Most 203k servicers allow you to change contractors if needed, although that would be a last resort to working things out with the existing contractor. So you need to have a conversation with your draw specialist to discuss those options. You might also want to check to see if a contingency reserve was set up in your loan in case you need to go over the original budget for cost overruns or unexpected items. If you have to go with another contractor, there will be paperwork for them to complete to get approved with the servicer. So make sure the new contractor understands that time is of the essence. Good luck. These things can be worked out.