Sewer Line Replacement in Houston, TX

Sewer line replacement in Houston is often tied to aging cast iron pipes under slab foundations. Thousands of homes more than about 45 years old still have original cast iron lines. As those pipes corrode, crack, and leak, water can soften and erode soil under the center of the home, contributing to interior settlement and foundation damage.

Allied Foundation specializes in under-slab sewer line replacement for Greater Houston homes. We use camera inspection to locate leaks and damage, then tunnel under the foundation to replace deteriorated cast iron with modern PVC sized and pitched for positive drainage to the main.

Fixing the sewer problem is dirty, specialized work, and it is often the missing piece when foundation movement keeps returning after other repairs. A free estimate starts with understanding what your drains and slab are telling you.

A free video inspection sends a self-leveling camera through drain lines so technicians can see cracks, offsets, and deterioration in real time. That non-invasive look guides the scope of replacement so work focuses where the pipes actually fail.

We tunnel under the existing foundation, disconnect damaged cast iron, and install new PVC anchored to the slab with proper pitch to the main drain. Extensive sewer replacement work is commonly completed in a focused multi-day window depending on access and scope.