Bethany’s home, built on an original limestone foundation, faced a challenge that’s common in older properties — moisture sensitivity and the hidden impact of groundwater over time. When I meet with homeowners, I always make it clear what an interior drain tile system can and can’t do. It’s designed to keep water off your basement floor and finished materials, protecting your investment from the inside. What it won’t do, however, is stop water from reaching the foundation itself — that part depends on smart exterior management like gutters, grading, and drainage. During this project, we uncovered a rare but serious issue: the subsoil beneath the slab had washed out, leaving parts of the floor unsupported. While breaking through the old concrete, a section gave way — revealing just how compromised the ground had become. These situations are never ideal, but this is where experience matters. We immediately stabilized the area, issued a clear change order, and rebuilt the subgrade with compacted limestone and new reinforcement. Within days, the foundation was stronger, drier, and safer than it had been in decades — and we still delivered the project close to schedule. At Waterproofing Northeast, we don’t just install systems — we solve problems. Historic homes like Bethany’s require flexibility, communication, and a deep understanding of how old foundations behave. This project reminded us that even when things get unpredictable, a thoughtful approach and skilled crew can turn a setback into a structural success story.