Shower Leak Detection & Repair in Cibolo, TX
Stains on the wall behind the shower, loose tile or a musty bathroom? Get the leak found in the pan, valve, drain or grout before it spreads.
Call (210) 750-1568- Open 24/7 · Cibolo, TX 78108
- Non-invasive detection
- Repair options explained
What is shower leak detection?
Shower leak detection finds where water is escaping from a shower, either through the pan under the tile, the drain, the valve behind the wall, the supply pipes or cracked grout and caulk. Technicians use flood tests, moisture meters and thermal cameras so only the failed part is opened.
Shower leaks are sneaky. The water often shows up somewhere else: a stain on the ceiling below, a swollen baseboard in the next room, or damp carpet in a closet. In Cibolo's slab homes, a leaking pan can soak into the slab edge and wick into nearby walls for months before anyone sees it.
Why showers leak in Cibolo homes
Most Cibolo homes were built from the 2000s on, and many still have their original tiled showers. Mortar-bed pans from that era rely on a vinyl liner that can crack or pull loose at the drain after 15 to 20 years. Hard water also leaves mineral buildup that wears valve cartridges faster and dries out grout.
- Original pan liners reaching the end of their life
- Clay soil movement that cracks tile and grout lines in slab homes
- Hard water wearing cartridges and showerheads
- Caulk at the curb and corners that was never renewed
Signs your shower is leaking
- Stains or peeling paint on the wall behind or beside the shower
- Loose, hollow-sounding or cracked tiles
- Grout that stays dark long after a shower
- Swollen baseboards or door trim near the bathroom
- Musty smell or mold at the base of the wall
- Water stains on the ceiling below an upstairs shower
- Dripping showerhead or a valve that won't fully shut off
If the meter moves when no one is showering, the leak may be in the supply pipes. If it only appears after a shower, the pan, drain or grout is the likely source.
Where showers leak
| Area | Typical problem | How it shows up |
|---|---|---|
| Shower pan | Torn liner or failed membrane under the tile | Damp walls or floors next to the shower after use |
| Drain | Loose drain body or failed gasket | Ceiling stain below, damp subfloor |
| Valve and cartridge | Worn cartridge or a cracked valve body | Constant drip, wet wall behind the controls |
| Supply lines | Pinhole or failed fitting inside the wall | Meter moves even when the shower is off |
| Grout and caulk | Cracks at corners, the curb and the floor | Dark grout, loose tile, water at the door |
| Shower door | Bad sweep or misaligned door | Water on the bathroom floor only |
How shower leak detection works
- Check moisture. A moisture meter maps damp areas around the shower walls and floor.
- Thermal scan. A thermal camera shows cool, wet zones and warm hot-water lines behind tile.
- Test the supply side. With the valve off, the meter and a pressure gauge show whether the pipes are leaking.
- Flood test the pan. The drain is plugged and the pan is filled to see if water escapes the membrane.
- Test the drain and grout. Water is run only at the drain, then only on the walls, to separate the sources.
- Explain the fix. You get the source and the repair options before any tile is removed.
How much does shower leak repair cost in Cibolo?
Shower leak detection in Cibolo usually costs about $200 to $500. Regrouting and resealing often runs $300 to $800, and a valve or cartridge repair $200 to $600. Replacing a failed shower pan is the largest job, commonly $1,500 to $4,000, because the tile floor has to come up.
| Shower job | Typical range |
|---|---|
| Shower leak detection | $200 – $500 |
| Valve cartridge replacement | $200 – $400 |
| Valve body replacement (wall opened) | $400 – $900 |
| Regrout and reseal shower | $300 – $800 |
| Drain repair | $250 – $700 |
| Shower pan replacement | $1,500 – $4,000 |
Ranges are approximate 2026 estimates for the Cibolo and northeast San Antonio area, gathered from typical local pricing. They are not quotes. The provider gives you a price before any work starts.
Repair or replace?
Grout, caulk and valve cartridges are repairs. If a flood test shows the pan liner has failed, patching rarely lasts. The pan and the floor tile need replacing. If the tile is older and the walls show water damage too, a full shower rebuild may cost only a little more than a pan and floor alone.
DIY safety
You can recaulk the corners and the door line, and check the showerhead and diverter for drips. Don't keep using a shower that leaks into a wall. The damage keeps spreading where you can't see it. If you smell mold, keep the bathroom ventilated and get the area checked. For leaks you can't trace to the bathroom, see leak detection in Cibolo, TX or our hidden water leak guide.
Frequently asked questions
How do I know if my shower pan is leaking?
Signs include damp or stained walls next to the shower that appear after use, loose floor tile, and a musty smell. A flood test, where the drain is plugged and the pan is filled, confirms it.
Can a leaking shower cause a slab leak?
A shower leak is different from a slab leak, but water from a failed pan can soak the slab edge and nearby walls. A slab leak comes from a pressurized pipe under the floor and shows even when no one is showering.
Will they have to remove all the tile?
Not to find the leak. Valve, grout and drain problems are often fixed with little or no tile removal. A failed pan usually means the floor tile must come up.
Is shower leak damage covered by insurance?
Many policies exclude slow, repeated leaks but may cover sudden damage. Ask your insurer and keep the detection report and photos.
How long does a shower pan replacement take?
Often three to five days, including time for the mortar bed and tile to set before the shower can be used.
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