A puddle outside a shower door can tempt you to caulk every gap, but some gaps are intentional for drainage and movement. Dry the enclosure, identify exactly where water crosses the threshold, and inspect the door sweep or drip rail for splits, stiffness, or poor contact.
QUICK STEPS
If you need the short version, try these steps first.
- Dry the door, threshold, and floor completely.
- Run the shower briefly while keeping spray away from the door, then gradually direct normal spray toward it.
- Watch the bottom sweep and side seals for the first point where water escapes.
Before you continue, check these safety points.
- Do not drill, grind, or modify tempered shower glass.
- Do not caulk over drainage openings without the enclosure manufacturer’s instructions.
- Stop using a door with loose glass, damaged hinges, or contact that could stress the panel.
Dry the threshold and reproduce the leak with a short test
Knowing whether water crosses at the hinge side, latch side, or center keeps you from sealing places that need to drain.
- Dry the door, threshold, and floor completely.
- Run the shower briefly while keeping spray away from the door, then gradually direct normal spray toward it.
- Watch the bottom sweep and side seals for the first point where water escapes.
- Inspect removable seals for cracks, hardening, or gaps without pulling on fixed glass.
- Replace only compatible sweep or seal profiles and retest before using caulk.
A worn sweep should match the glass thickness and gap
Frameless door sweeps come in different glass thicknesses and fin shapes. A seal that is too tight can bind the door; one that is too loose will not control water.
Do not block weep paths in framed shower tracks
Many framed enclosures use small drainage openings to return water to the shower. Caulking those openings can trap water in the track.
Loose glass or changing door alignment needs professional attention
If the glass panel shifts, hinges are loose, or the door suddenly contacts the threshold, stop forcing it. Tempered glass needs correct hardware support and alignment.
Before you call it done
- The leak location is identified on a dry enclosure.
- The bottom sweep is checked for splits, stiffness, and correct contact.
- Drain or weep openings are not sealed shut.
- Loose hinges, moving glass, or major misalignment are referred for professional service.