Annandale has one of the older housing stocks in Fairfax County, so original two-handle and early single-lever shower valves are common here, and many have outlived their parts. Some can be rebuilt; others are better replaced while the wall is open. Call the number on this page to be connected with a local plumber in Annandale.
Annandale's bathrooms and water
Annandale grew quickly after World War II, and its median home was built around 1968. Plenty of houses near Little River Turnpike, Lake Barcroft and Ravensworth still have the bathroom they were built with, or one updated in the 1980s. That means shower valves here include two- and three-handle compression valves with rubber washers, early single-lever mixers, and the occasional pressure-balancing model from a later remodel. Original galvanized or early copper supply lines may connect to them, and brass that has sat in place for fifty years can be brittle when a plumber tries to remove old stems.
Fairfax Water supplies Annandale from its Potomac and Occoquan plants, on a system that also takes Washington Aqueduct water. Finished water at the Potomac plant has averaged about 7.5 grains per gallon of hardness, moderate to hard. Fairfax Water uses chloramines most of the year and switches to free chlorine roughly April through June.
Repair, rebuild or replace
| Situation | Usual approach | Notes |
|---|---|---|
| Compression valve dripping | New washers and seats | Simple parts, but old stems can be seized |
| Single-lever with a stiff handle | New cartridge | If the brand still makes one |
| No anti-scald protection | Replace with a pressure-balancing valve | Holds temperature when other fixtures run |
| Body leaking or corroded | Valve replacement | Needs wall or tile access |
| Discontinued brand | Valve replacement | Avoids repeat searches for parts |
Signs worth a call
- A steady drip you can hear from the next room
- Hot and cold handles that both have to be cranked hard to shut off
- The shower turns scalding when the kitchen tap runs
- Rust-colored water or flakes at first flow from an older valve
- Soft drywall in a closet behind the tub
Seasonal and timing notes
Winter is hard on older Annandale houses with bathrooms on exterior walls; a supply line that freezes near the valve can split a fitting. In spring, the change to free chlorine can bring a stronger smell from the shower, which is normal. If you're planning other bathroom work, replacing an old valve at the same time saves opening the tile twice. Fairfax County Land Development Services issues plumbing permits through PLUS for repaired or relocated fixtures.
Shower Valve Repair questions in Annandale
What kind of valve is likely behind the handle in an older home here?
Should I upgrade to a pressure-balancing or thermostatic valve?
Can the pipes to a shower valve freeze in winter?
Does the spring change in disinfectant affect my shower?
More plumbing services in Annandale
Shower Valve Repair nearby
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