Subcontractors Below is a list of important subcontractor documents and links. To download documents please click on the links below. Master Builders Subcontractor Agreement Download Alexander Construction - Subcontractor Agreement - Special conditions of contract Download Payment Claim Download Variation Submittal Download Subcontractor Site Specific Safety Plan Summary Download Alexanders Online Site Induction Visit Website For more information contact us:Ph. 06 843 9626E. *protected email*