A leaking shower rarely shows itself inside the shower. It turns up as a loose tile, a musty smell, a skirting board that never dries or a stain on the other side of the wall. Bathroom Renovation Murrumbeena assesses and repairs leaking showers in Murrumbeena, Hughesdale, Carnegie, Oakleigh and nearby suburbs. We start by finding where the water is actually going.
From the outside, a shower only looks watertight. The real work is done by the membrane under the tiles, and when that fails, clean grout won’t stop the leak.
Reference photo: shower fittings on white tiled walls.
Water that gets past the shower surface doesn’t drain away. It sits in the tile bed, soaks into timber and moves sideways under walls. By the time you notice it, it has usually been happening for a while. Any one of these signs is worth checking. Two or more together is a strong reason to book an assessment.
Want to understand how wet areas are protected? Read the Bathroom Waterproofing Guide for Homeowners.
Tap the floor tiles near the shower. If they sound hollow or rock underfoot, the adhesive bed has often been wet for some time.
Grout lines that crumble, darken or open up let water past the surface. In a shower, they are often the first sign of movement underneath.
If mould returns to the grout and silicone within days of cleaning, moisture is probably sitting behind the tiles, not just on them.
Skirting boards, architraves, vanity kickboards or cabinet bases near the shower may feel soft, bubble, swell or shed paint. That means they are drawing water up from the floor.
Watermarks on the other side of the shower wall, in a hallway or on a ceiling below an upstairs bathroom show that water is travelling through the structure.
Most shower leaks come down to one of four failure points. Often there is more than one. That’s why we don’t treat the visible symptom as the diagnosis.
The membrane beneath the screed and tiles is the true barrier. It may have been poorly applied, stopped short of the walls or split at a corner. Then water reaches the structure, however good the tiles look.
Cement-based grout isn’t waterproof, and silicone at corners and junctions perishes over time. Once they fail, water sits against the bedding and finds any weakness below.
The floor waste has to connect to the membrane through a puddle flange. Leaks often start at a missing flange or a poor seal. Floor falls that let water pond away from the drain cause them too.
Sometimes the surfaces are fine. Instead, the water comes from a mixer body, a shower arm connection or a supply pipe inside the wall.
Before we recommend any work, we look at the tiles, grout, silicone, falls, waste and the rooms around the shower to work out where the water is escaping. That’s what decides between a targeted repair and a rebuild.
When you get in touch, have clear photos ready. Shoot the shower floor, grout lines, silicone joints and any marks on nearby walls, skirting or ceilings. They make the first conversation far more useful.
Sometimes the membrane is sound and the problem is limited to perished silicone, failed grout or a leaking fitting. In that case, a targeted repair can deal with the cause without stripping the shower. The work may involve raking out and replacing grout and silicone, or opening up the wall to repair a fitting.
This is only the right call when the assessment shows the water hasn’t got past the membrane.
Surface fixes won’t last if the membrane has failed, tiles are drummy across the floor or the falls send water the wrong way. The shower has to be stripped back and the substrate checked. Then a new membrane goes on, is left to cure and is re-tiled.
See how that stage runs on Bathroom Waterproofing. If you’d like to rethink the layout at the same time, look at Shower Renovations.
Reference photo: tiled shower wall and mixer.
Regrouting helps if the grout is the only thing that has failed. If water has already got past the membrane, or there was never a proper membrane, new grout covers the symptom and the leak carries on. An assessment tells you which situation you’re in.
Water trapped in walls and floors can damage timber framing, skirting and joinery, and it encourages mould. Get it looked at sooner rather than later, and use the shower less if you can see damage spreading.
Not always. It depends on what the assessment finds. A targeted repair keeps tiles in place where it can. A failed membrane usually means removing the shower tiles so it can be replaced properly, followed by new bathroom tiling.
Yes. If the whole room is due for an update, the repair can be folded into a full bathroom renovation. Waterproofing then runs as its own stage in our 12-stage process.
We’re based around Murrumbeena and work in nearby suburbs including Carnegie, Hughesdale, Oakleigh, Chadstone, Malvern East, Bentleigh East and Ormond. See service areas.
Tell us what you’re seeing and where. We’ll use that to start working out whether your shower needs a targeted repair or a full re-waterproof. Prefer to ask a question first? Use the contact page.