Broward · Miami-Dade · Jacksonville
Slab Leak Repair
Slab leak repair fixes water lines leaking inside or beneath the concrete slab your home sits on, which is how most Florida houses are built. The fix is either opening the slab at the leak or rerouting the line around it, and the right choice depends on your home, not a sales script. We locate the leak precisely first, then price both paths in writing.
What the job includes
- Precise leak location with acoustic and thermal equipment before concrete is touched
- Pressure testing to confirm which line is leaking, hot side or cold
- A written comparison of both paths: spot repair through the slab, or a reroute
- The repair itself: opening and patching the slab, or running the new line
- A check of the rest of the same line, since one failure may signal more
- A final pressure test and a walkthrough of exactly what was done
How you know it’s time
A warm spot on the floor
Tile or wood warmer than the rest usually means the hot water line under the slab is leaking there, quietly heating the concrete.
A faint hissing you can't locate
Pressurized water escaping under concrete makes a soft, constant hiss, easiest to hear at night.
Moisture at baseboards or floor cracks
Water under the slab eventually finds an edge: damp carpet along a wall, dark grout lines, or moisture wicking up baseboards.
The water heater runs more than it used to
A hot-side slab leak drains heated water continuously, so the heater cycles on even when nobody's using it.
A water bill that climbs month after month
Slab leaks rarely announce themselves. A steady, unexplained rise on your JEA bill is often the only early sign.
When to make the call
Schedule an evaluation when the signs start lining up: a warm floor spot plus a rising bill, or a hiss plus moisture where floor meets wall. One sign alone can have an innocent explanation, and we'll say when it does. A suspected slab leak is worth checking within days rather than months — not out of alarm, but because water under a foundation slowly erodes supporting soil, and the repair gets no cheaper by waiting. A quick visit settles it, with quotes the same day.
Local knowledge
Slab Leak Repair is a different job in Broward than in Jacksonville. We know both.
Broward & Miami-Dade
Slab leaks in Broward and Miami-Dade are usually 1960s–80s copper pinholing under the floor or a polybutylene fitting letting go. Once located, the honest choice is between a spot repair through the slab and a reroute overhead through the attic — in older homes with more leaks likely, the reroute is often the better money. We show you both prices before you decide.
Jacksonville & the First Coast
Slab leaks are a Florida issue by design: nearly every First Coast home is built on a concrete slab, and for decades builders ran soft copper water lines in or under it. Soil chemistry and years of hot water expanding the pipe against rough concrete wear pinholes into the copper — the hot line fails far more often than the cold. We see it from 1960s ranches in Arlington to 1980s homes off Baymeadows; newer CPVC and PEX construction in Nocatee shifts the problem to fittings rather than retiring it.
Questions
Slab Leak Repair. Ask us anything.
Last reviewed September 16, 2026
What are the signs of a slab leak in a Florida home?
The classic signs are a warm floor spot, a faint constant hissing, moisture at baseboards, a water heater running more than usual, and an unexplained climbing bill. Warm spots are the most telling — the hot line is leaking directly below. You rarely see standing water, since the slab and soil absorb it.
Should I repair under the slab or reroute the pipe?
Reroute when the pipe system is older or has leaked before; spot repair when the line is otherwise sound and the leak is reachable. A spot repair disturbs flooring but leaves aging pipe in place; a reroute costs more up front but retires the risky under-slab section entirely. We price both and tell you which we'd pick.
How much does slab leak repair cost in Florida?
The price depends on the path chosen and what sits above the leak: a spot repair varies with pipe depth and the flooring to lift and restore, while a reroute varies with distance and how accessible your walls and attic are. We give a free estimate with both options in writing before work begins.
Why do slab leaks happen so often in Florida?
Because most Florida homes are built slab-on-grade with water lines cast into or run beneath the concrete, and the soft copper used for decades develops pinholes as it ages. Hot lines fail most, from constant expansion against the rough slab. It's not a defect in your house — it's the predictable old age of a common building method.
How long does slab leak repair take?
Most slab leak repairs are finished in one to two days. A straightforward reroute can often be done in a day, with water restored the same evening; a spot repair takes longer end to end because the concrete patch needs to cure. We give a realistic timeline with your quote and keep the water off as briefly as the work allows.
Also in the family
Serving Broward County, Miami-Dade County, Jacksonville & the First Coast.