Diagnosing a Leaking Shower
Before fixing a leaking shower, accurate diagnosis of the cause is essential. Not all shower leaks require full re-waterproofing — some can be resolved with targeted repairs. However, getting the diagnosis wrong can mean wasted money on ineffective repairs. This guide helps Brisbane homeowners understand the process.
Step 1: Identify the Source
The first step is determining whether the leak comes from the shower pan (floor), the shower walls, pipe connections, or the shower screen seal. A simple test involves blocking the drain, filling the shower base with water, and monitoring for leaks. If water appears below within 24 hours, the membrane is likely compromised. If the leak only occurs during use, walls or pipe connections may be the issue.
Step 2: Assess the Severity
Minor leaks from deteriorated silicone or cracked grout may be repairable without major work. However, if the waterproofing membrane itself has failed, a full strip-out and re-waterproof is typically required. A QBCC-licensed contractor can conduct moisture testing to determine the extent of the problem.
Repair Options
Depending on the diagnosis, repair options range from simple to comprehensive: silicone replacement at joints and junctions (cheapest option, suitable for minor issues), grout repair and resealing (moderate cost, addresses grout-related water ingress), injection waterproofing behind tiles (mid-range, avoids tile removal in some cases), and full strip-out and re-waterproofing (most expensive but most thorough, required for membrane failure).
When to Call a Professional
While replacing silicone is a DIY-friendly task, any work involving the waterproofing membrane must be carried out by a QBCC-licensed contractor in Queensland. If you suspect membrane failure, persistent dampness below the shower, or if simple repairs have not resolved the issue, professional assessment is recommended.
Finding the Right Contractor
We connect you with QBCC-licensed shower repair specialists across Brisbane who diagnose the problem accurately and recommend cost-effective solutions. Request your free assessment to get the leak identified and a clear repair plan with pricing.