HI,
I hope to soon gut reno a kitchen into a bath and put a doorway into a unit I just purchased next to my existing apartment

I have received one proposal for the work but have a questIon.
The general contractor has listed all the work and items supplied but only given one figure for cost. For example plumbing and install
fixtures for 15,000
Can I ask to have each section broken down showing hours of work expected and hourly rate and cost of supplies.
I know there is a mark up but, that is understood using his service and would be on top.
I mean how long should it take two men to hook up plumbing in a 10 foot space from existing risers?

Or is this not the way it is done?

I do wish to know how long to expect the plumber to work on the bath.
At $40 an hour even with two men the cost of $15,000 would mean they are working for almost 2 weeks with the rest supplies. Can that be correct?

Please help! I Need advice !!! Thanks so much