Tile and Grout Care: The Complete Maintenance Guide
How to keep tiles and grout in good condition, what to clean them with, what damages them, and the point where maintenance stops being worth it.
6 August 2026 • 4 min read
Tiles are one of the most durable surfaces in a house. Grout is not, and almost every tile problem people describe is actually a grout, silicone or sealing problem.
This guide covers what keeps them in good order, what quietly destroys them, and when maintenance has stopped being the answer.
Understanding what you are looking after
Tiles are the wearing surface. Glazed porcelain and ceramic are effectively impervious on the face. Natural stone is porous and is a different maintenance proposition entirely.
Grout is porous by design in its common cement-based form. It absorbs water, and with it soap, minerals and anything else present. That is why it discolours and why it needs sealing.
Silicone is at internal corners and the wall-to-floor junction, where the structure moves. It is a consumable. It will eventually discolour or fail and need replacing, and that is normal rather than a defect.
The membrane is under all of it and is the actual waterproofing. None of the maintenance below affects it, which matters when deciding whether a problem is cosmetic or structural.
Routine cleaning
Use a pH neutral cleaner. This is the single most useful habit. Strong acidic cleaners attack cement grout and etch calcium-based stone such as marble and limestone. Strong alkaline cleaners degrade grout sealer.
Soft brush, not abrasive pads. Abrasives scratch glazed and polished surfaces permanently, and the scratches then hold dirt, so the surface gets harder to clean over time.
Squeegee the shower. Thirty seconds after each use removes most of the water that leaves mineral deposits and feeds mould. It is the highest-value habit in this entire guide.
Ventilate. Run the exhaust fan during and after showering. Most mould problems are ventilation problems wearing a disguise.
Detail on both surfaces: cleaning shower tiles and cleaning grout.
Sealing
Cement-based grout benefits from sealing, and it needs redoing periodically. The water-drop test tells you when: if water darkens the grout and soaks in rather than beading, it is due.
Natural stone tiles need sealing as well as the grout, on a schedule that depends on the stone.
Epoxy grout does not need sealing. It is harder to install and costs more, which is why it is not universal, but in a heavily used shower it is worth considering. How to seal grout properly.
Mould
Mould in a shower is common and is usually surface growth on silicone and grout rather than anything structural.
Ventilation and drying are the real fix. Cleaning removes what is there, but if the room stays damp for hours after every shower it will return. Dealing with shower mould.
Persistent black mould coming back within days in the same spot, especially at a junction, can mean moisture is getting behind the surface. That is a different problem.
Repairs worth doing
Replacing silicone. A consumable with a finite life. Cutting out old silicone and replacing it is straightforward and makes a shower look years younger.
Regrouting. Where grout has cracked, crumbled or stained beyond cleaning, and the tiles and structure are sound. What regrouting involves and costs.
Replacing a chipped tile. Very doable if you have offcuts. How it is done.
When maintenance is not the answer
There is a point where cleaning and regrouting are just delaying a decision. The signs that the problem is behind the tiles:
- Drummy tiles, sounding hollow when tapped
- Efflorescence, the white crystalline deposit in grout lines
- Staining on the ceiling below
- Swelling or soft wall sheeting
- Mould returning in the same place within days of cleaning
Any of these means water is getting past the surface. Regrouting a wet area whose membrane has failed hides the symptom while the damage continues underneath. The full list of warning signs is here.
The one-minute version
Squeegee the shower. Run the fan. Clean with something pH neutral and a soft brush. Reseal the grout when water stops beading. Replace silicone when it goes. Watch for drummy tiles and efflorescence, because those mean something else.
If you have reached the point where the bathroom needs more than maintenance, our tiling services cover regrouting and repairs, and our renovation packages cover the full rebuild.
Common questions
How often should bathroom grout be sealed?
Cement-based grout in a shower generally benefits from resealing every 1 to 2 years, sooner in a heavily used shower. Epoxy grout does not need sealing. A simple test is to drop water on the grout line, and if it darkens and soaks in rather than beading, it is due.
What is the best thing to clean bathroom tiles with?
A pH neutral cleaner and a soft brush for routine cleaning. Avoid acidic cleaners on natural stone and on cement grout, and avoid abrasive pads on glazed and polished surfaces. Most damage we see comes from cleaning products rather than wear.
When is regrouting not enough?
When the problem is behind the tiles rather than in the joints. Drummy tiles, efflorescence, ceiling stains below and swelling wall sheeting all indicate water getting past the surface, and regrouting a failed wet area only hides it for a while.
Everything in this guide
- Can You Tile Over Existing Tiles?It is possible in some situations and a bad idea in others. What has to be true first, why it rarely works in a wet area, and what it costs you later.
- How Long Does Grout Take to Dry?Surface dry in hours, usable in about a day, fully cured in several. Why the difference matters, and what happens when a shower is used too soon.
- How to Clean Grout Without Wrecking ItWhy grout discolours, what actually cleans it, which methods damage it, and how to tell when cleaning will not fix it.
- How to Clean Shower Tiles ProperlyWhat actually removes soap scum and mineral deposits, which cleaners damage tiles and grout, and the 30 second habit that prevents most of it.
- How to Fix a Chipped or Cracked TileWhen a chip can be filled, when the tile has to be replaced, how a single tile is removed without damaging its neighbours, and when a crack means something else.
- How to Get Rid of Shower Mould and Keep It AwayWhy mould grows in showers, what actually removes it from grout and silicone, and why cleaning alone never keeps it away for long.
- How to Seal Grout, and How OftenWhich grout needs sealing, how to test whether yours is due, how to apply sealer properly, and the mistakes that make it useless.
- Regrouting a Shower: What It Involves and What It CostsWhen regrouting is worth doing, what the job actually involves, roughly what it costs in Sydney, and when it is only hiding a bigger problem.
Want this done properly the first time?
We have been tiling and renovating bathrooms across Sydney for 28+ years. Fixed quotes, no surprises, and the wet areas done to the standard.