Cleaning Bathroom Tiles: What Works, What Damages, What to Avoid

A well-tiled bathroom should look as good in five years as it did on the day it was finished. Whether it actually does depends almost entirely on how it is cleaned. The wrong products or wrong techniques can cause damage that no installation skill can prevent. The right routine takes minutes a week and protects the finish indefinitely.

This guide is what I tell clients to do (and not do) to keep their tiles looking right.

Navy hexagon mosaic bathroom, Beckenham. Mosaic surfaces have more grout than tile by area, which makes the cleaning routine more important. The right products keep the grout fresh; the wrong products discolour it permanently. Mosaic tiling service

Daily care: 30 seconds, prevents 90% of problems

The single most effective bathroom tile maintenance is wiping down the shower walls and screen after each use. A microfibre cloth or squeegee removes water before it dries and leaves limescale behind.

This takes 30 seconds. It eliminates the need for the heavy weekly cleaning that most bathrooms require. Limescale that never builds up does not need removing.

For the rest of the bathroom (walls, floor, basin), a similar quick wipe at the end of the day prevents soap residue and water marks from accumulating.

This sounds obsessive. It is not. It is the difference between a bathroom that looks good for 20 years and one that needs deep cleaning every week.

Weekly cleaning: products that work

For routine weekly cleaning, the right products depend on the tile type.

Porcelain and ceramic tiles

pH neutral all-purpose cleaner is the safest default. Method, Ecover, Lithofin Easy Clean, or any specifically labelled “tile cleaner” or “ph neutral cleaner”.

Dilute washing-up liquid in warm water works for gentle cleaning. A small amount (a few drops in a bucket) is enough.

Avoid: Bleach, vinegar, lemon-based cleaners, abrasive scouring powders. These are unnecessary for routine cleaning and accumulate damage to grout (bleach) or seal (acids).

Natural stone tiles

pH neutral stone cleaner specifically formulated for natural stone. LTP Waxwash, Lithofin Easy Care, Aqua Mix Stone and Tile Cleaner.

Plain warm water for routine cleaning. Often adequate.

Avoid absolutely: Vinegar, lemon, acidic cleaners of any kind, bleach, abrasive products, standard household bathroom cleaners (most contain acids). One acidic cleaner application can permanently etch the stone surface. See natural stone tile care.

Grout

Routine grout cleaning: A soft brush (an old toothbrush works) with the pH neutral cleaner used for the tiles. Scrub the grout lines, rinse with clean water.

Discoloured grout: Hydrogen peroxide-based grout cleaners (HG Mould Spray, Astonish Mould and Mildew) lift mould and biological staining. Apply, leave for 5-10 minutes, scrub, rinse. Less aggressive than bleach.

Severely discoloured grout: May need re-grouting or grout colour sealer to restore the original appearance.

Dealing with specific problems

Limescale

Hard water in South East London creates limescale on shower screens, tiles, and chrome fittings. The faster you remove it, the easier it is.

Light limescale on porcelain or ceramic: A mild limescale remover (HG Bathroom Cleaner, Viakal) with a soft cloth. Apply, leave briefly, wipe off, rinse with water.

Heavier limescale build-up: Repeat applications. Avoid abrasive scrubbing on glazed tiles as it can dull the surface over time.

On natural stone: Do not use limescale remover. Acids etch stone permanently. Prevent rather than treat — wipe surfaces dry after use.

On grout: Limescale can build up on grout where water sits. A grout brush with limescale remover, then thorough rinsing.

Soap scum and body oil

Common in showers and around baths. Builds up gradually and creates a dull film over the tiles.

Treatment: Bathroom cleaners formulated for soap scum (Mr Muscle Bathroom, Cif Bathroom) work well on porcelain and ceramic. For natural stone, use a stone-safe degreaser.

Prevention: The same daily wipe that prevents limescale also prevents soap scum.

Mould on grout

White grout in showers is particularly prone to mould growth. The wet, warm, dark conditions are ideal for mould to develop.

Treatment: Hydrogen peroxide-based mould cleaners. Apply, leave 10-15 minutes, scrub, rinse. May require multiple applications.

Prevention: Ventilation is the most important factor. Run the bathroom extractor during and after showers. Open the window if possible. Reduce moisture, reduce mould growth.

Permanent fix: Replace cement grout with epoxy grout in mould-prone areas. Epoxy grout is non-porous and does not support mould growth.

Stains on natural stone

Most stains on stone are from spilled liquids that absorbed into the porous surface before being wiped up.

Recent stains: A poultice of baking soda and water can sometimes draw the stain out. Apply, cover with plastic wrap, leave 24 hours, remove and rinse.

Older stains: Often require professional stone restoration. Specialist poultices and honing equipment can address damage that home cleaning cannot.

Etching: Acid damage that has dulled the stone surface cannot be cleaned away. Restoration requires diamond honing by a stone restoration specialist.

What damages tiles permanently

Acidic cleaners on natural stone. Etches the surface. Irreversible without professional restoration.

Bleach on grout (excessive use). Degrades the cement binding agent in the grout over time, weakening the joint and accelerating discolouration.

Abrasive scourers on glazed tiles. Microscratches the surface, creating a permanent dull patch where grime gets caught.

Wire brushes on grout. Can damage the grout and the tile edges around it.

Pressure washers in bathrooms. Excessive pressure can dislodge grout, force water behind tiles, and damage seals around fixtures.

Steam cleaners on natural stone or sealed grout. Heat and pressure can damage seals and finishes.

Strong solvents (acetone, paint thinner). Can damage tile glazes and degrade silicone joints.

Routine that actually works

Daily (30 seconds): Squeegee or wipe shower walls after use. Quick wipe of basin and tap area.

Weekly (10 minutes): Spray pH neutral cleaner on walls and floor, leave 2-3 minutes, wipe down with microfibre cloth, rinse with water. Brush grout lines.

Monthly (20 minutes): Deeper clean with appropriate product for any limescale, soap scum, or grout discolouration. Check sealant lines around the bath and basin for any cracks or mould.

Annually (1 hour): Re-seal grout if cement-based. Re-seal natural stone if applicable. Check the silicone joints and replace if showing damage.

This routine maintains the bathroom indefinitely without the heavy intervention that neglected bathrooms require.

When to call for help

If the bathroom has reached a point where home cleaning is not restoring it, professional help is available:

Tile and grout cleaning specialist: Deep clean services using professional equipment. Can restore heavily neglected tiles and grout to near-new condition.

Stone restoration specialist: For etched or damaged natural stone. Diamond honing and re-polishing.

Tiler (re-grouting or replacement): If grout is beyond cleaning, removal and re-grouting is straightforward. If individual tiles are damaged, replacement is possible.

For tile replacement, re-grouting, or any tiling work in Bromley and South East London, get in touch. See also: natural stone tile care | grout colour guide | bathroom tiles complete guide