Painting Bathroom Tiles in London: What Works and What Doesn't

Can You Really Paint Bathroom Tiles?

The short answer is yes — with the right products, the right preparation and realistic expectations. Painting bathroom tiles has become increasingly popular in London, particularly in rented properties and older flats where full re-tiling is impractical, expensive or complicated by tenancy agreements. It is also an option for homeowners who want to refresh dated tiles without the disruption of full demolition.

The longer answer involves some important caveats. Painted tiles will not perform identically to new tiles and the finish will not last indefinitely. In high-use areas — particularly around showers where tiles are subjected daily to hot water, steam and physical contact — the paint system will degrade faster than in drier zones such as above a basin or around a bath that sees less use.

This guide explains the process honestly, so you can decide whether it is right for your situation.

When Tile Painting Makes Sense

In London flats, Victorian terraces and period conversions across areas like Hammersmith, Wandsworth and Islington, bathroom re-tiling is often a major undertaking. Original tiles may be set in thick lime mortar, removal can damage the wall substrate and the disruption is significant. Painting offers a practical alternative when:

• The tiles are in good structural condition — firmly adhered, no cracked or loose tiles
• The grout is sound and not extensively stained or mouldy (beyond what can be cleaned)
• The area being painted is not a direct shower zone — or you are willing to accept a shorter lifespan if it is
• You want a quick, low-disruption refresh rather than a permanent solution

Preparation: The Make-or-Break Stage

Tile painting fails almost entirely due to inadequate preparation. Tiles are non-porous and any grease, soap scum, limescale or residue on the surface will prevent the primer from adhering properly. Once adhesion fails, the paint will peel in sheets.

Clean thoroughly. Use a dedicated tile degreaser or a diluted sugar soap solution and scrub all surfaces — including the grout lines. Pay particular attention to areas around taps and soap dishes where soap scum and limescale accumulate. Rinse completely and allow to dry fully. In London's hard water areas this step often requires a limescale remover applied first.

Sand the glaze lightly. Use wet-and-dry paper (120 or 180 grit) to lightly abrade the glazed surface. This gives the bonding primer a mechanical key and significantly improves adhesion. It does not need to be aggressive — you are dulling the glaze, not stripping it.

Repair grout lines. Any failed, cracked or crumbling grout should be raked out and replaced with fresh grout before painting. Painting over failing grout simply makes the problem less visible temporarily.

Wipe down and allow to dry completely. Any moisture on the tile surface when you apply primer will cause adhesion failure. Allow at least 24 hours after cleaning in a ventilated bathroom.

Bonding Primer: The Critical Foundation

Do not attempt to paint tiles without a dedicated bonding primer. Standard wood or masonry primers will not adhere to glazed ceramic tile. Specialist tile bonding primers contain adhesion promoters that key to the non-porous surface and provide a stable base for the topcoat.

Apply one coat of bonding primer to all prepared tile surfaces, working the product into grout lines. Allow to cure for the manufacturer's specified time — typically two to four hours — before applying the topcoat.

Recommended bonding primers available in the UK include Rustins Tile Paint Primer, Zinsser BIN (shellac-based, excellent adhesion) and dedicated products from Ronseal and Johnstone's Tile Paint systems.

Specialist Tile Paints

Once primed, use a product specifically formulated as tile paint rather than standard eggshell or satinwood. Tile paints are designed to be hard-wearing, moisture-resistant and flexible enough to cope with thermal expansion of the tile beneath.

Brands that perform well in UK bathrooms include:

• Rust-Oleum Tile Transformations — a two-part system that includes an etching liquid, coating and topcoat sealer
• Ronseal One Coat Tile Paint — a simpler single-product option suitable for walls in moderate-use areas
• Dulux Bathroom Tile Paint — widely available and performs adequately in lower-humidity zones

Apply two thin coats rather than one thick coat, allowing each coat to dry fully. In bathroom conditions this means good ventilation — open windows and run any extractor fan during and after application.

Realistic Expectations

A well-executed tile painting job in a Kensington or Belgravia bathroom will look clean, fresh and considerably better than aged, stained tiles. However, it is worth being clear about what to expect:

• In non-shower areas, a painted tile finish can last three to five years with care
• In direct shower zones, one to two years is more realistic before touch-up or repainting is needed
• The grout lines will show through the paint, which some find attractive and others do not
• Any chip or knock will expose the tile colour beneath if it differs from the paint colour

For a rental property in Fulham or Balham, tile painting is an excellent way to present the bathroom well without significant capital expenditure. For a long-term family home where durability matters most, investing in proper re-tiling with a good tile choice is likely the better decision over a five to ten year horizon.