# Sliding Shower Door Leaking? Common Causes and Fixes | IDEAL Shower Doors

URL: https://idealshowerdoors.com/store/guide/sliding-shower-door-leaking
Description: Why sliding glass shower doors leak at the bottom, the overlap and the ends, and which system-specific sweeps and fin seals fix them.
Seller: IDEAL Shower Doors, Danvers, MA (https://idealshowerdoors.com/store/)

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Guide

# Sliding Shower Door Leaking? Common Causes and Fixes

By the [IDEAL install crew](https://idealshowerdoors.com/) · Frameless glass showers in Massachusetts and New Hampshire since 2014 · Updated 10-04-2026

Sliding doors leak in three places: under the door, where the door overlaps the fixed panel, and at the ends where they meet the wall.

## Under the door

Sliders use [bottom sweeps](https://idealshowerdoors.com/store/c/bottom) shaped for the system, like [CRL P995WS](https://idealshowerdoors.com/store/p/p995ws) (Cambridge and Crescent, 3/8") and [CRL P997WS](https://idealshowerdoors.com/store/p/p997ws) (Crescent, 1/2").

## Where the door overlaps the panel

A U-channel with a long fin closes the overlap, like [CRL PCCAM73](https://idealshowerdoors.com/store/p/pccam73) (Cambridge) or [CRL PCSER78](https://idealshowerdoors.com/store/p/pcser78) (Deluxe Serenity).

## At the wall

Corner fin seals like [CRL PC1090](https://idealshowerdoors.com/store/p/pc1090) seal where glass meets a panel at 90°.

**Note:** these seals are made for the systems named. On other sliding doors they may work if the [glass thickness](https://idealshowerdoors.com/store/measure) and profile match, but they are not designed for those systems, and all sales are final.

- [Not sure which seal you need? Use our Seal Finder Pick your door, point to where it leaks and we'll show only the seals that fit your glass. Takes about 30 seconds. Start the Seal Finder →](https://idealshowerdoors.com/store/finder)

## Products in this guide

- [CRL P995WS Bottom Wipe with Drip Rail, Cambridge & Crescent Sliders (3/8") 3/8" glass · 40" $12.95 View](https://idealshowerdoors.com/store/p/p995ws)
- [CRL P997WS Bottom Wipe with Drip Rail, Crescent Sliders (1/2") 1/2" glass · 40" $12.08 View](https://idealshowerdoors.com/store/p/p997ws)
- [CRL PCCAM73 Clear U-Channel with 1-3/4" Fin for 3/8" Glass 3/8" glass · 95" $33.58 View](https://idealshowerdoors.com/store/p/pccam73)
- [CRL PCSER78 Clear U-Channel with 1-1/4" Fin for 3/8" Glass 3/8" glass · 95" $33.58 View](https://idealshowerdoors.com/store/p/pcser78)
- [CRL PC1090 Clear 'U' with 90° Fin Seal for 3/8" Glass 3/8" glass · 95" $27.28 View](https://idealshowerdoors.com/store/p/pc1090)

## Common questions

**Why is my sliding shower door leaking?**

Usually a worn [bottom sweep](https://idealshowerdoors.com/store/c/bottom), a worn seal where the door overlaps the panel, or a gap at the wall.

**Do sliding shower doors use special seals?**

Often, yes. Many sliding systems use sweeps and fin seals shaped for that system, so compare the profile before ordering.

## More guides

[**Shower door leaking at the bottom** Water on the bathroom floor almost always comes from one of four places.](https://idealshowerdoors.com/store/guide/shower-door-leaking-at-bottom)[**Leaking on the hinge side or wall** The hinge side has a gap so the door can swing.](https://idealshowerdoors.com/store/guide/shower-door-leaking-hinge-side)[**Shower door won't stay closed** Frameless doors have no latch, so a door that drifts open leaks.](https://idealshowerdoors.com/store/guide/glass-shower-door-wont-stay-closed)[**Gap between door and wall** The gap is on purpose: a glass door needs room to swing without hitting the wall.](https://idealshowerdoors.com/store/guide/gap-between-shower-door-and-wall)