How much does it cost to fix a slab leak in Austin, TX?
Slab leak repair in Austin, TX typically costs $1,500–$4,000 for a spot repair after detection, with leak detection itself running $150–$400. A full repipe to bypass the slab runs $4,000–$12,000. Detection matters more than repair price: a company that pinpoints the leak electronically cuts a small hole; one that guesses cuts several.
Likely causes
- Copper pipe corrosion — The classic slab leak — pinhole leaks in copper lines under the foundation, common in homes 20+ years old.
- Shifting soil / foundation movement — Movement stresses rigid pipe until a joint or line cracks.
- High water pressure — Sustained pressure above ~80 psi accelerates wear on every fitting in the house.
What you can check yourself
- Confirm it's real: watch the water meter with everything off — if the dial moves, water is going somewhere.
- Check the obvious first: running toilets and irrigation leaks mimic slab leaks and cost far less.
- Call your insurer early — slab leak *damage* is often covered even when the pipe repair isn't.
Typical cost
Typical in Austin, TX: detection $150–$400; spot repair $1,500–$4,000; repipe $4,000–$12,000. Get the detection report in writing before authorizing demolition.
When to call a pro
Warm spots on the floor, the sound of running water with everything off, or a sudden water-bill spike — book detection now; slab leaks erode the soil under your foundation.
Plumber pros in Austin, TX
- W.O. Harper Plumbing · 410 W 18th St, Austin, TX · +15124762657
- Excalibur Plumbing · 401 Congress Ave Ste 1540, Austin, TX · 5122775535
- Chase Llc · 515 Congress Ave # 5700, Austin, TX · 15128902933
- ROI Society · 106 E 6th St suite 900-107, Austin, TX · 7373733793
- Accurate Leak and Line - 6th, Austin · Littlefield Building, 106 E 6th St Ste 900, Austin, TX · 5128654088
- Roger's Plumbing Inc. · 815 Brazos St, Austin, TX · 5128424544
- ROBERTO RUIZ DBA HEADPLUMBER · PO BOX 9204, AUSTIN, TX · 5128365077
- Lantz Home Services · 1114 STE 200 West 5th Street, TX · +15127101032
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Data by Servik — verified local pros from official license records and public sources. Cost figures are typical ranges, not quotes; a pro's written estimate is the real number.