About Us Coastructural Engineering Ltd. provides structural engineering services for both new construction and renovations on the British Columbia Sunshine Coast. It is a partnership between Dean Dugas P.Eng and Lyle Seeton A.Sc.T. created shortly after they met in November 2011. Services Coastructural Engineering provides engineered design solutions in a variety of materials and forms. We have extensive experience in residential and commercial projects. About Us A company built on providing solid professional engineering services. Services Engineering services for both residential and commercial projects. Contact Us Contact us to discuss your unique project. Coastructural Engineering Ltd.