In Silver Spring, where the median home dates to the mid-1960s, hidden leaks often come from aging valves, galvanized or copper branch lines and old drain connections in finished basements. A plumber confirms the loss at the meter, then isolates each part of the system until the source turns up. Call the number on this page to be connected with a local plumber in Silver Spring.
Why leaks hide in Silver Spring homes
Silver Spring sits right on the District line, and much of its housing inside the Beltway was built in the decades after World War II; the median home here dates to 1964. Many of those houses have finished basements, so a weeping pipe can soak insulation and drywall for weeks before a stain shows. WSSC Water supplies both water and sewer, and it adds orthophosphate at its treatment plants to coat pipe interiors and slow corrosion, which helps, but it does not undo decades of wear on original valves and joints.
What to do right now
- Turn off every faucet, the dishwasher, the washer and any ice maker.
- Look at the meter. If the dial or leak indicator still moves, water is escaping somewhere.
- Close the main shutoff, usually in the basement where the line comes through the front wall, and see whether the meter stops. If it keeps turning, suspect the buried line between the meter and the house.
- Check toilets with a few drops of food coloring in each tank.
- Walk the basement with a flashlight, looking at ceiling joists, around the water heater and under laundry sinks.
- If water is coming up in the street or the sidewalk, call WSSC Water's emergency line at 301-206-4002.
Symptoms and what they usually mean
| Symptom | Likely cause |
|---|---|
| Meter moves with everything off | Fixture leak, hidden supply leak or a break in the service line |
| Brown ring on a basement ceiling | Leaking joint in the floor above, or a slow drain leak from a tub or shower |
| Musty smell behind a finished wall | Long-running drip feeding mold or wet insulation |
| Faint hiss when the house is quiet | Pressurized supply line leaking inside a wall or under the floor |
| Weaker flow upstairs than it used to be | Leak upstream, or corroded older piping restricting flow |
What drives the price
- How much finished space has to be checked before the source is found
- Tools needed, from simple isolation tests to thermal imaging and acoustic equipment
- Access in older houses with plaster walls, which take more care to open and patch
- The fix itself, which may be a single fitting or a section of corroded pipe
- Any WSSC Water permit for work such as service line repair
Leak Detection questions in Silver Spring
Are older homes here more likely to have hidden leaks?
How can I find out what my water service line is made of?
Who is responsible for a leak between the street and my house?
How do I tell a supply leak from groundwater seeping into the basement?
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