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Isolation testing
Isolation testing is a precise and professional method used to detect hidden leaks in sewer lines, especially those beneath your home’s foundation. By isolating sections of the line and testing them with water, this process helps prevent serious issues like slab leaks, sewer overflows, and property damage—without any prep needed from the homeowner.
What Is Isolation Testing and Why Is It Important?
Isolation testing is a critical service designed to identify leaks in a home’s sewer system that aren’t visible to the naked eye—particularly those occurring under the slab. These hidden leaks can lead to serious structural damage, health risks, and expensive repairs if left undetected. Isolation testing uses advanced tools and techniques to pinpoint leaks early and accurately, allowing homeowners to take informed action before small issues become major problems.
This process is handled entirely by professionals and requires no preparation or disruption for the homeowner. It’s often the next step after a hydrostatic test indicates that a leak may be present, but the exact location is unknown.
How the Isolation Test Works
To begin, an inflatable test ball is inserted into the main sewer line directly beneath the perimeter beam of the home. Once inflated, the ball blocks off the system, allowing the sewer line to be filled with water. A specialized camera is then used to carefully inspect the isolated section for leaks.
The sewer system is divided into smaller sections, with each one being tested and inspected individually. This method ensures a thorough examination of every branch and fixture within the system. The test is repeated across the entire drainage network until all components have been evaluated.
What Happens If a Leak
Is Found?
If a leak is detected during the isolation test, a detailed diagram of the home's drain system is created, clearly identifying the location of any issues. From there, a repair estimate is prepared—completely free of obligation—so the homeowner can decide how they’d like to proceed.
By combining precision tools with expert knowledge, Houston Plumbing Inspections and Services provides homeowners with peace of mind, knowing that their plumbing system is secure, efficient, and protected from hidden damage beneath the surface.