Repiping in Gaithersburg, MD

Gaithersburg homes and water

Gaithersburg went from a farm town to a large suburb along I-270, with an Old Town around the MARC station and planned communities such as Kentlands. That growth left a younger housing stock than the inner suburbs, with a median build year of 1989. In homes from that era, a leak is more often a single bad joint or a line nicked during a remodel than a sign the whole system has failed.

WSSC Water runs the mains and sewers across the city. Plumbing permits and inspections come from WSSC Permit Services, while the City of Gaithersburg's Planning and Code Administration issues building permits. WSSC's homeowner permit path leaves out some work entirely, including below-grade piping deeper than 4 feet and connections to WSSC service connections, so tie-ins to the incoming line are a job for a plumber registered with WSSC Water.

Three ways to handle failing pipe

Signs it may be time

• A second or third leak within a couple of years, each in a different spot
• Repair couplings and patches stacking up on exposed lines
• Pressure that has dropped at every fixture, not one clogged aerator
• Gray threaded pipe at the water heater in an older Old Town house
• Stains on a ceiling below a bathroom that come back after a repair

Timing notes

Repipes are easiest to schedule outside an emergency. If leaks are slow and contained, you have time to get the job planned around the household: most crews work room by room so water is off only for part of each day. Winter adds urgency for lines in exterior walls or over unheated spaces, since cold nights can split a weakened pipe. If a kitchen or bathroom remodel is already on the calendar, that is the most economical moment to replace supply lines, because the walls will be open anyway.