Painting Bathroom and Kitchen Tiles in London: When It Works and When It Doesn't

Painting Tiles: The Honest London Decorator's View

Tile painting is one of those subjects where the internet is full of optimistic DIY content and the reality — in a London bathroom that gets daily use from a family or professional sharers — is somewhat more nuanced. It can work very well. It can also fail within months. The difference is preparation, product choice, and realistic expectations about what you are asking the paint to do.

In this guide, we give you the honest view from a professional perspective. We explain when painting tiles makes good sense in a London property, what the correct system is, what products we use and recommend, and what durability you should realistically expect.

When Painting Tiles Makes Sense

The case for painting tiles is usually one of cost and disruption. In a London renovation context — where a full bathroom retile requires stripping out the existing tiles, disposing of the waste, potentially replastering the walls, procuring new tiles (which in a period property may need to match existing patterns), and then relaying — the costs mount quickly. A professional tile paint job, done correctly, typically costs a fraction of a full retile.

The right scenarios for tile painting in London include:

A rental property needing an update between tenancies. A tired-looking bathroom with perfectly serviceable off-white tiles that have stained grout and a generally dated appearance can be transformed with a professional tile paint job. The tiles are structurally fine; they just look depressing. A fresh coat of paint and treated grout lines can make a significant difference to letting photographs and tenant satisfaction.

A property being prepared for sale where a full retile would exceed the uplift in value it would generate. In certain London markets — particularly for smaller flats — the cost-benefit of a full retile does not stack up. A well-executed tile paint job at a fraction of the cost can produce a similar cosmetic improvement.

A design change without structural commitment. If you are uncertain whether you want to stay with white tiles permanently, painting is a lower-commitment way to experiment with colour. Popular choices in London bathrooms at the moment include deep navy, forest green, and dusty sage — all of which read very differently from white and can transform a functional bathroom into something with genuine character.

When Tile Painting Is Not the Right Answer

We are equally clear about when we advise against it:

Heavily trafficked or steam-saturated spaces. An en-suite shower enclosure that is used twice daily by two adults in a London flat generates a level of sustained moisture and temperature cycling that will challenge even the best tile paint system. Tiles in direct contact with shower water — splash zones, floor-level areas, grout joints — are the most vulnerable. If the tiles are inside the shower tray area, we typically advise against painting.

Tiles with structural problems. Hollow-sounding tiles (tap each one), tiles that have cracked at the substrate, tiles with rising damp behind them, or tiles that were poorly laid in the first place will fail regardless of what you put on top. Painting is a surface treatment, not a structural fix.

Properties where the tile is a genuinely valuable original feature. In some higher-end London properties — particularly those with original Victorian or Edwardian encaustic floor tiles, Art Nouveau bathroom tiles, or hand-painted bespoke tilework — painting would destroy a heritage feature that cannot be recovered. These should be professionally cleaned, not painted.

Tile Primer: The Non-Negotiable Step

The single most important factor in successful tile painting is the primer. Tiles have an extremely low-absorption, non-porous surface — which is the whole point of tiles — and standard emulsion or gloss will not bond to them without a specialist primer.

The primers we use are:

Zinsser Bulls Eye 1-2-3 (water-based): A highly effective multi-surface primer that bonds to ceramic and porcelain tiles, glass, and other slick surfaces. Dries quickly, low odour, and can be overcoated in thirty minutes to an hour. Our first choice for most tile priming applications.

Rustins Tile and Melamine Primer: An oil-based option with very high adhesion. Stronger solvent smell than the Zinsser, but excellent bonding to difficult surfaces including high-gloss tiles. Useful where the tile surface has a particularly resistant finish or has been previously treated with a sealer.

The primer coat must cover every tile fully and must not be rushed. Missed areas — typically around the edges of tiles and in corners — will produce adhesion failures at exactly those points. Allow the primer to cure fully before overcoating: at least 24 hours for the Zinsser, longer for the Rustins in cold or humid conditions.

Two-Pack Tile Paint vs Single-Pack Systems

Once the primer is applied, the topcoat choice is between a two-pack (two-component) tile paint and a single-pack product.

Two-pack tile paints — such as Ronseal's Ultimate Tile Paint or specialist trade products like Jotun Hardtop AX — incorporate an activator or hardener that is mixed with the base immediately before application. The chemical curing reaction produces a finish that is significantly harder, more chemically resistant, and more durable than a single-pack film. Two-pack systems are the professional choice for bathrooms that will see regular use.

The trade-offs are: limited working time after mixing (pot life is typically thirty to sixty minutes, so small batches must be mixed as needed), higher cost, and slightly more complex application. The finish, once fully cured — which takes several days to a week for full hardness — is extremely durable.

Single-pack tile paints — such as Ronseal Tile Paint or Rust-Oleum Tile Paint — are simpler to use and available in a wide range of colours. They are adequate for lightly used bathrooms and for feature-wall applications where the tiles are not in direct contact with water. For a heavy-use London bathroom with two or more people using the shower daily, a single-pack system will start to show wear within one to two years.

Our recommendation for professional tile repainting in London: two-pack for any bathroom, single-pack only for dry kitchen splashback tiles where the aesthetic change is the priority and durability is secondary.

Colour Choices for London Bathrooms

The shift away from white tiles in London bathrooms has been marked over the past five years. The options we most frequently deliver are:

Deep navy (Farrow & Ball Hague Blue or equivalent): Works beautifully in a bathroom with good natural light or warm artificial lighting. Against white sanitaryware — particularly freestanding baths or wall-hung basins — it is genuinely striking. In a small north-facing London bathroom, however, it can feel oppressive.

Forest green (similar to Farrow & Ball Calke Green or Mylands Malt): Very popular in period London bathrooms. Green reads as calm and natural in a bathroom context, and works with both brass and chrome fittings.

Dusty sage or khaki: A more muted, earthy approach that photographs well and appeals to a broad market for rental and sale properties.

White or near-white: If the goal is a clean, fresh update rather than a colour transformation, painting tired cream or yellowed tiles in a clean white (Dulux Trade Pure Brilliant White applied over primer) is effective and universally appealing.

Avoid: very dark colours in small bathrooms with no natural light, and high-gloss finishes on textured tiles — the sheen exaggerates the texture and looks cheap.

Grout Treatment

Grout is often the most visually degraded part of a bathroom that is otherwise structurally sound. Options for treating grout alongside a tile paint job:

Grout pen: For clean-lined, well-maintained grout that has simply discoloured, a grout pen (Regrout brand or similar) applied over cleaned grout lines produces a clean, bright result at minimal cost. This is adequate for rental property preparation.

Grout paint (brush applied): For wider grout joints or where the grout pen would take too long, a brush-applied grout reviver or tile and grout paint applied after the tile paint is complete. Apply carefully, keeping off the freshly painted tile surface.

Painting over the grout: When painting tiles with a tile paint system, the grout lines will be covered along with the tiles. The paint will bridge the grout line, and the result will look like continuous painted tiles. This is often visually preferable to the grout showing through, particularly if the grout is badly stained. It also seals the grout, which in a damp London bathroom can reduce mould growth at the joints.

How Long Does Tile Paint Last in a London Bathroom?

Honest expectations, based on our experience:

• Two-pack system, properly applied, en-suite with two daily users: Three to five years before visible wear in the shower zone, longer on dry areas.
• Two-pack system on a lightly used guest bathroom: Five to eight years with care.
• Single-pack on a dry kitchen splashback: Three to five years before showing scuffs and cleaning marks.
• Single-pack on a heavy-use bathroom: One to two years, possibly less.

These figures assume correct preparation and application. A two-pack system applied over insufficient primer, or over tiles with adhesion issues, can fail within months.

Our Tile Painting Service

Belgravia Painters & Decorators offers a professional tile painting service across central and west London. We use two-pack systems as standard for bathrooms and prepare all surfaces correctly before application. Contact us to discuss your bathroom or kitchen tile painting project.