency? Don't fill out a form — call immediately. Every minute of active flooding causes structural damage.

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