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Leaks under the foundation

Slab Leak Detection & Repair in Georgetown, TX

Warm tile, a meter that spins with every tap closed, or running water heard under the floor usually means a slab leak. On the Blackland clay east of I-35, moving foundations strain the pipes beneath. Alta Vista Plumbing finds the leak first, then handles slab leak repair in Georgetown, TX.

  • 4.7 on Google · 436 reviews
  • Georgetown plumbing since 1999
  • Family-owned
  • Homes and businesses
Plumber listening for a slab leak through a tile floor in a Georgetown TX home

What the work covers

Slab leak detection and repair, from first reading to closed floor

Two jobs in one: prove where the water is escaping, then choose the least destructive way to stop it.

Most slab homes here carry supply lines, and all of them carry drains, in or under the concrete. When a copper line wears through against gravel or concrete, water soaks the soil beneath the house. Hot-side leaks show up as warm floors; cold-side leaks can run for months before the bill gives them away.

Detection comes first because guessing is expensive. A jackhammer in the wrong room fixes nothing and adds a floor repair to the bill.

  • Meter and pressure tests that separate hot, cold and drain leaks
  • Acoustic and thermal pinpointing of the leak through the floor
  • Spot repair through a small opening in the slab directly over the leak
  • Reroutes that abandon the buried line and run new PEX through walls or attic
  • Tunnel repairs from outside the foundation when floors must stay intact
  • Retesting, backfill and compaction before the opening is closed
Small opening in a concrete slab exposing a repaired copper line in Georgetown TX
A pinpointed leak means a small opening, not a trench across the house.

Signs and causes

What are the signs of a slab leak in a Georgetown house?

Water under a slab rarely makes a puddle. It shows up as heat, sound, cracks and numbers.

Check for these

  • A warm or hot spot on tile or wood flooring, often near a bathroom or the kitchen
  • The meter or its leak indicator moving with every fixture off
  • The sound of running water when nothing is on
  • A water heater that fires more often than it used to
  • Damp carpet pad or a musty smell along an interior wall
  • New cracks in tile, baseboards pulling away or doors starting to stick

Ground matters as much as pipe. East of I-35, Blackland Prairie clay swells when wet and shrinks hard in a dry August. The slab rides that movement, and pipes cast into or laid beneath it take the stress.

West of the interstate, Edwards limestone moves less. There, leaked water can follow the rock and the gravel bed and appear a room away from the break, which is why a careful trace beats a guess.

Cracked hallway tile above a shifting slab on Blackland clay near Georgetown TX
Tile cracks and gaps at the baseboard can follow a moving slab.

How it is done

Slab leak repair in Georgetown, TX, step by step

From the first meter reading to a patched floor, in six stages.

  1. Confirm a leak exists

    With every fixture off, we read the meter and its leak indicator. Movement means water is escaping somewhere between the meter and the fixtures.

  2. Isolate each system

    Hot and cold sides are closed off and pressure-tested separately, and drains get checked when the signs point to odor or damp. That tells us which line to chase.

  3. Pinpoint the spot

    Acoustic listening picks up the hiss through concrete, and thermal imaging traces a hot-water leak as a warm bloom. The leak is then marked on the floor.

  4. Choose the repair together

    Spot repair, reroute or tunnel, each with its trade-offs and a quote, before anything is cut. Flooring, furniture and the age of the other buried pipes all weigh in.

  5. Make the repair

    A spot repair opens a small section of slab and splices in new pipe. A reroute runs new PEX overhead and caps the old line. A tunnel reaches the pipe from outside.

  6. Test, then close

    The line is pressure-tested again and the meter rechecked before the opening is backfilled, compacted and patched with concrete, ready for the flooring trade.

Thermal camera showing a hot-water slab leak under a Georgetown TX bathroom floor
A hot-side leak shows as a warm bloom through the tile.

Cost

What does slab leak detection cost, and what drives the repair price?

No two slab leaks cost the same. These are the variables, and the quote comes on site before work starts.

Reroute or tunnel: how the method changes the job

Slab leak repair methods compared
MethodFits whenMain cost drivers
Spot repairThe leak sits under replaceable tile or in a closetConcrete cutting, the flooring above, one splice
RerouteOther buried lines are the same age, or the floor is costly to replaceLength of the new run, attic and wall access, drywall patches
TunnelThe leak is mid-house under finished floorsTunnel length, soil type, hauling and backfill

Detection is priced by how hard the leak is to hear and isolate. A single hot-side leak under a bathroom is found faster than a faint cold-side leak in a large single-story home. Several leaks at once usually point toward a reroute.

Flooring, cabinets and trim above the spot are restoration costs, separate from the plumbing.

PEX reroute run through an attic to bypass a slab leak in Georgetown TX
A reroute leaves the old buried line in place and capped.

Rules and coverage

Texas 811, permits and insurance before the slab is opened

Three things to settle before anyone cuts or digs.

A tunnel or any outside excavation starts with Texas 811. State law requires the call at least two business days before digging, so buried gas, power and cable lines get marked.

A reroute is a partial repipe, and most cities in the area require permits for repipes, so we pull one when the job calls for it. The Texas State Board of Plumbing Examiners regulates plumbing statewide, and its public search names the Responsible Master Plumber behind any company.

On coverage, the Texas Department of Insurance says most home policies cover sudden, accidental water damage but usually not gradual leaks. Read your own policy and photograph the area before the floor is cut.

Why Alta Vista Plumbing

Why homeowners call Alta Vista Plumbing about a leak under the floor

One reviewer’s story says more than a list of promises.

One customer lost water over Super Bowl weekend to a hot-water leak under the slab near the master shower. When we came out, the leak was uncovered and repaired in about three hours, in a single visit. Pinpointing first is what makes a one-visit repair like that possible.

We have worked under Georgetown slabs, on limestone and on clay, since 1999. A 4.7 average from 436 Google reviews reflects that history, and customers often mention options explained, and a quote given, before any concrete is cut. Residential or commercial, call (512) 988-5119.

A slab leak repair, as one customer told it

4.7 average from 436 Google reviewsRead our Google reviews

Perry HansonGoogle review, about 4 years before Oct 2026

We were without water over super bowl weekend due to a hot water leak under the slab near the master bathroom shower. I called multiple plumbing co. Monday and only Alta Vista could help us that day. Lydia came out and in about three hours had the leak uncovered and repaired! Very happy with her work!! Thank You!

Reply from Alta Vista Plumbing

Anytime our fellow man in need, we always try our best to go out and give our 100%. I hope we can in the future, build a working relationship with all your plumbing needs. Thanks again for your rate Mr. Hanson. and again, i'm happy we were there to help.

Alan TaylorGoogle review, about 6 years before Oct 2026

Excellent plumbing company with knowledgeable and professional staff. They repaired my plumbing issue promptly and in a very timely manner from my initial contact. They showed up on time and were ready with materials and supplies to complete my repair issue. We will use them again without hesitation.

Hershini YoungGoogle review, about 8 years before Oct 2026

Jared was amazingly helpful and thorough. He managed to balance being a genuinely nice guy with his professional know-how which made having him do the work a pleasure. Steve Maldonado responded in a timely fashion and always kept me up to date with what was happening. His responsiveness and professionalism were what made me give the job to Altavista Services in the first place.

Service areas

Slab leak calls on clay and limestone around Georgetown

East-side Blackland clay drives most of these calls, but slab homes everywhere get older.

Hutto

Post-2000 production slabs on Blackland Prairie clay that heaves when wet and shrinks in August.

Pflugerville

1980s–2010s subdivisions on clay east of I-35, where slab movement stresses the pipes beneath.

Taylor

The county’s heaviest Blackland clay sits under its older homes, so foundations move more there.

Manor

ShadowGlen and Presidential Glen went up fast on Blackland clay, and the young slabs ride its swings.

Elgin

Historic and brand-new homes along US 290 share the same shrink-swell clay.

Weir

Blackland farm country on FM 971, with new slab subdivisions spreading toward the San Gabriel River.

Williamson County

Clay east of I-35 moves slabs; limestone west of it hides where leaked water travels.

Round Rock

Slab homes from the 1970s–80s now carry buried supply lines four decades old.

Brushy Creek

1980s–2000s slab homes on MUD water, where a meter check is the cheapest first test.

Cedar Park

Slab homes on Edwards limestone, where leaked water can surface a room away from the break.

Plumbing across Williamson County · All areas we serve

FAQ

Slab leak questions: clay, reroutes and insurance

What are the signs of a slab leak?

A warm patch on the floor, a meter that keeps moving with everything off, and the sound of water when nothing runs are the big three. A water heater that cycles more often points to the hot side. Fresh tile cracks or sticking doors can follow, especially on clay east of I-35. Check the meter first; it takes two minutes.

Why are slab leaks common in Central Texas clay?

Because the ground never sits still. Blackland Prairie clay, which covers much of the county east of I-35, swells after rain and shrinks in drought. The slab flexes with it, and lines cast into or under the concrete take the strain at joints and where they rub on gravel. Long dry summers followed by heavy rain are the hard years.

Reroute or tunnel: which repair is better?

It depends on the house. A reroute abandons the buried line and runs new PEX through attic and walls, so no concrete is broken and the old pipe stops mattering. A tunnel keeps the original layout and every floor intact but means digging under the foundation. When several buried lines share the same age, a reroute is usually the stronger long-term fix.

Does insurance cover slab leak repair?

Yes, in part, under many policies, but read yours. The Texas Department of Insurance says most home policies cover sudden, accidental water damage and usually exclude gradual leaks. Policies differ on paying to open the slab versus fixing the pipe itself, so ask your agent before work starts. TDI also says to report hidden water damage within days of finding it.

What does slab leak detection cost?

It depends on how hard the leak is to isolate. One hot-side leak under a bathroom is quicker to find than a faint cold-side leak in a large single-story home. A drain leak may need a camera and a test plug. Easy access to the meter and cleanouts helps. We quote on site after the first meter check.

Related services

  • Water Leak Detection — Hidden leaks in walls, slabs, yard lines and sprinkler zones traced and marked before anything is opened.
  • Whole-House Repiping — Replace polybutylene, galvanized or leak-prone copper with new PEX or copper, permitted, inspected and patched.
  • Main Water Line Repair & Replacement — Leaking or failing main water line found, repaired or replaced from the meter to the house, with trench or bore.

Further reading

Suspect water under the slab?

Every week a slab leak runs puts more water into the soil under the house. Call (512) 988-5119 and we will find it before anyone cuts concrete.

  • 4.7 on Google · 436 reviews
  • Georgetown plumbing since 1999
  • Family-owned
  • Homes and businesses

Alta Vista Plumbing Services, LLCGeorgetown, TX 78628(512) 988-5119

Call (512) 988-5119