Worn cartridge
The valve does not close fully, so water reaches the head or spout.
Leaking Shower Valve
The shower head drips for hours after it is off, or stains appear on the wall behind the shower.
Short answer
A shower that drips from the head or spout after it is turned off has a worn cartridge or washer inside the valve. Water inside the wall is more serious: a leaking valve body or a failed connection. Drips are usually a repair; a leaking body usually means a new valve.
Likely causes
Old washers and seats
Two- and three-handle valves drip when washers and seats wear.
Cracked or corroded valve body
Water escapes inside the wall even with the shower off.
Loose connections
Fittings at the valve or shower arm leak into the wall cavity.
Many Miami bathrooms have no access panel behind the shower, so the first step may be identifying the valve from the front. If parts exist, a cartridge repair stops most drips. If the body leaks or is obsolete, replacing the valve is the fix, ideally from the back of the wall to save tile. If the wall behind the shower is a closet or hallway, a small access panel can be cut and later covered with a removable plate, which makes future repairs much easier. Without access, the plumber works through the trim opening, and a larger cover plate can hide a wider cut in the tile around the valve.
Safe first steps
- Note whether the drip is from the head, the tub spout or both
- Check the wall behind the shower, or an access panel, for dampness
- Look for stains, peeling paint or soft drywall on the other side of the shower wall
- Find the nearest shut-off; many showers rely on the main valve
- Take photos of the handle and trim to help identify the valve
When to call a plumber
Call when the drip continues, the handle is stiff or loose, there are signs of water behind the wall, or the shower temperature swings.
Services that fix this
Calling from one of the eight cities
- Replacing worn fixtures in Miami
- Replacing worn fixtures in Miami Beach
- Replacing worn fixtures in Key Biscayne
- Replacing worn fixtures in Hialeah
- Replacing worn fixtures in Opa-locka
- Replacing worn fixtures in Miami Gardens
- Replacing worn fixtures in North Miami Beach
- Replacing worn fixtures in Hallandale Beach
Leaking shower valve: questions
A worn cartridge or washer inside the valve.
A drip from the head is not urgent. Water inside the wall should be dealt with soon.
Often, with a new cartridge or washers, if parts are available.
Stains or damp drywall behind the shower when it has not been used suggest it.
Not for cartridge repairs. Replacement may, unless there is access from behind.
Scale or a worn cartridge. Lubricating or replacing the cartridge helps.
It lets a plumber reach the valve from behind without disturbing tile.
Yes. Moisture inside the wall in a humid climate can lead to mold.
Yes. Water inside the wall can stain drywall and floors on the other side.
Modern cartridges hold up well, but any valve can leak if scale or debris damages the seals.