
Under-Foundation Plumbing & Slab Leak Repair
Many Houston homes sit on slab foundations, with drain and water lines running underneath. When one of those lines breaks, Gudiel’s Plumbing offers specialized services for detecting and fixing slab leaks.
- ★★★★★ 5.0 on Google (3 reviews)
- Open 7 days a week
- Honest pricing

Under-Foundation Plumbing: what we help with
- Slab leak detection and repair
- Broken drain lines under the house
- Pier-and-beam crawl space plumbing
- Repairs before or after foundation work
Signs of a slab leak
Watch for a water bill that jumps for no reason, the sound of running water when everything is off, warm or damp spots on the floor, cracks in floors or walls, or sewer smells inside the home.
Pier-and-beam homes too
Not every house is on a slab. Our own photos show new PVC drain lines and fittings installed under pier-and-beam homes, where we work from the crawl space.
The right access
Depending on where the break is, we reach the pipe by working from the crawl space, opening the floor, or tunneling under the slab. See our under-slab tunneling page.
Where we provide under-foundation plumbing
From our base in northwest Houston we cover about a 25-mile radius, including:
Houston trusts Gudiel’s Plumbing
Great Service! They came on time, replaced my toilet quickly, and left everything clean Highly recommended.
Fast response and great workmanship. My wather heater wasn't working properly-now it's running perfectly. I would use them again.
Excellent job came to my home and fixed my sewer problem really good guy also good price aswell
Under-Foundation Plumbing questions
How do I know if I have a slab leak?
Common signs are a sudden jump in your water bill, running-water sounds, warm or damp floor spots and new cracks. Call (346) 244-6040 to talk it through.
Do you have to break the floor?
Not always. Depending on the location, tunneling under the slab can avoid breaking up finished floors.
Do you work under pier-and-beam houses?
Yes. Our photos show drain lines we installed under pier-and-beam homes.
Other ways we can help
Plumbing
Leaks, pipe repairs, faucets, toilets, disposals and fixture installs.
Learn more →Water Heater Installation
No hot water or a leaking tank? We install and replace water heaters.
Learn more →Emergency Plumbing
Burst pipes, major leaks and backups, 7 days a week.
Learn more →Commercial Plumbing
Plumbing services tailored for businesses and commercial properties.
Learn more →Residential Plumbing
Home plumbing repairs, fixture installs and upgrades.
Learn more →Drain Unclogging
Clogged sinks, tubs, toilets and sewer lines cleared.
Learn more →Under-Slab Tunneling
Reach broken pipes under the slab by tunneling, not tearing up floors.
Learn more →Home Improvement
Beyond plumbing, we offer home improvement services to enhance your living space, from bathroom renovations to fixture upgrades.
Learn more →