Why is my Shower Leaking? Understanding the Problem Explained by Trent Moreland

Shower leak onto carpet
Shower leak onto carpet at threshold


Leaking shower is a common problem that most homeowners have to deal with at some point. The causes of a leaking shower can be many, making it a challenging task for homeowners to pinpoint the exact reason behind it. But the most common reason behind shower leakage is faulty waterproofing. In this blog post, we will discuss the reasons for shower leakage and how to prevent it. Trent Moreland, an expert in plumbing and waterproofing, has explained the problem, and we are here to break it down for you.

It’s a known fact that most showers built before the late 80s had failed waterproofing. Modern-day showers come with a waterproofing membrane or shower tray, which is a requirement as per building regulations. However, despite this, there are still chances of waterproofing failure, and you might end up with a leaking shower.

There are four broad areas where most waterproofing failures occur: design and construction defects, incorrect preparation, application errors and incorrect product selection, and inadequate protection. Any of these areas can lead to water leaks, which can pose several threats to your bathroom.

When there is a leakage, water seeps into the walls and floor, leading to dampness, unpleasant odor, and mold. Even the adjoining rooms of your bathroom can become damp, creating the perfect environment for rot and white ants. Inadequate waterproofing not only affects the aesthetic value of your home, but it can also lead to significant structural damage.

Most showers built onto a stud wall will eventually start leaking because of a gap that develops between the tiled wall and the shower floor. This gap is caused by the wall’s vibration, arising from the opening and closing of doors, and minimal movements of the house structure. The grouting between the tiles is not strong enough to resist such expansion, or seal the gap between the floor and the wall, resulting in leakage.

To prevent water ingress below the tiled surface and stop water from getting down to the failed membrane, Epoxy Grout Pro has a resealing solution using engineered and modified epoxy grout. This solution prevents any water from entering the shower, providing an ultimate solution to the issue of leakage.


In conclusion, water leakage in your shower can be a severe problem with long-lasting consequences. Identifying the problem’s roots can be tricky, but understanding the potential causes will enable you to take appropriate action. Trent Moreland’s expertise has given us invaluable insights into the different reasons for shower leakage and the importance of waterproofing for every homeowner. So, if you are constantly trying to deal with the nuisance of a leaking shower, it’s high time you take the necessary steps to address it. Protect your home and ensure that you have adequate waterproofing measures in place to prevent any long-term damage.