Can i regrout over old grout?

[PrawnDumplings]

My decorator has used a white grout when I didn't want one. Can i regrout without removing it all?

You'll need to scrape away the top layer at least. A bathroom prone to damp means I have to regrout the shower every year, so I just scrape about half way down. It doesnt usually take too long.

What do you scrape with?
Is it easy to refill?

You can buy a specific grout removal tool, but i recently used one of those L shaped tools for deweeding inbetween bricks. Its easy to regrout over the top.

You can buy a grout pen from Amazon, buy one in the colour you want and go over it.

I've tried them and they dont last.

Oh mine lasted really well, there’s probably loads of different brands but unfortunately I did mine so long ago I have no idea which one I bought - maybe worth checking out reviews?