Wet Room Maintenance Guide

Grout is porous by nature, and even good quality grout will absorb some moisture and dirt over time if it is not looked after. Wiping down tiled surfaces after use, or at least giving the room a chance to dry out with ventilation, reduces how much moisture sits in the grout lines day to day, which slows down discolouration and the growth of mould or mildew in the joints.

If grout does start to darken or show mould despite regular cleaning, a proper clean with a dedicated grout cleaner, followed by a grout sealer, can restore it without needing to regrout the whole room. Sealing grout every couple of years is a sensible habit in a wet room specifically, because the floor and lower walls see far more constant water contact than a standard bathroom, and sealed grout resists staining and mould growth considerably better than unsealed grout.

The silicone seals around the drain, at the floor to wall junction, and around any shower screen or panel are doing real waterproofing work, not just tidying up the finish. Over time silicone can crack, shrink slightly, or discolour, particularly in corners that see the most water flow, and once it has failed it stops doing its job even if it still looks mostly intact from a distance.

Check these joints every few months for any visible cracking, gaps, or areas where the silicone has pulled away from the tile or floor. Address small problems early, since re-siliconing a joint is a simple, low cost job, but letting a failed seal go unnoticed for months allows water to get behind or beneath the tiling, which is a much bigger problem to fix once it has happened.

Wet room drains, whether linear or point drains, need to stay clear to work properly, and a slow or blocked drain is often the first sign that something needs attention. Hair, soap residue and general grime build up gradually in the drain and the trap beneath it, and most linear and point drains have a removable cover or grate specifically so this can be cleaned out without needing a plumber for routine maintenance.

We would suggest lifting the drain cover and clearing any visible debris every month or so, more often in a busy family bathroom used daily by several people. If water is draining noticeably slower despite a clear visible grate, the blockage may be further down the waste run, which is when it is worth getting someone in rather than using strong chemical drain cleaners, which can sometimes damage seals and pipework over repeated use.

Strong bleach based cleaners and anything containing harsh acids can damage both grout sealant and silicone over repeated use, drying it out and making it more prone to cracking sooner than it should. Similarly, abrasive scouring pads or powders can scratch tile surfaces, particularly on polished or lower gloss finishes, dulling the surface and making it collect dirt more easily over time.

A mild, pH neutral bathroom cleaner used regularly does a better job long term than an aggressive product used occasionally, because it cleans effectively without breaking down the sealant and grout that are protecting the room's waterproofing beneath the surface. If you are ever unsure whether a product is suitable, checking the tile and sealant manufacturer's guidance, where available, is worth the couple of minutes it takes.

You cannot see the tanking membrane itself once tiling is complete, but there are indirect signs that tell you it is doing its job or that something has gone wrong. If you have access to a space below or adjoining the wet room, such as a ceiling in a room underneath, checking periodically for damp patches, discolouration, or a musty smell is a sensible habit, particularly in the first year or two after installation when any installation fault is most likely to show itself.

Inside the wet room itself, watch for any tiles that sound hollow when tapped gently, which can indicate the tile has debonded from the surface beneath, sometimes linked to moisture getting in behind it. A single hollow tile is not necessarily an emergency, but it is worth having checked rather than ignored, since it can be an early sign of a wider problem with adhesion or moisture ingress.

Some signs need attention sooner rather than later. Water pooling in the wet room that did not pool before can indicate a partial drain blockage or, less commonly, a change in the floor's fall due to structural movement. Damp patches appearing on a ceiling or wall below or adjoining the wet room are a clear sign that water is getting through somewhere and need investigating promptly rather than monitored.

A persistent musty smell in the room despite good ventilation and cleaning, visible cracking in tiles that was not there before, or silicone that has visibly separated from the tile or floor across a wider area rather than a small localised spot, are all reasons to get someone to look at it rather than wait. Catching these issues early, while they are still a re-seal or a localised repair, is far less disruptive and costly than waiting until the tanking has genuinely failed and tiles need to come up.

If your wet room needs attention, whether that is re-sealing, a drain issue, or you are worried about a hollow tile or a damp patch nearby, we would rather come and check it properly than have you guess and hope it resolves itself. Small problems caught early are usually straightforward and affordable to put right.

We handle plumbing, tiling and fitting ourselves, so whether the issue turns out to be a simple silicone job or something that needs the tanking properly assessed, the same team can deal with it without you having to coordinate multiple trades. If you are in Gloucester, Cheltenham, Tewkesbury, Stroud, Newent or the Forest of Dean, call 07927 593 585 or get in touch through /contact for a free written quote and, where useful, a home visit to have a proper look.