Can you paint bathroom tiles, and how long does it last?

Yes, you can paint bathroom tiles, and on walls and splashbacks that only get splashed it holds up well when the preparation is done properly. Inside a shower or on a floor that gets wet and walked on, painted tiles are a short-term fix. Resene describes painting tiles as an affordable way to update them, and as a practical, temporary solution if a major renovation is planned for later.

How long it lasts depends far less on the paint than on two things: how much water sits on the surface, and how much abrasion it gets. Get those right and it is a reasonable way to buy time before a renovation.

Where do painted tiles actually hold up?

The honest dividing line is between tiles that get wet occasionally and dry quickly, and tiles that are wet every day or take foot traffic.

Location	What the surface goes through	Realistic outcome
Wall tiles away from the shower	steam and the odd splash, dries between uses	the best case; holds up well with a proper primer and a wet-area topcoat
Vanity or basin splashback	regular splashes, soap, wiping	works well if cleaned gently, not scoured
Bath surround above the waterline	splashes and condensation	workable, but watch the edges along the bath where water pools
Inside a shower enclosure	hot water, soap and scrubbing every day	not recommended; expect peeling and lifting at the grout lines
Floor tiles	foot traffic, grit, water on the surface	needs a floor paint system rather than wall paint, and will need recoating as it wears

Resene's MasterStroke guide makes the same point in a different way: it says painted tiles will not have the same performance as the original tiles, and presents painting as a budget-friendly option when you want to change your colour scheme. That is the right expectation to go in with.

Why do painted tiles fail in a shower?

Glazed ceramic is designed to shed everything, which is exactly why paint struggles to grip it. On a dry wall, a good adhesion primer can hold on. In a shower, water is on the film for long periods every day, soap residue builds up, and people scrub. Water tracks in behind the paint at the grout lines and at any chip, and once it gets behind the film it lifts it from the back. There is no primer that turns glaze into a porous surface.

We would rather tell you not to spend money painting a shower than have you pay for something that starts failing in the place you look at every morning. If the shower tiles are the problem, the real options are regrouting and resealing, a wall panel system over the top, or retiling.

What preparation does it need?

Preparation is most of the job. The paint only sticks as well as the surface underneath lets it.

1. Wash the tiles thoroughly with detergent and water, and scrub the grout lines with a small stiff brush. Soap scum and body oils are the main enemy of adhesion.
2. Treat any mould with a moss and mould killer and leave it for the time the label states before rinsing. Painting over live mould just means it grows through the new film.
3. Rinse with clean water to remove all residue, then let everything dry completely. Run the extractor fan or leave the window open.
4. Lightly sand the glaze where the tile allows it to take the shine off. Some tiles are too hard to sand, and Resene's advice for those is to make sure they are very well cleaned instead.
5. Repair any cracked grout and replace failed silicone first. Paint does not fix a leak.
6. Apply an adhesion primer or sealer suited to glossy surfaces. Resene specifies its Waterborne Sureseal for this step.
7. Finish with two coats of a paint made for kitchens and bathrooms. Resene names SpaceCote Low Sheen Kitchen & Bathroom or Lustacryl Kitchen & Bathroom for tiled walls.

Leave the recommended drying time between coats, and then give it longer before the room goes back into full use. Check the product data sheet for recoat and cure times rather than guessing, because a bathroom full of steam slows everything down.

Can you paint the grout as well?

On wall tiles, the primer and paint go over grout and tile together, which gives a single flat colour. If you want the grout lines to stay visible in a contrasting colour, that is fiddly brush work and it shows every wobble. For floors, Resene's system is different: a floor and paving paint on the tiles, with the grout masked and picked out by hand with a fine brush, followed by a waterborne satin glaze over the top as an added layer of protection.

How long does painted tile last?

There is no honest single number, and anyone who gives you one is guessing. What decides it:

• Water contact. A splashback that dries within minutes will outlast a bath edge where water sits.
• Ventilation. A bathroom with a working extractor fan dries faster, grows less mould and is kinder to any painted surface. If paint is already blistering on your ceiling, read our note on why bathroom ceiling paint bubbles before you paint the tiles, because the same moisture problem will hit them too.
• Cleaning. Soft cloths and mild cleaners only. Abrasive pads and strong bathroom sprays wear through painted tile quickly.
• Preparation. Most early failures trace back to soap residue or a skipped primer coat.

Treat painted wall tiles as a finish you will need to touch up and eventually redo. On floors, expect to recoat the high-traffic path well before the edges.

When is it worth doing, and when is it not?

It is worth doing if the tiles are sound, firmly stuck, and simply an ugly colour, and you want to buy time before you can afford a renovation. It is also a sensible move before selling, where the goal is a clean, neutral bathroom in photos.

It is not worth doing if tiles are drummy or loose, the grout is cracked and letting water through, there is a leak behind the wall, or the tiles in question are inside the shower. In those cases paint hides the problem for a while and makes the eventual repair more expensive.

This is a job a careful DIYer can do on a splashback. A whole bathroom of wall tiles is where a painter earns their keep, mainly in the cleaning and priming nobody enjoys. See our bathroom painting in Wellington page for how we handle the rest of the room, including ceilings and wet-area walls.

If you want an honest opinion on whether your tiles are worth painting or are better left for a renovation, get in touch for a free quote and we will tell you straight.