# How to Replace a Frameless Glass Shower Door Sweep | IDEAL Shower Doors URL: https://idealshowerdoors.com/store/guide/replace-frameless-shower-door-sweep Description: Frameless glass shower door sweep replacement, step by step: pull off the old sweep, measure the glass thickness, cut the new bottom sweep to width and pressure fit it on. About 10 minutes, no special tools. Seller: IDEAL Shower Doors, Danvers, MA (https://idealshowerdoors.com/store/) --- Guide # How to Replace a Frameless Glass Shower Door Sweep By the [IDEAL install crew](https://idealshowerdoors.com/) · Frameless glass showers in Massachusetts and New Hampshire since 2014 · Updated 10-15-2026 A new bottom sweep takes about ten minutes. You need a tape measure, a fine-tooth hacksaw or sharp snips, rubbing alcohol and a rag. ## Step by step 1. **Pull off the old sweep.** Open the door and pull the old sweep straight down off the bottom edge of the glass. If it is stuck, work it loose from one end. Scrape off any old adhesive or soap scum. 2. **Measure the glass thickness.** Lay a tape measure across the bare bottom edge: 1/4", 5/16", 3/8" or 1/2". Order the sweep made for that thickness. 3. **Clean the edge.** Wipe the bottom edge and the lower inch of the glass with rubbing alcohol so the new sweep grips cleanly. 4. **Measure and cut.** Measure the width of the door at the bottom. Cut the sweep to that length with a fine-tooth hacksaw or [sharp snips](https://idealshowerdoors.com/store/p/pts89). Cut a hair short if the door swings close to a wall or panel so the ends do not drag. 5. **Pressure fit it on.** With the drip rail facing the inside of the shower, line the sweep up with the glass and press it onto the bottom edge, working from one end to the other. 6. **Test.** Swing the door a few times. The fin should lightly touch the curb without binding. Run the shower and check the corners. ## Which sweep to buy For most frameless swing doors, a [bottom wipe](https://idealshowerdoors.com/store/c/bottom) with drip rail: [CRL P990WS](https://idealshowerdoors.com/store/p/p990ws) for 3/8" glass, [CRL P912WS](https://idealshowerdoors.com/store/p/p912ws) for 1/2", [CRL P956WS](https://idealshowerdoors.com/store/p/p956ws) for 5/16" and [CRL P914WS](https://idealshowerdoors.com/store/p/p914ws) for 1/4". Not sure of the thickness? [Here is how to measure it](https://idealshowerdoors.com/store/measure). ## Common mistakes - **Wrong thickness.** A sweep for thicker glass falls off; one for thinner glass will not go on. - **Drip rail on the outside.** The drip rail goes on the inside of the shower so water drips back in. - **Cutting short of the corners.** Leaving a gap at either end is the most common reason a new sweep still leaks. ## While you're down there With the old sweep off, you get a clear look at the bottom few inches of glass, which usually carry the heaviest water spots. Give the door a quick spray-and-buff with [IDEAL Conditioner](https://idealshowerdoors.com/store/p/ideal-conditioner) once the new sweep is on: it cleans and polishes in one pass and leaves a water-repellent, streak-free shine. If the spots won't wipe off, see [how to remove hard water spots](https://idealshowerdoors.com/store/guide/how-to-remove-hard-water-spots-from-shower-glass). - [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 P990WS Bottom Wipe with Drip Rail for 3/8" Glass 3/8" glass · 95" · 3 colors from $18.90 View](https://idealshowerdoors.com/store/p/p990ws) - [CRL P912WS Bottom Wipe with Drip Rail for 1/2" Glass 1/2" glass · 95" · 2 colors from $21.00 View](https://idealshowerdoors.com/store/p/p912ws) - [CRL P914WS Bottom Wipe with Drip Rail for 1/4" Glass 1/4" glass · 95" $19.95 View](https://idealshowerdoors.com/store/p/p914ws) - [CRL P956WS Bottom Wipe with Drip Rail for 5/16" Glass 5/16" glass · 95" $16.80 View](https://idealshowerdoors.com/store/p/p956ws) - [IDEAL Glass Care IDEAL Conditioner 2-Pack Two 8 oz bottles, about $15.99 a bottle: one for the shower, one for the mirrors or the kitchen. Each cleans and polishes in a single pass, lifting everyday grime and oils and leaving a brilliant, streak-free, water-repellent shine. Soapless, eco-safe, and great on far more than just glass. $31.98$39.98 View](https://idealshowerdoors.com/store/p/ideal-conditioner) ## Common questions **Which way does the drip rail face?** Into the shower. The drip rail catches water running down the inside of the glass and drops it back into the shower. **What do I cut a shower door sweep with?** A fine-tooth hacksaw gives the cleanest cut through the rigid part. [Sharp snips](https://idealshowerdoors.com/store/p/pts89) work on softer sweeps. **Do I need adhesive?** No. The sweep pressure fits onto the glass edge. Clean the edge with rubbing alcohol first. ## More guides [**Neo-angle shower seal replacement** A neo-angle shower has two angled panels that meet the door at 135°.](https://idealshowerdoors.com/store/guide/neo-angle-shower-door-seal-replacement)[**How to re-caulk a shower door** Old silicone turns yellow, grows mildew and starts to leak.](https://idealshowerdoors.com/store/guide/how-to-recaulk-glass-shower-door)[**Silicone instead of a seal?** Not on the door itself.](https://idealshowerdoors.com/store/guide/can-i-use-silicone-instead-of-a-shower-door-seal)[**Replace a framed shower door sweep** Framed shower doors don't use the clip-on sweeps that frameless glass does.](https://idealshowerdoors.com/store/guide/replace-framed-shower-door-sweep)