Find the direction of the water first
Watch one shower with the door closed and note where the water lands. A leak at the bottom, hinge side, strike side, or wall joint points to different causes. Water that appears outside the door may have traveled along the curb or floor rather than passing through the glass opening.
Common causes of shower door leaks
Worn sweeps and seals are common, especially when the door has been in use for years. A dropped door can leave a larger gap at one corner. Poor curb slope, loose hinges, missing end caps, and a shower head pointed toward the entry can also overwhelm a well-maintained seal.
- Worn bottom sweep or magnetic jamb seal
- Door out of alignment or hinge screws loose
- Curb or tub deck not sloped toward the shower
- Water aimed directly at the opening
- Missing or damaged silicone at a fixed panel
Safe maintenance steps
Clean mineral buildup from the sweep and track with a non-abrasive method, check whether the door closes evenly, and look for torn seals or movement at the hinges. Do not add random caulk over a moving joint or block a drainage path; that can hide the problem and make future repair harder.
When to call a glass professional
Call for help when the glass is cracked, the door is sagging, the hinge area is loose, the leak continues after a seal replacement, or water may be reaching the wall or subfloor. A professional can determine whether a part replacement, adjustment, reseal, or new panel is the right fix.
Repair or replacement?
If the glass and opening are sound, repair is often the first option. If the door has repeated failures, the system is obsolete, or the layout cannot control water, a replacement or redesigned enclosure may provide better long-term value.
