Here is a job I got called out to the other day to price, they want me to rip two tiles out and replace and grout in because the two tiles don't match...!
BUT!! The customer was in for a shock, the shower (bath tap end) wall has 1 shade of white and the bath length wall has a complete different shade of whitey blue! !
the 2 tiles they wanted replacing were the shade of the opposite walls!!
After explaining batch no.'s in brief etc i showed the how bad the tiling had been done!
The company that had done this 'was a reputable company'
