D.D.D.G. Engineering Services holds a Certificate of Authorization from the Professional Engineers Ontario. Our aim is to provide a professional service, dedicated to client satisfaction. D.D.D.G. Engineering Services is a local engineering firm with a reputation for quality of design and service. For the past 19 years, D.D.D.G. Engineering Services has provided electrical and mechanical engineering services for municipal, industrial, commercial and institutional clients including detailed designs for over 1,690,000 square feet of facility floor area.