Subcontractor default insurance is a specialized policy that protects general contractors from financial losses when a subcontractor fails to perform their contractual obligations. Unlike a surety bond where a third-party guarantor steps in, SDI is an insurance product purchased by the GC that covers completion costs, corrective work expenses, and delay damages when a subcontractor defaults. For roofing subcontractors, understanding SDI matters because GCs who carry it often have more rigorous prequalification requirements.
When a GC uses SDI instead of requiring performance bonds from subcontractors, they take on the role of managing subcontractor risk internally. The SDI carrier sets the GC's prequalification standards, which typically include minimum financial ratios, insurance requirements, safety metrics (including EMR thresholds), bonding capacity, and reference verification. If you are bidding on a project where the GC carries SDI, expect a thorough prequalification process that examines your financial statements, loss history, and organizational capabilities.
SDI programs can benefit roofing subcontractors by eliminating the need to provide your own performance and payment bonds, which require personal indemnity and tie up bonding capacity. However, the tradeoff is meeting the GC's heightened prequalification standards. If you work with GCs who use SDI programs, maintain clean financial records, keep your EMR below their thresholds, and build a track record of on-time project completion. A strong prequalification profile under SDI programs opens access to large commercial projects that might otherwise require bonding you cannot obtain.