Slab leak deTection & repair

Slab Leak Detection & Repair in San Antonio, TX

Protect Your Home from Hidden Plumbing Leaks

A slab leak is one of the most serious plumbing issues a homeowner can face. Because these leaks occur beneath your home’s concrete foundation, they can go unnoticed for weeks or even months — leading to water damage, mold growth, and costly structural repairs.

At CERTi-PRO Plumbing, our licensed technicians specialize in slab leak detection and repair services throughout San Antonio and the surrounding areas. Using advanced, non-invasive equipment, we locate the exact source of the leak and provide the most effective, long-lasting repair solution for your home.

What Is a Slab Leak?

A slab leak occurs when the water lines running beneath your home’s concrete foundation begin to leak. These pipes are often under constant pressure, and over time, small cracks, corrosion, or joint failures can lead to continuous water loss under the slab.

Common Causes of Slab Leaks

• Pipe corrosion from high mineral content or water chemistry

• Ground shifting or settling that stresses buried pipes

• Improper installation or weak fittings

• Electrolysis (when metal pipes interact with soil or rebar)

• Aging galvanized or copper pipes

Because the leak is hidden beneath concrete, the damage can spread before it’s detected — making early diagnosis critical to avoid major repairs later.

Signs You May Have a Slab Leak

Early detection is key to minimizing damage and repair costs. Call CERTi-PRO Plumbing if you notice:

• Warm or damp spots on floors

• Unexplained increases in your water bill

• Low water pressure in parts of your home

• The sound of running water when fixtures are off

• Cracks in walls or flooring

• Mold or mildew odors coming from the floor

If you suspect a slab leak, turn off your water and contact our team right away. Our advanced leak detection technology allows us to locate the leak without unnecessary digging or damage.

Our Slab Leak Detection Process

At CERTi-PRO Plumbing, we use acoustic listening devices, thermal imaging, and electronic leak detection to pinpoint the exact location of your leak. This allows us to recommend the most cost-effective repair option — whether that’s a direct repair, rerouting, or a full repipe of the affected line.

Non-Invasive, Accurate, and Fast

Unlike older methods that required breaking through large sections of concrete, our modern detection tools minimize disruption to your home. Once located, we’ll walk you through every available repair option and provide transparent pricing before we begin any work.

Expert Slab Leak Repair Solutions

Depending on the location and severity of the leak, our team may recommend:

• Spot repair: Opening a small section of the slab to repair the damaged pipe.

• Pipe rerouting: Running new lines through walls or ceilings to bypass the damaged area.

• Full line replacement: For older or severely corroded systems.

We always focus on providing long-term, durable solutions to prevent future leaks and protect your home’s foundation.

Why Choose CERTi-PRO Plumbing for Slab Leak Detection & Repair?

• Licensed, experienced plumbers with over 15 years in San Antonio homes

• Advanced detection tools for precise, non-invasive locating

• Honest recommendations — we never upsell unnecessary repairs

• Clear communication, upfront pricing, and fast service

• Local team that understands San Antonio’s unique soil and plumbing conditions

When it comes to protecting your foundation, trust the professionals who treat your home like their own — CERTi-PRO Plumbing.

See Also

• Leak Detection & Repair

• Water Line Flushing

• Hydrostatic & Static Testing