Radiators don’t usually get much love - but then, we are Toasty, and to us radiators are anything but wallflowers. They’re the main event. The sparkle. The little detail that quietly steals the show. So when the subject of how to paint a radiator comes up, trust us - we have a lot to say.
Painting a radiator is one of the easiest, cheapest, and most satisfying ways to warm up a space in more ways than one. With the right tools and a bit of know-how, it becomes a quick, low-stress project with seriously high impact. If yours is heating evenly, without cold spots, and doing what it should, a fresh coat could be the finishing touch your room’s been missing - whether that’s a subtle lift or a full, colour-drenched glow. Consider this your gentle nudge to grab a brush, turn up the creativity, and give your radiator the attention it deserves..
Can I paint my radiator?
Whether you have a horizontal or vertical radiator, painting a radiator is actually fairly easy - and cheap. You just need the right stuff to di it!
What colours can I paint my radiator?
Options are limitless here, radiators can be painted whatever colour you like as long as you use the correct type of paint. Black and white are very common colours but modern radiators come in all manner of chapes, sizes and colours.
Do I need to remove my radiator from the wall before painting?
Ideally, yes. But fear not if you just can't be bothered, because you don't have to. Since it's not a physical requirement, it just comes down to what is easier. If you're handy and have the tools and space, then removing your radiator from the wall won't be much of an issue. But if you've never done it, don't have the tools, and have no space, then having the mostly-hidden side of your radiator unpainted might not be such a bad trade-off.
How do I paint the back of the radiator if I’m not removing it?
You’ve got two options here. The first is simple: you don’t. It won’t be on show, so you can usually get away without painting it at all. But if you won’t sleep easy knowing the back doesn’t match the front, there is a solution - with a bit of skill and the right brush. Ask your local DIY store for the brush that will do it and you're good to go!
Which paint should I use on my radiator?
Normal household paint isn’t recommended for radiators. While it can work if you’ve used the right undercoat and are painting the correct surface, specialist radiator paint is usually the better choice. Radiators constantly heat up and cool down, which puts paint under stress. Over time, regular paint can weaken, crack as the metal expands and contracts, and trap dust and grime that literally bakes on - leading to discolouring and a finish that doesn’t last.
How to paint a radiator with normal, everyday paint — anyway
You're an independent spirit, so if you're set upon using normal paint then just apply a 'clear radiator overcoat' to be able to use standard emulsion. We only recommend this for cast iron and steel radiators, though.
You’ll need to prime your radiator first. Buy either a specialist radiator primer or metal primer to give your paint a proper surface to bond to, and this will also prevent rust with its anti-corrosive properties.
Ideally, paint your radiator with heat-resistant paint
What you should use when painting any radiator is a heat-resistant radiator paint. You can buy it in the form of the usual paint tins, or in aerosol form for spray-painting it on. We'll cover both in this guide.
Can I spray paint my radiator?
Yep, with the right heat-resistant radiator spray-paint. We would recommend removing your radiator first before painting or spraying to minimise any accidents.
Can I paint my radiator pipes?
Yes you can also paint your radiator pipes. Just make sure you're still using the appropriate paint and preparation steps we mentioned above.
What you’ll need to paint your radiator:
- Stuff to clean your radiator with: read this cleaning article
- Old sheets or newspaper or anything to protect your floor from paint
- Sandpaper
- Radiator paint (tinned or spray) in your choice of colour
- Radiator primer
- Various paint brushes (If using paintbrushes. one will do, but a pack will be more useful)
- (Optional) if you're painting your pipes, or not taking your radiator off the wall, then put a large sheet of spare cardboard (or similar) between the radiator and the wall. They're usually really close together.
How to paint a radiator
Painting a radiator is easier than you might think. Follow these steps to get a smooth finish that lasts.
1. Turn your heating off and ventilate the room
So obvious that it's easy to forget. Wait until it's stone cold so your paint doesn't get drippy (which can happen even if the room is too hot, so if your radiator is warm then it's a problem).
And also ensure your room is well-ventilated when you begin to paint.
2. Clean around the radiator
Hoover up around the radiator to clear away loose dust, and anything that might get disturbed and become stick in the paint. Then lay whatever you've got to hand to catch dripping and splashing paint. No matter how careful you are, no matter if you're the most careful person you've ever known, paint is going to splash on the most expensive object within 2 metres. Guaranteed. So put some sheets down and clear the space.
3. Clean the radiator and sand down any lumps of paint or rust
Follow this cleaning guide to get your radiator looking spotless and then sand it down using sandpaper. The goal is to remove any lumps of paint, rust and anything that will make your coats of paint uneven.
4. Prime your radiator
Prime your radiator with an even coat. This will create a fresh surface for your paint to bond to. It's a quick thing to do that will ensure you get the best results possible. It will also stop and prior rust spots with anti-corrosive properties and protect against future rust problems. If your radiator is bare, or your pipes are bare, then this is an absolute must. Well, either way it's a must.
5. Paint the radiator
Carefully brush (or spray) your paint on, taking care to ensure a nice even coat all over. Make sure to paint in the same direction as any grooves and avoid 'overloading' your paint brush, which just means having too much paint on it; which results in dripping and lumps.
6. Allow to dry, then apply another coat if needed
Let the paint dry fully, then take a look. If the finish isn’t quite there yet, a second coat should do the trick.
So there you have it, you now know how to paint a radiator and how to do it properly.
Since you clearly care about your home, why not double check that your radiators don't need a power flush.
