What to do about a tile floor that with globs of thinset

Question

8 months after my general contractors had laid out the new tile on the bathroom floor, I noticed one of my large format tiles starting to wobble. It got progressively worse so I removed it and discovered that the thinset had not been laid out with an even trowel field. It was literally 5 globs on each corner and the middle.

It looks like the the same treatment applies to the rest of the floor. Handyman came in and helped re-set the one tile, but I constantly hear bending and bumping on the floor. Nightmare? Not sure if I should ask them to come back or sue if they don't? Does it ever make sense to apply globs of thinset or were they just inexperienced and or lazy?

Answer 1

I've never seen tile installed this way. I've seen installers glob it down, but then trowel it out. Tile needs to be installed on a flat, sound surface or it will "bend" and will break or loosen over time. what type of guarantees did you get from them? I'd put them on notice and get them out there when the next tile pops off.

Answer 2

Bounce a golf ball all across your floor. You will hear the hollow spots. If your bad tile was not an exception, give the contractor a chance to fix it. He may have been screwed by a bad subcontractor. If he doesn't, get ready to go to the state license board, and maybe small claims court.