Sydney Underground was founded to provide a smarter, cleaner, and faster approach to leak detection across Sydney’s residential, commercial, and civil sectors. Built on trust and technical excellence, we’ve grown into one of Sydney’s most reliable specialists for water, gas and building leaks.
Our technicians use industry-leading tools such as acoustic sensors, tracer gas systems, and thermal imaging to pinpoint issues accurately without unnecessary drilling or excavation. Every project—whether for a homeowner, builder, or plumber—is handled with precision, transparency, and a commitment to long-term solutions.
