Based on some of the tiling jobs we've seen here, I might require a vision test.

Who is actually going to be doing my job? How much experience does he or she have. Have you ever set tile like this? Etc...

Our tile contractor was supposedly the best. But it wasnt him. He sent some young guys who had very limited experience who messed up the edges on the kitchen back splash. Couldn't really be fixed. Among other issues. They did the formica in the laundry room too. Terrible job. That they fixed, but really it was an amateurish job all around.

I would clearly define the patterns and looks you want. Also you will want to know how they install their substrate.

If they are building a tile shower/s, I would find out what kind of materials they use and if they actually know how to build a shower that won't leak. Easier said than done.

I would also ask this question on the bath forum.

I never know where to ask questions about tile. Could go kitchen, could go flooring, could go bathroom.

What this site needs is a dedicated tile forum because there are a lot of things very specific to tile (like grout, installation, materials, etc.) that don't necessarily fit into any of the other topics.

Lots of good talkers out there!!

First thing: see their past job(s).

Second thing: spell out the specified installation method as per the Ceramic Tile Council of America Handbook or similar authorities.

*****

jn3344 correctly cites the eternal problem of hiring a company as opposed to an individual.

uscpsycho, I agree with you that they need a tile forum.

Thank you Geoffrey. That is an excellent suggestion!