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Last updated: 8 September 2023
Can you change grout colour?
Thinking about refreshing your bathroom or kitchen? Want to know if changing grout colour is a good idea or whether it’s even possible? Let’s get some expert advice!
Thinking about a bathroom or kitchen refresh? Want to know if changing grout colour is a good idea or whether it’s even possible. Let’s get some expert advice!
How to change grout colour
There are two ways to change grout colour. You can either:
Remove the old grout and replace it with new coloured grout
Dye your existing grout (only possible with light coloured grout)
Both methods are possible with most tile types and grout types. Removing and replacing your existing grout is a better option if your current grout has become damaged or mouldy.
Dying your existing grout is easier, but more limited in terms of results and the types of tiles and grout that it's suitable for.
How to dye existing grout
Before dying your existing grout, you'll need to thoroughly clean it. This can be done with any type of strong bathroom or kitchen cleaner.
Once your grout is clean, a grout colourant can be painted onto the tile joints. Most colourants are a blend of dye and sealant. This ensures that your newly grouted tiles are both aesthetically attractive and waterproof.
When dying grout, it’s important to remember the dye can stain unsealed natural stone tiles. Therefore, dying grout is best used only for porcelain or glazed ceramic tiles.
As mentioned above, it's only possible to dye light coloured grout with a darker colour. It may be possible to dye dark grout in a lighter shade, but this will take multiple coats.
Also, remember that dying grout only changes the colour of the grout. It doesn't fix problems like cracks, missing grout, or mould build up.
How to replace existing grout
Replacing grout is a more time-consuming job than dying grout. All existing grout will need to be carefully removed before you begin.
Using an electric multi-tool or manual tile rake to carefully scrape out the existing grout. Be careful not to damage the surface of the tiles.
Once the old grout is removed, you can apply the new coloured grout using a grout float, sponge and mixing bucket.
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