Leak Detection in Falls Church, VA

Joints and valves go before straight pipe. On older copper, pinhole leaks appear where water chemistry and age thin the wall; on galvanised lines, corrosion narrows the pipe and weeps at threaded joints. A green stain on copper or rust at a joint is the early warning — long before a drip appears.

Yes — roots enter through tiny joint gaps in older clay or cast-iron laterals, then grow into a net that catches paper and grease. The early signs are a gurgling toilet, slow drains throughout the house (not just one), and a sewage smell in the yard after rain. Finding the exact section matters: it decides whether one spot repair is enough.

That pattern points outside the plumbing: groundwater pushing through the foundation, a leaking areaway drain, or a supply line in the yard that only shows when the soil is saturated. We moisture-map the wall and test the plumbing separately, so you do not pay to fix pipes for a drainage problem — or the other way round.

It can be — a break on the main line loses pressure everywhere. But corrosion narrowing old pipes does the same thing gradually. The meter test separates them in minutes: if the dial moves with everything off, water is escaping; if not, the pipes themselves are the restriction.