★★★★★ 5.0 on Google · 25 reviews · Licensed FL #CFC1434171 · Insured Jacksonville Beaches · St. Johns County · Palm Coast · (904) 754-9877
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Leak detection

Leak detection & repair

Water bill suddenly higher, a warm spot on the floor, or the sound of running water when everything is off? We find hidden leaks and fix them with minimal damage.

  • 5.0 ★ on Google
  • Licensed FL #CFC1434171
  • Same-day service
  • Owner on every job
CMA Plumbing checking for a leak under a sink

Find it fast, fix it right

High water bill? Soft spots on the floor? You might have a hidden leak. In Florida’s humid climate, even a small leak can lead to mold growth fast. Many homes here are built on concrete slabs, so a leak under the floor (a slab leak) can go unnoticed for weeks.

We use non-invasive pressure testing and listening tools to pinpoint leaks behind walls, under slabs and in your yard before opening anything, which keeps repairs smaller, cleaner and cheaper.

Signs of a hidden leak

High water bill

A jump in usage with no change in habits.

Meter moving with water off

A classic sign of a leak somewhere in the system.

Warm spots on the floor

Can indicate a hot water slab leak.

Musty smell, mold or stains

Moisture inside walls or ceilings, or damp spots that keep coming back.

Our approach

  1. Meter & pressure test

    We confirm there’s a leak and which side of the system it’s on.

  2. Pinpoint

    Listening and detection tools narrow down the location.

  3. Repair options

    Spot repair, reroute or repipe, explained with pricing.

  4. Restore

    We repair the leak and test the system.

Think you have a leak?

Check your meter with all water off, then give us a call.

Why homeowners choose CMA Plumbing

Licensed & insured

Florida license CFC1434171 and full insurance, for your protection and peace of mind.

The owner does the work

Marian handles your job from the first call to the cleanup. No subcontractors.

Clean, courteous plumbers

We wear shoe covers and leave your space spotless.

Warranty on parts & labor

We stand behind our work with a 100% satisfaction guarantee.

“When we called, and while still on the phone… Mario said he’s on his way. … He even called a day later to ensure no leaks.”

★★★★★Andrew W. · Yelp review
CMA Plumbing job photoCMA Plumbing job photoCMA Plumbing job photo

Leak Detection & Repair FAQ

How do I check for a leak myself?

Turn off every faucet and appliance, then watch your water meter. If the leak indicator or dial moves, water is going somewhere.

What is a slab leak?

A leak in a water line running under or through a concrete slab foundation. Warm floors, damp carpet and high bills are common signs.

Can you fix a slab leak without breaking the floor?

Sometimes the best fix is rerouting the line through the walls or attic instead of breaking concrete. We’ll explain the options.

Do you repair outdoor and irrigation line leaks?

We repair leaks on the home’s water supply, including outdoor lines to the house.

Book a visit

Tell us what’s going on. We’ll call you back fast.

For leaks, no hot water or backups, call. You’ll reach the owner, not a call center.

Call or text(904) 754-9877
Service areaJacksonville Beaches, St. Johns County & Palm Coast
Hours
Mon – Fri8:00 am – 8:00 pm
Saturday8:00 am – 5:00 pm
SundayEmergencies only
🚨 Water leaking right now? Shut off the main valve, then call now →

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Plumbing problem right now?

Talk to the owner directly. Most calls get same-day service.

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