Kindly help recommend a 'cheap and good' way to repair these cracked floor tiles. Does it cost very much to hack and replace the tiles? Roughly how much does it cost? Is there some 'glue'/ fillers in the hardware stores for DIY to mend cracked tiles? Any tiler expert can advise? Thanks.

Edited September 16, 201115 yr by matrix0405

Professionally done - first of all you need to repair the concrete below, otherwise your new tiles will crack again. If you want to do a DIY repair, you can try using gray colour silicone. Or if you are confident that there is little movement, use grout with a little gray colouring to as to blend with the tiles.