- San Antonio's Trusted Plumbing Experts
Slab Leak Repair in Castroville and San Antonio, TX
Protect Your Home with Precise Residential Gas Leak Detection
At Five Star Plumbing, we know how stressful it can be when something’s wrong beneath your home. If you’ve noticed your water bill creeping up, warm spots on your floor, or signs of hidden water damage, you might be dealing with a potential slab leak—and we’re here to help. Serving Castroville and San Antonio homeowners, our friendly, experienced team uses advanced tools to find and fix plumbing leaks quickly, with as little disruption to your home and routine as possible.
Call today to schedule service at our Castroville or San Antonio location.
What’s a Slab Leak—and Why Should You Care?
A slab leak happens when one of the water pipes beneath your home’s concrete slab foundation starts to leak. It’s not something you can see—but your home might be giving you little signs that something’s not right. These pipes, often made from copper pipes or other metals, can wear down over time due to corrosion, shifting soil, or just plain old age. And because everything happens under the concrete slab foundation, most people don’t even realize there’s a problem until the damage starts to show.
Here are a few red flags that might point to a slab leak:
- Your water bill suddenly spikes—without using more water
- You feel warm spots on your floor, especially over tile or wood (often caused by a leaking hot water line)
- Floors start to feel damp, or you notice mold or mildew
- Cracks appear in your drywall or concrete foundation
- You hear water running even when everything is turned off
If that sounds familiar, don’t ignore it. Slab leaks occur silently but can lead to serious problems. Catching a slab leak early can save you thousands in repairs—and protect the heart of your home from major damage.
Slab Leak Detection and Repair Process
We begin every job with a detailed inspection of your plumbing system. Our technicians use advanced slab leak detection methods including electronic listening devices, thermal imaging, and pressure testing to identify leaks with pinpoint accuracy.
Once the leak is located, we offer multiple repair options tailored to your needs:
- Spot Repair – We access the slab at the leak location, remove the affected pipe section, and replace it with new pipe.
- Pipe Rerouting – If multiple pipes are compromised or rerouting will prevent future leaks, we bypass the damaged area entirely with new lines above ground.
- Pipe Lining – We install a durable epoxy lining inside the existing pipes to seal cracks and leaks without major demolition.
- Re-Piping – For older homes or plumbing systems with multiple leaks, we may recommend installing entirely new copper pipes for long-term peace of mind.
All repairs follow Texas plumbing codes and aim to restore performance while protecting your home’s concrete slab foundation and indoor environment.
Slab Leak Repair Costs
The costs of slab leak repair depend on several factors including the repair method, pipe material, location of the leak, and whether rerouting or re-piping is needed. While some repairs may cost a few hundred dollars, extensive damage or complex access may raise costs. We provide transparent pricing, explain every repair method, and help homeowners choose the best option for their situation.
Why Homeowners in Castroville and San Antonio Choose Five Star Plumbing
- Family-owned, licensed, and locally trusted
- Castroville and San Antonio locations with fast service
- Advanced detection tools for minimal disruption
- Options for slab repair, pipe rerouting, pipe lining, and re-piping
- Warranty on most repairs and 100% satisfaction guarantee
Fair Pricing, Warranty & Financing Options
We offer upfront estimates with no hidden fees. Every repair is backed by:
- 1-Year Warranty on most plumbing repairs
- 90-Day Warranty on drain cleaning services
- 100% Satisfaction Guarantee
Ask about 6-month interest-free financing to help with larger slab repair costs. We make quality service affordable.
Schedule Slab Leak Repair in Castroville or San Antonio
Contact Five Star Plumbing today to schedule slab leak repair in Castroville or San Antonio. Whether you’re near Alsatian Golf Club or Medina Valley in Castroville, or located in neighborhoods like Alamo Heights or Oak Park in San Antonio, our licensed experts are here to protect your home’s foundation and plumbing system with responsive, reliable service.
Castroville Location
2780 FM 471 N, Castroville, TX 78009
Hours: 24/7 Emergency Service
San Antonio Location
1021 Patricia Dr, San Antonio, TX 78213
Hours: Mon–Fri, 8:00 AM – 5:00 PM
FAQ – Slab Leak Detection & Repair
How do I know if I have a slab leak?
Watch for spikes in your water bill, warm flooring, or damp spots. These could indicate a hidden slab leak beneath your concrete slab.
How are slab leaks detected?
We use professional slab leak detection tools like acoustic sensors, pressure gauges, and thermal imaging to locate water leaks without invasive damage.
What is the best repair method for slab leaks?
The right repair method depends on the leak’s location, severity, and your plumbing system. Options include spot repair, pipe rerouting, pipe lining, or full re-piping.
What does slab leak repair cost?
Slab leak repair costs vary based on method, materials, and complexity. Some fixes may cost a few hundred dollars; more complex jobs could be higher. We provide clear estimates upfront.
Are your repairs backed by warranty?
Yes. Most repairs include a 1-year warranty and our 100% satisfaction guarantee. We also offer financing on qualified repairs.