Dugmore & Duncan has experienced trained locksmiths on staff to help design or maintain a master-key system. One misplaced master-key can make your expensive access control product worthless. Let us help create a master-key system designed to work with todays access control products. Dugmore & Duncan can also help you enact a key control policy to avoid expensive rekeying in the future. There are many restricted or patented key systems available that will prevent unauthorized duplication of keys and protect against forced entry.