If you have noticed damp walls, mould, loose tiles or a musty smell around your bathroom, you might be dealing with a leaking shower. It is one of the most common issues in homes across Brisbane, the Gold Coast and the Sunshine Coast. When it is ignored, it can lead to serious structural damage that costs thousands to repair.
This guide explains why showers leak, how to spot the signs early, and what your repair options are. Whether you are a homeowner or a property manager, these steps will help you protect your property and avoid preventable damage.
What Causes a Shower to Leak?
A leaking shower is not always caused by faulty grout. There are usually deeper issues at play.
Failed waterproofing membrane
Waterproofing is the barrier beneath the tiles that keeps water out of the walls and floors. If this membrane breaks down, separates, or is not installed correctly, water travels into the structure.
Cracked or porous grout
Standard cement grout absorbs moisture over time. As it deteriorates, tiny pathways open up and allow water to escape.
Damaged or missing silicone
Silicone creates a flexible seal at the corners and edges of a shower. When it cracks or splits, water easily runs behind the tiles.
Poor drainage or incorrect fall
If the floor does not slope correctly toward the drain, water pools instead of moving away. Over time, this pooling leads to leaks.
Plumbing or shower screen issues
Tap fittings, old screens and poor sealing can also push water into areas that should stay dry.
Early Warning Signs of a Leaking Shower
Catching a leak early can save you thousands in repairs. Watch for:
- Mould or mildew that keeps returning
- Bubbling or peeling paint
- Damp or swollen skirting boards
- Soft or discoloured plaster
- Water pooling outside the shower
- Hollow or loose tiles
- A persistent musty smell
If you notice any of these symptoms, it is best to arrange a professional inspection.
How Aquatech Diagnoses and Repairs Shower Leaks
Aquatech Grouting specialises in long-lasting shower repairs for homes and commercial properties across South East Queensland. The process is clear, transparent, and designed to give you certainty.
1. Leak detection and inspection
Using moisture meters, thermal imaging and water tests, the team locates the exact cause of the leak.
2. Honest recommendations
There are two main repair paths:
- Regrout and reseal for minor, surface-level issues
- Full shower rebuild for deeper waterproofing failures or structural damage
You will only be recommended what is necessary.
3. Premium repair materials
All repairs use Mapei waterproof epoxy grout and high-grade membranes. These materials resist mould, prevent water absorption and significantly extend the life of the shower.
4. Final testing and handover
Every job is sealed, checked and tested before completion. Aquatech provides workmanship and waterproofing warranties for peace of mind.
Why You Should Not Ignore a Leaking Shower
A small leak can quickly become a major problem. Unchecked moisture can lead to:
- Rotten framing
- Structural damage
- Mould contamination
- Swollen cabinetry
- Expensive rebuilds
Early repair is always the cheaper choice.
