when the work is delay they workmanship is high then they will run away from project. better in the future dont trust any one ask deposit 80%.

Pay 10 or 20 % after he start work day 1 or day 2 only do not bother hear any kind story from them no money workers ask money, ask him get from his own pocket if the cotractor said no money do not take him this kind person is very high risk.

Only pay them after work completed