If your shower is leaking, you might assume the problem lies with cracked tiles or faulty plumbing—but in many cases, the real culprit is the grout. So, can regrouting really stop a leaking shower? The answer is yes—if done properly.
Let’s explore how regrouting works and when it can be a reliable solution to stop shower leaks.
🚿 Why Do Showers Leak?
Leaking showers are typically caused by one (or more) of the following:
● Cracked or crumbling grout
● Gaps or holes in the sealant
● Movement in the tiles due to moisture damage
● Old or broken waterproofing membranes
Grout is often the first line of defence against water, but when it starts to break down, water can seep behind the tiles—causing mould, wall damage, and even structural issues.
🧱 What Is Regrouting?
Regrouting is the process of removing old, damaged grout from between tiles and replacing it with fresh grout—ideally a waterproof variety like epoxy grout.
It’s a non-invasive way to restore the waterproof barrier in your shower without removing tiles or undergoing a full renovation.
✅ When Regrouting Can Fix a Leak
Regrouting can effectively stop a leak if:
● The tiles are intact (not loose or broken)
● The leak is caused by surface water penetration, not faulty plumbing or a damaged membrane
● The existing grout is cracked, stained, or missing in areas
In these cases, removing the damaged grout and resealing the area with a waterproof epoxy grout can restore the shower’s integrity and stop water from getting behind the tiles.
❌ When Regrouting Alone Isn’t Enough
Regrouting may not fix your shower if:
● There are loose or hollow tiles (a sign of deeper damage)
● The leak is coming from behind the wall or floor (e.g. broken pipe or failed waterproofing)
● The waterproofing membrane has failed completely
In these situations, regrouting might be part of the solution—but more extensive repairs may be needed.
💡 Why Epoxy Grout Makes a Difference
If you want your regrouting to last—and actually stop the leak—epoxy grout is the superior choice:
● 100% waterproof
● Resists mould and bacteria
● Won’t crack or crumble like cement grout
● Stain-resistant and easy to clean
It’s perfect for high-moisture areas like showers and bathrooms.
🛠️ Leave It to the Professionals
Regrouting may seem like a quick DIY fix, but getting it wrong can lead to bigger leaks and more expensive repairs down the line. A professional will:
● Identify the true cause of the leak
● Use the right materials (like epoxy grout)
● Ensure a clean, watertight finish
💧 Got a Leaky Shower?
At Leaking Showers Sealed, we specialise in leak detection and regrouting solutions that stop water damage fast. Our team will assess the issue, remove old grout, and apply long-lasting epoxy grout for a watertight seal.
👉 Visit our grout replacement page or book your free leak assessment today.