Signs You Have a Slab Leak — and What to Do (Central Florida Guide)

Quick answer: A slab leak is a water leak in the pipes beneath your home’s concrete foundation. The most common signs are a sudden jump in your water bill, warm or damp spots on the floor, low water pressure, the sound of running water when everything is off, and new cracks in floors or walls. In Central Florida — where most homes sit on concrete slabs — catching a slab leak early can save you thousands in water and foundation damage.

What is a slab leak?

Your home’s water and drain lines often run through or under the concrete slab it sits on. When one of those pipes cracks, corrodes, or wears through, water escapes under the foundation. That is a slab leak — and because it is hidden, it can go unnoticed until the damage is serious.

7 warning signs of a slab leak

  • A spike in your water bill with no change in usage
  • Warm spots on the floor (if it is a hot-water line)
  • Damp, wet, or discolored areas on the floor or carpet
  • Low water pressure throughout the house
  • The sound of running water when all fixtures are off
  • Cracks in the floor, walls, or baseboards
  • A musty smell or mold from moisture under the slab

What causes slab leaks in Florida homes?

Common causes include corrosion of copper or galvanized pipes, poor initial installation, shifting soil, high water pressure, and Florida’s hard water wearing pipes from the inside. Older homes and those with copper lines are especially prone.

What should you do if you suspect a slab leak?

  • Do not ignore it. A small slab leak only gets worse — and more expensive.
  • Check your water meter: turn off all water, then watch the meter. If it keeps moving, you likely have a hidden leak.
  • Call a licensed plumber for leak detection. Pros use electronic and acoustic equipment to pinpoint the leak without tearing up your whole floor.

How BSP1 Plumbing finds and fixes slab leaks

We use professional electronic leak detection to locate the exact spot — no guesswork, no unnecessary demolition. Then we walk you through the repair options with an upfront price before any work begins. We serve Orlando, Kissimmee, St. Cloud, and the greater Orlando metro, and we are licensed (CFC1432849), insured, and bilingual.

Think you have a slab leak? Call (321) 732-5615 for same-day detection across Central Florida.

Frequently asked questions

How much does slab-leak detection cost?
In the Orlando area, professional leak detection typically starts around $300. We give you a firm price before we begin, and detection lets us fix only what is needed instead of guessing.

Can a slab leak get worse if I wait?
Yes. A slow slab leak can undermine your foundation, cause mold, and ruin flooring. Early detection is always cheaper than emergency repair.

Do I have to break up my whole floor to fix it?
Not usually. With accurate detection we can often do a targeted spot repair or reroute the line, avoiding major demolition.

Do you serve my area?
We cover Orlando, Kissimmee, St. Cloud, Lake Nona, Winter Park, Oviedo, Windermere, Lake Mary, Winter Garden, and surrounding Central Florida communities.

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