Half the owner homes in the Town of Vienna were built in 1972 or earlier. Copper was the standard supply pipe in that stretch, and it can last a long time, but a half century of hard water and high pressure is about when pinholes start. They don’t announce themselves. A green crust on an elbow, a damp spot on the basement ceiling, a water bill that crept up, and then one morning a spray from a hole the size of a pin. When a Vienna caller says the leak is new, we usually find it’s been going a while.
The older third of town, houses from before 1960, is a different job. Those lines are often steel that was swapped for copper in pieces, so the pipe might change material three times between the meter and the kitchen. We follow the run rather than guess, and where a section is clearly done we say so, then price replacing that section and nothing around it. Plaster walls and tight finished basements mean small access holes, patched properly, not a gutted wall.
Newer Vienna is different again. A quarter of homes in town were built after 2000, and the leaks there come from plastic tubing, valves and fittings, a pressed connection that wasn’t seated, or a hose bib that froze because it was never drained. Those repairs are usually quick, and we’d rather tell you that than turn a ten minute fitting into a repipe.
Wolf Trap, on the county side, is almost all single-family houses, and about a third of them went up in the 1980s and 90s. That is the window for gray polybutylene supply pipe, so look under a sink or at the water heater for gray tubing with crimped rings. If you find it, call before it fails, not after, because it tends to let go at the fitting. One in ten homes inside the town is a townhouse, where a leak can show up on the other side of a shared wall, so shut your own main first.