Maine  |  Construction Law

I am having my house built in Maine and my contractor has breeched the contract. First floor finished was based on a six month timeline that expired on June 30, 2009. The house is not weather tight yet and we're still waiting on three windows. He withdrew 85% of our construction loan and doesn't return calls, emails, text messages. The bank is on him weekly and though we have seen minimal progress ( sheetrock and insulation delivered) it doesn't seem to cut the mustard anymore.

What are my options at this point?