Building ContractorsDesRoches Seymour Construction is a provider of Building Contractors products services in Middleton Prince Edward Island, Canada. Find DesRoches Seymour Construction on Prince Edward Islands most accurate and fastest business directory. Prince Edward Island Business Directory Desroches Seymour ConstructionFind Charlottetown, Summerside, Stratford, Montague & Cornwall business listings here! more... See more text