Stephen Raynard
Hi Mandy , It is not good practice the way the tiling has been done By the sound of it . It is always best to ensure that all walls are flat and level Before any tiling is done and that time spent doing that is time well spent later on . Not sure on wether you got a company to carry out the full install or different companies to do different jobs . This would complicate it as they would just blame each other . The tiler would simply blame the who ever was supposed to do the initial rip out and preparation etc . Bottom line , my advice would be to remove all tiles and ensure walls are prepped correctly . Regardless of cost it would give peace of mind that the job has been done correctly . Hope this helps