Reston's planned-community homes mostly date from the 1970s through the 1990s, so many shower valves here are on their original or second set of internal parts. A worn cartridge or seal causes most drips and temperature swings, and a plumber can usually replace it without opening tile. Call the number on this page to be connected with a local plumber in Reston.
Reston at a glance
Reston's median home was built around 1983, and the community grew village by village, from Lake Anne in the 1960s to later sections near South Lakes and Reston Town Center. That spread means one street may have a two-handle valve from the early days while the next has a single-lever pressure-balancing model. Fairfax Water supplies the area from the Potomac and the Occoquan, and its Potomac plant's finished water has averaged roughly 7.5 grains per gallon of hardness, enough to leave scale on cartridges over time.
What to do right now
- Stop runaway water. If the shower won't shut off, close the main shutoff valve where the line enters the house. Cluster homes may have a shutoff in a utility closet.
- Check for scalding. If the water surges hot, stop using that shower until a plumber looks at the pressure-balancing part.
- Look beyond the tub. Check the ceiling below and the wall behind the shower for damp spots or swelling.
- Note the brand. Names on the handle or trim plate help the plumber bring a matching cartridge.
- Leave a stuck handle alone. Forcing it can snap the stem or crack the valve body.
Symptoms and their usual causes
| Symptom | Likely cause |
|---|---|
| Drip after shutoff | Worn cartridge seals, washer or seat |
| Hot surge when a toilet flushes | Pressure-balancing spool slowed by scale |
| Handle stiff or gritty | Mineral buildup on the cartridge |
| Never quite hot enough | Limit stop set low, or a water heater issue |
| Water on the floor outside the shower | Leak at the valve body or a supply joint |
| Spout and head running together | Worn diverter |
Cost factors
- Part replacement versus cutting out and installing a new valve
- Whether your valve's maker still produces parts
- Access through a closet, panel or tile wall
- Scale that has to be worked loose
- Permits through Fairfax County Land Development Services when a valve is repaired or relocated rather than swapped like-for-like
- Patching drywall or matching older tile if the wall has to be opened
Many Reston cluster homes and townhouses share walls, so a plumber may ask which room sits behind the shower before deciding how to reach the valve. A closet or linen cabinet on the far side is the easiest path and keeps the tile intact.
Shower Valve Repair questions in Reston
What kind of valve is likely behind the handle in an older home here?
Can a plumber limit how hot the shower gets?
What should I do if the shower will not shut off?
Is the water here hard enough to wear out a shower valve?
More plumbing services in Reston
Shower Valve Repair nearby
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