In Silver Spring, a plumbing inspection is a plumber's review of the service line where it enters the house, the supply and drain piping, fixtures, valves, water heater and gas connections. With the typical home here dating to about 1964, it's often the clearest way to learn what decades of use have left behind. Call the number on this page to be connected with a local plumber in Silver Spring.
Silver Spring sits right on the District line, with a dense downtown ringed by older residential streets inside the Capital Beltway. A median build year of about 1964 means many houses here still have some original plumbing, along with patches and updates from several owners. WSSC Water supplies water and sewer, and it banned lead as a service line material in 1954, so homes built before then deserve a closer look at the pipe coming through the foundation wall.
What to do now
- Look up the address on WSSC Water's What's Your Pipe Type map, which shows known or reported service line material.
- Ask the seller for the water heater's age and any records of drain or sewer work.
- Find the main shutoff, usually in the basement where the line comes in, and make sure it can be reached.
- Note slow drains, rust-colored water at first draw, or water marks on basement walls.
- Book early in your contingency period so there's time for a camera run or quotes if needed.
Symptoms and likely causes
| Symptom | Likely cause |
|---|---|
| Weak flow upstairs, worse when two fixtures run | Galvanized supply pipe narrowed by internal rust |
| Brown water after the tap sits | Corroding steel pipe or fittings |
| Basement floor drain backs up during heavy storms | Partial blockage or damage in the building sewer |
| Main shutoff won't turn fully | Old gate valve seized in place |
| Rumbling or popping water heater | Sediment layer in the bottom of the tank |
WSSC disinfects with free chlorine rather than chloramine and adds orthophosphate at both treatment plants to coat the inside of pipes, including household piping. That helps, but it doesn't make an aging valve, a corroded steel nipple or a tired water heater new again.
Cost factors
- House size and number of baths
- Finished basements that limit access to piping
- Adding a sewer camera run, which is common on houses this age
- Gas appliance connections to check
- Written notes or photos for negotiations
Repairs that come out of the visit are permitted through WSSC Water, whose inspectors working from the Lyttonsville depot cover central and southern Montgomery County. Gas water heater and furnace replacements must be done by a plumber or gasfitter registered with WSSC. If you ever smell gas, leave the house first, then call 911 and Washington Gas at 844-WASHGAS (927-4427), selecting option 1.
Plumbing Inspection questions in Silver Spring
How can I find out what the water service line is made of?
What deserves extra attention in an older house?
Which part of the water service line is the owner's responsibility?
Should a sewer camera run be added to the inspection?
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