The Problem
Homeowner had water in basement after rain. Two waterproofers quoted $12K and $18K for exterior excavation and membrane installation.
Detection Method
Thermal imaging of interior foundation walls found no moisture tracking from wall cracks. Acoustic correlation on underground water service line entering at foundation found a crack at the pipe coupling 1.5m from the foundation wall.
Results
Pipe coupling replaced: $850. Waterproofing avoided: $18K. Homeowner saved thousands by calling us first.