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Frameless Shower Door Leaks- What Causes Them and How to Repair Them

Frameless Shower Door Leaks: What Causes Them and How to Repair Them

Regarding style and size, a frameless shower door provides more options than framed enclosures, which appear dated and constrained. Frameless shower doors make a bathroom seem more prominent and create a more open atmosphere in the room. Because of their advantages, these types of doors have become the new industry standard.

Mishaps occur from a poor installation or because something has broken down over time, and water may leak from the shower door. If certain precautions are not taken at the start of the repair process, repairing a leaking shower can be a difficult and costly task.

This article will discuss why shower doors leak and how to fix them. Continue reading!

The Reasons for a Leaking Shower Door

Imagine exiting your steamy and relaxing shower only to discover a massive puddle of water on your bathroom floor. You may feel frustrated or stressed, but don't worry; shower doors and shower enclosures can leak water for various reasons. This can happen with both new and old showers.

Shower door water leaks are typically caused by the following:

1. Improper Installation

Not only do old shower doors leak, but your new shower door may leak as well. If your shower door is misaligned or incorrectly installed, you may see leakage on your bathroom floor or wall.

Improper installation may be one of the causes of a leaky shower. Custom frameless shower doors usually have seals installed on the vertical edge that meets the stationary pane to keep water from exiting through the crack while still allowing the door to swing.

2. Poor Quality/No Caulking

Prevent puddles of water from exiting the shower. The edges of both framed and frameless shower doors are sealed with silicone caulk. A shower door seal, like caulk, prevents shower leaks. Worn-out, poor-quality, or missing caulk can let moisture escape your frameless shower glass door.

Caulk is a flexible material to seal air leaks through cracks, gaps, or joints. Experts suggest you choose pure silicone caulk for a more stable job that won't come in contact with paint afterward.

3. Incorrectly Inclined Shower Curb

A shower curb is a threshold you must cross when entering and exiting the shower. It is usually only a couple of inches tall, but keeping water inside the shower is crucial. Water will leak through the shower door if the shower curb is incorrectly inclined. Shower curbs act as a barrier and have a 5-degree slant so that water that falls on top of the curb runs into the shower.

The curb height is measured vertically from the floor to the top of the curb on the outside of the shower.

4. Broken or Improperly Installed Shower Door Sweep.

Another common shower leakage is the incorrectly installed shower door sweep. Frameless shower doors generally have sweeps attached to the bottom of the door, which keeps water from exiting the shower underneath the door.

Solutions to Repair Leaking Frameless Shower Doors

Nothing is more aggravating than a misaligned glass shower door. Water leakage can occur when shower doors are not correctly adjusted. Almost always, the solution is to change the shower door hinges, which homeowners can do themselves. You only need a few wood shims and a Phillips screwdriver.

Leaks from shower enclosures can be costly causing damage if not repaired quickly. Below are a few solutions for fixing leakage from a frameless shower door:

1. Shower Wall Leakage

Water leakage along the shower wall is rather sneaky and unnoticeable. To avoid water stains on your wall or water spots, apply caulk evenly to the required areas to prevent water from escaping. If there is caulk already, scrape away the bad silicone and reapply the new caulk. Remove excess chalk and clean the area when dry.

2. Under Shower Door Leakage

Bottom leaky shower doors of your frameless or framed showers are easily repaired by silicone caulking. For about $10, you can easily purchase transparent caulk sealant. In framed shower doors, leaks are always at the bottom of the shower door. Clogged drain holes most likely cause these leaks.

Pro Tip: Apply the shower door edges with silicone caulk. Remove excess caulk by scraping as much residue as possible with a razor blade. Remember, insufficient sealing can cause water leakage, so always apply caution.

3. Water Leakage near Glass Joint

If you notice water leaking where the glass panels meet, you must install a door seal between the glass panels. This is an easy fix.

Shower seals are used for horizontal and vertical application to frameless and framed shower door glasses. Shower seals are used to waterproof gaps between glass shower panels, bath rims, tiled surfaces, and shower trays.


Shower door leaks can be challenging to detect. Keep in mind that the leak could be coming from several places. Begin by turning on the water in the shower and watching where the water appears from outside. Because water always flows downward, it could come from higher up than you think.

If you are installing your shower door, ensure you correctly position your shower door glass during installation; of course, you need to ensure there are no gaps. And that your shower curb is precisely inclined.

As the famous Ghostbusters saying goes, "Who you gonna call? Ghostbusters!"

Since "Ghostbusters" may not be able to fix your damaged shower door, we highly suggest you contact Shower Door Experts to assist you in repairing your leaking frameless shower door.

Take care of your leaky shower and enjoy your relaxing shower experience without the stress of water puddles and water damage on your floor tiles.

Contact GCS Glass & Mirror 

Contact GCS Glass today for a free quote or to schedule an appointment for a shower door replacement and to begin designing your custom shower door and enclosure. We look forward to hearing from you and assisting you in designing a custom frameless shower door and enclosure that will instantly transform your outdated bathroom into the type of beautiful, modern bathroom you've always desired.

If you enjoyed this article, check out these other articles about Glass Showers:
Common DIY Fixes for Frameless Shower Doors & When to Call the Pros

What People Are Saying About Us

I did everything from my iPhone! Easy peasy!

The team at GCS was so easy to do business with. I did everything from my iPhone. I received quotes for my project with options to choose from. We scheduled appointments by text. Measurements were precise and the glass install looks great. When it was all done I made payments through an app on my phone. Easy peasy.

– Philip Capizzi

Very Accommodating!

Just had our new shower glass and frame installed and we are very pleased. Brendan and Tyler did a great job and we really appreciated them working around the other flooring project we had going on at same time. Very accommodating. The glass and framework looks great. I'm looking forward to using the shower tomorrow with the new look. VERY pleased. The company is very responsive, quick to come out and measure, and got the job done. Thanks!

– Steve Gerhart

A Great Experience!

A great experience from the first estimate, measuring and install. Really well priced and was surprised at how quickly the shower doors were delivered and installed an entire week early. Was very pleased with the entire experience from start to finish.

– Kathleen Ruhl

Super Fast Turnaround Time!

I found this company after looking at many top-rate glass companies in Denver and seeing that I had to fill out forms and wait for them to get back to me. Some took days, and others have yet to call or email back. GCS was easy to text in from the website and talk to someone and get a quote rather quickly with examples over the text message. Within a few mins, I had a quote and an appointment set! That's how you earn the business! Make the initial request EASY and prove what the client is looking for! They were on time for every appointment and were professional. The glass took a few weeks to arrive, but the team kept us in the loop via text and never missed a detail. We are so happy with our choice, and the glass looks fantastic! They even added a complimentary glass coating to keep the soap scum at bay for two years. I'm starting a new project and will use them again in the next few weeks! Highly recommend.

– Alex Tooke

Look No Further!

No need to search any further for a new shower door. Not only is GCS very fair on pricing (believe me, I did my due diligence) but their customer service is out of this world (so rare these days). From working with Chance on pricing, Austin on installing, and Tom on measuring and follow through, everyone was extremely professional. Tom is a perfectionist in the best of ways. His attention to detail is reflective in the quality of work. Thanks team!

– Caitlin Kinnett

Best Experience Ever!

We had the best experience work with GCS Glass! We knew going in some of our product was on back order and would take awhile. We were so impressed with GCS Glasses communication! They always communicated what was going on every time they got an update. We never felt like they “forgot about us” because they were in constant contact. Their workers were great and professional. Price wise they were slightly cheaper than competing companies. We could not be happier with this company.

– Jessica Laue-Flint

Highly Recommend Company

I would highly recommend this company for your shower door. Brandon was quick to respond to my request for quote. He provided excellent details about the options and prices including pictures, all in text so was very convenient.

– Teresa Hastings

Professional staff, Outstanding installers

GCS Glass is the premier company in AZ. Professional staff, outstanding installers. I ordered 3/8" Starphire clear tempered glass, brushed nickel hinges and hardware to match my bathroom fixtures. Emily sent me a detailed invoice with photos of the hardware. This was the finishing touch to the custom bathroom I built. If you want the absolute best GCS will deliver.

– Mark Plennes

Smooth Process, Amazing Quality

We absolutely Love our Glass from GCS Glass Supply. The whole process went so smoothly and the quality is Amazing. Joe and Tim were very responsive each step in the process. The install by Junior and Camden was above our expectations. They were very polite, clean and provided quality craftsmanship. Many thanks GCS Glass. Best regards, Jim & Susan M.

– Jim Mohrig

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