It is the question we hear more than any other: my shower is leaking — will regrouting actually fix it? In the majority of cases, yes. Leaking showers are rarely caused by cracked tiles. In most cases, water escapes through failed grout, broken seals or gaps around junctions and penetrations, and a proper regrout addresses all three.
Why grout is usually the culprit
Grout sits between every tile in your shower, which means even small failures give water a surprisingly large network of escape routes. Cement grout is also slightly porous by nature, and as it ages it cracks, crumbles and loses its bond to the tile edges. Once that happens, every shower sends a little more water behind the walls and under the floor — where it travels unseen.
What regrouting fixes
A professional regrout removes the failed grout throughout the shower, repairs the vulnerable junctions and penetrations, and replaces everything with new grout and sealant systems designed for wet areas. That restores the waterproof integrity of the tiled surface itself — which is where the overwhelming majority of leaks begin. It is why every full shower regrout we complete is confident enough to carry a 10-year waterproof warranty.
What regrouting does not fix
Honesty matters here: not every leak is a grout leak. If a pipe within the wall has failed, if the waste connection under the floor is leaking, or if the waterproofing membrane beneath the tiles has genuinely broken down across the whole recess, regrouting alone will not solve it. That is exactly why our process starts with an inspection rather than a quote over the phone — a technician assesses the shower to confirm where the water is actually escaping.
Beware the silicone shortcut
Many homeowners attempt to stop a leak with a bead of silicone or a paint-on clear sealer. These surface fixes can mask the issue for a few weeks or months, but they do not address the failed grout underneath — and in the meantime, water keeps finding its way in. The longer a leak runs, the more likely it is to progress from a grout repair to plaster, skirting and structural repairs in adjoining rooms.
The bottom line
If your shower is leaking, the odds are strongly in your favour that regrouting will stop it — permanently, without removing a single tile. Book an obligation-free assessment, and if the problem sits outside our scope, we will tell you straight and point you toward the right trade.
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