Last updated: 2025-11-5
Introduction: The Urgency of a Leaking Corner
A corner of shower leaking is one of the most frustrating—and common—home maintenance issues. Homeowners often struggle to find a clear fix.
It may look like just a small puddle.
However, long-term seepage causes major damage.
This includes mould growth, structural rot, and expensive floor repairs.
We cut through the confusing advice. This guide offers exclusive, professional strategies.
We address every type of corner shower leaking problem.
You will master the diagnosis and the perfect DIY repair.
The Fix: Shower Screen Leaking at Corner
Why is my straight or curved shower screen still leaking? I already have a bottom seal installed.
Let’s look at a common leak scenario:
Water is escaping from the corner where the screen seal meets the metal hardware.
This is the most common failure point.
It happens right where the bottom shower screen seal meets the metal frame or hinge.
The key problem? That corner area is not fully sealed.
Our solution applies to all curved and straight screens.
It works especially well if your glass screen is fitted over a bath tub.
Our Exclusive Strategy: The RY3463 T-Shaped shower door sweep
Our expert recommendation is to install an additional T-Shape Bottom Seal (RY3463).
- This seal must be fitted on the outside of your existing seal and hardware.
- You will need to trim the RY3463. This allows it to perfectly fit around the protruding metal fittings.
- This creates a high-performance secondary barrier at the point of failure.
Unsure how to cut the seal? Email us directly. We provide fast, clear, and expert guidance.
Why We Skip the PV29 Threshold Seal?
We do not recommend the PV29 drip rail for corner leaks.
The PV29 has a rounded design.
When installed at this critical corner, its performance against corner leakage is inferior to the RY3463.
The PV29 is better suited for general door leakage, not for targeted corner issues.
The Advanced Fix: Shower Enclosure Leaking in Corner
Does the previous screen fix not apply?
Check this common door enclosure leak:
We can clearly see water escaping from the shower door leaking in corner.
This setup already has a bottom seal and a threshold barrier.
The Critical Installation Error
The issue here is the threshold barrier placement.
The threshold barrier must be installed on the outside of the bottom seal.
This is necessary for enhanced protection.
In the image above, the barrier is fitted on the inside. This makes it completely ineffective.
Water breaches the main seal and immediately flows to the outside.
If your glass door and the threshold barrier are on a perfectly straight line, a conventional shower door drip rail is simply not suitable.
You need a specialised seal like the S6DTL.
Because its water-blocking fins extend along the sides rather than the bottom.
This allows it to perfectly avoid obstruction by the threshold seal.
Select the correct size based on your actual gap measurement.
Replacing the current seal with the correct S6DTL type will instantly solve this leakage problem.
Conclusion and Further Assistance
Through these expert diagnostic and repair processes, you can permanently solve specific issues like shower door leaking in corner.
This ensures your shower enclosure is dry, safe, and protected.
Do you have another leak scenario we haven't covered?
We look forward to hearing from you.
We are dedicated to helping you and other UK homeowners facing similar situations.
This article was edited by Laura.
|
Author: Laura Liu & SIMBA Seal Expert Laura joined SIMBA in January 2017 and has since become an integral part of the team. As a seasoned content manager and seal expert, she oversees website optimization and specializes in crafting informative and engaging content about sealing solutions. Her deep knowledge of shower seal technology and market trends ensures SIMBA stays ahead in providing value to customers worldwide. |