Bo and all,
Payment to subcontractor will be done under these conditions
1. contract agreement with quantity and drawing to show area of work
2. progress of work with drawing for area of work
3. accumulated payment to control not over the budget
Qs and PM,
Clarify before to proceed
1.make sure that the work is in our BOQ if not you need to proceed with extra work
2. compare quantity with BOQ if it's over you need to declare why and if any chances to claim for extra work you could try
Without condition above the payment may delay until it's clear