Question on dealing with contractors

[Wash. state Desk Jet]

3. I don't think he forgot anything.

I think he elevated his bid because he figures you will go for it.

Nobody is off by a thousand or more.

Nobody. It might just be what you call bait & trap. when one works on time and materials on a contract bid ,one also must know how to estimate time and materials in and including the unforeseen -,experience is how that plays out. either there is a lack of that or he's baiting ya.

I could be wrong ,but somehow I don't think so.

Sometimes slippery contractors use the unforeseen factor to raise the bid up into the sky-bid low to get the job than raise the bid -,the unforeseen-that which one cannot bit across is the avenue they use to elevate the cost.

I think you better stop with that befor it goes too far. If you are committed to the shower floor than stop with further bids until it is done than bring in other contractors to bid on the rest.
Or tell him to get it right or just get.

Look over your contract agreement in legal terms.