Leak Detection in Greenbelt, MD

What happens when you call

Calling the number on this page connects you with an independent local plumber. Have a few details ready: whether you own or rent, what the water meter does with every fixture off, where you've noticed moisture or stains, and whether the problem appeared after a cold snap or a recent repair. At the house, the plumber confirms the leak with a meter test, then shuts off and checks sections of piping one at a time. Acoustic listening gear, a thermal camera or a pressure test can narrow it further. You'll see where the leak is and hear the repair options before any work starts.

What affects the cost

Most of the cost of leak detection is time and access. A leak found under a sink takes minutes; one inside a block wall, under a slab or above a finished ceiling can take far longer to locate and reach. The number of lines to test, whether the leak is on hot or cold piping, and whether the repair happens on the same visit all matter. If the repair needs a permit, that adds a step: in Greenbelt, projects that need a Prince George's County building permit also need a City of Greenbelt permit, while plumbing permits come from WSSC Water.

Leaks in Greenbelt homes

Greenbelt was built in 1937 as a planned New Deal cooperative community, and Old Greenbelt is now a National Historic Landmark district. The city's median home dates to 1976, so many houses and apartments have plumbing that ranges from the original 1930s work to 1970s additions and later patches. Older valves, worn fittings and pipe tucked into masonry walls are common leak points. Townhouses and apartments in places like Springhill Lake and Lakeside share walls, so a stain may start in the unit next door.

Hardness plays a part too. WSSC's tap water testing puts the average at about 140 mg/L for water from its Potomac plant and about 64 mg/L from its Patuxent plant, and which plant feeds a given address varies. Mineral scale wears valve seats and toilet fill valves, which then leak slowly.

Before the plumber arrives

• Find your main shutoff and close it if water is damaging anything
• Write down the meter reading and the time
• Clear access to the water heater, sinks and any access panels
• Photograph stains and wet areas
• Tell your landlord or co-op office if you don't own the unit