SBC specialises in timber and concrete bridge repairs. SBC has been the approved contractor for all of Transit New Zealand's (Northland) bridge repairs over the last five years. SBC has also undertaken bridge repairs for the Whangarei District Council for four out of the last five years.

Although concrete bridge repairs are SBC's speciality, the company also specialises in timber bridge construction, an attribute that was instrumental in SBC being awarded the Whangarei District Council contract in 2005 for the maintenance of its coastal structures and walkways.