If you notice soggy spots in the yard, low water pressure, or a musty smell, it may be a hidden leak underground. The photo shows the kind of careful work that can be needed for leak detection and sewer line repair when the problem is below the surface. Thorough Plumbing is a licensed plumber serving Allen and Plano homes, and we handle drain cleaning and sewer line repair with the right tools to find the real cause. If your home also has gas appliances, we can help with gas line repair to keep things safe. If you think something is going on under your yard or slab, schedule a visit so we can locate the issue and explain the next steps.