Also, many providers jack up rates when you're no longer a new customer.

This is a full rehab - HVAC to floors to Cabinet, etc.

We are redoing our kitchen, and lets say the cost is 60K+ 12K profit/Overhead (20%), includes cabinets, countertops, etc.Why do contractors calculate profit based on total cost including materials.

Nine months went by and the customer came back to me crying that his attorney stopped answering his calls.

I used to be a customer service rep, and I can tell you from experience some reps will go above and beyond. 

Super customer oriented.

I have been spending the last week dealing with lowes and getting cabinets figured out.

New flooring, millwork, counters/cabinets, painting, etc.

However, I don't want to be condescending--I could see that annoying them, a customer trying to tell them how to do their job. 

A custom modular will be about $190/sq ft.