Missing grout in floor tiles

masterK

I was wondering if anybody knew of a product to fill in gaps in grout? I've attached an image of it. Or is it better to get the whole floor regrouted?

sligojoek

I'd use more grout.

I'd find out why it came out in the first place. Is it on a timber floor? There could have been movement.

masterK

Yes, it's a timber floor. Most of it came out when vacuuming

sligojoek

Has it been recently done? Is it just there or is it all over the floor.

masterK

It was done about 2 years ago, it's just that area and one other also area

sligojoek

If that's all I'd chance putting in another bit of grout. Make sure it's flexible.

dodzy

masterK wrote: »

I was wondering if anybody knew of a product to fill in gaps in grout? I've attached an image of it. Or is it better to get the whole floor regrouted?

May have just been light on initial application. Get some grey grout and apply liberally with a flexible filling knife/scraper, working well into the gaps in all directions. No harm hoovering the grout lines before filling to ensure any loose bits are removed. Wipe off excess with damp sponge and allow to dry, then buff to a shine.

sligojoek

Another thing that could have caused it is if there was water spilled in the joint before grouting.