Bathtub & Shower
Leaking Shower Drain: What to Observe Before Repair
A leaking shower drain can involve seals, pans, tile, or plumbing below; observe location and damage before any repair decision.
What to know about Leaking Shower Drain: What to Observe Before Repair
A leaking shower drain is not automatically a drain-part repair. Water can come from the drain seal, shower pan, tile/grout, supply plumbing, door/curb, or ceiling path below. Document where water appears before anyone opens the drain.
Leak-location table
| Where water appears | Possible source | Safe next step |
|---|---|---|
| Ceiling below shower | Drain, pan, supply, or tile assembly. | Stop using shower and call plumber/qualified pro. |
| Around drain grate | Surface seal or drain assembly concern. | Photograph; do not loosen drain body. |
| Outside shower curb/door | Door sweep, caulk, curb, slope. | Dry-test exterior splash pattern. |
| Only during other fixtures | Drain/branch issue. | Document fixture pattern and call plumber. |
What not to do
Do not unscrew the drain, cut ceiling drywall, reseal over active leaks, or assume caulk fixes waterproofing failure.
Sources used
For the source record used for this guide, see the PlumbAdvisor source library.