Hydrostatic Testing
Red Oak, TX

Licensed sewer and drain testing for home sales, slab leak diagnosis, and foundation repair verification — performed by a Texas Master Plumber, with a written result you can hand to your inspector, buyer, or foundation company.

Call (469) 505-8362

Hydrostatic Testing

A controlled water test that tells you definitively whether the drain system under your slab holds — or leaks.

Includes

  • Pre-sale & inspection testing
  • Slab leak confirmation
  • Post-foundation-repair testing
  • Isolation testing on failures
  • Sewer camera inspection
  • Written results & repair options

The Definitive Answer

Does Your Drain System
Hold Water?

A hydrostatic test is the industry-standard way to verify the sewer and drain lines under a slab foundation. We plug the main line at the cleanout, fill the system with water to slab level, and watch the level. If it holds, your drains are sound. If it drops, water is escaping under your foundation — and in North Texas expansive clay, that moisture is exactly what swells the soil and moves foundations.

When a test fails, we don't just hand you bad news. We isolate the leaking section with camera inspection and isolation testing, then lay out your repair options — targeted spot repair versus re-route — with honest pricing before any work begins. If the concern started as a suspected slab leak on the water side, our leak detection service covers pressurized lines the same way.

Home Sales

Inspector flagged it? We test inside your option period.

Foundation Repair

Before-and-after testing when your foundation is leveled.

Call (469) 505-8362

Real Estate Transactions

The Test That Saves
Ellis County Home Sales

In Red Oak, Waxahachie, and across Ellis County, home inspectors routinely recommend hydrostatic testing on slab-foundation homes — especially pre-1980s houses with original cast iron drain lines. Buyers request the test during the option period; sellers order it up front to take the question off the table. Either way, Texas requires a licensed plumber to perform it.

X-Act Plumbing is local to Red Oak, which means we can usually schedule inside a tight option window. You get a straight answer, a written result, and — if the system fails — an isolation diagnosis and repair quote fast enough to renegotiate before your deadline. Realtors and inspectors: reach out about scheduling for your clients.

Performed by a Texas Master Plumber — RMP-44569
Schedule a Test

When to Test

The situations where a hydrostatic test is the right call.

Common Triggers

  • Buying or selling a slab-foundation home
  • Inspector recommended sewer testing
  • Foundation repair planned or completed
  • Unexplained foundation movement
  • Recurring drain backups
  • Pre-1980s cast iron drain lines

Common Questions

Hydrostatic Testing FAQ

What is a hydrostatic test?

A hydrostatic test checks the sewer and drain system under your home for leaks. We plug the main sewer line at the cleanout, fill the drain system with water to slab level, and watch the water level. If it holds, the system is sound. If it drops, there is a leak under the slab — and we can isolate and locate it.

Do I need one when buying or selling a home in Texas?

It is one of the most common inspection follow-ups in North Texas real estate. Home inspectors frequently recommend a hydrostatic test on slab-foundation homes — especially older ones with cast iron drains — and buyers often request one during the option period. A licensed plumber must perform it.

Can a hydrostatic test damage my pipes?

A properly performed test fills the system to slab level only — the same pressure your drains see in normal use. On older cast iron systems we inspect first and test carefully. Testing performed by an unlicensed handyman is where horror stories come from; X-Act tests are performed by a licensed plumber.

What happens if my home fails the test?

A failed test tells you the drain system is leaking — the next step is isolating which section. We use camera inspection and isolation testing to pinpoint the leak, then give you honest repair options with clear pricing, from targeted spot repair to a re-route.

Buying, Selling, or Leveling?

Get the Answer
In Writing.

Licensed hydrostatic testing throughout Red Oak, Waxahachie, and Ellis County — scheduled to fit your option period.

(469) 505-8362 Or submit a request →