Most Union City homes were built after 2000, so a dripping or temperamental shower usually needs a new cartridge in a single-lever valve. A plumber can generally replace it through the trim. Call the number on this page to be connected with a local plumber in Union City.

What's usually wrong with Union City shower valves?
Census survey figures put Union City's median year built at 2002, with about 23% of homes from before 1980. Most showers have pressure-balancing single-lever valves, and the usual failure is a worn cartridge. That causes a drip after shutoff, temperature jumps when another fixture runs, or a handle that gets stiff.
The older homes around Union Street may have two-handle valves. For those, the fix is new stems, washers and seats if parts are still available.
Who handles water in Union City?
Union City maintains its own water distribution and sewer collection system and buys treated Chattahoochee River water from the City of Atlanta, delivered through master meters. The city's report lists chlorine disinfection.
Union City's utility FAQ says that if the meter turns with all fixtures off, the leak is on the customer's side, Public Works can't work on private property, and customers should call a plumber. That applies to a hidden shower valve leak too.
Does a valve replacement need a permit?
Union City Community Development's Building Permits Division handles plumbing permits through the city's online iWorQ portal. A cartridge swap is generally repair work. A full valve replacement is more likely to need one; ask the plumber.
On site, the plumber shuts off the water, removes the trim and checks the cartridge for wear, debris or a cracked spool. In homes built since 2000, the original brand's cartridge is usually still sold, so a single visit is the norm. Where a valve body needs replacing, the plumber will look for access from a closet or the room behind the shower before cutting into tile. If there's a planned remodel, it's worth timing the valve work to match. Older two-handle valves near Union Street may take a little longer because parts need to be matched by model.
A local note
If you suspect a leak inside the wall, the meter test the city describes is a useful check: turn off every fixture and watch the meter. Movement means water is going somewhere, and a shower valve or its connections is one possible place.
Shower Valve Repair questions in Union City
Our house is fairly new. Can the shower valve already be failing?
How can I tell if the valve is leaking inside the wall?
Do I need a permit to replace a shower valve here?
The handle is stiff or spins freely. What does that mean?
More plumbing services in Union City
Shower Valve Repair nearby
Helpful guides
Sources
Last updated: