On Centre Design Build is a general contractor and construction management firm headquartered in Vaughan. On Centre Design Build is a company that specializes in the design and construction of residential homes, commercial construction and barrier-free locations. Our clients expect THE ABSOLUTE BEST ... It’s what we strive for in every project; no matter how big or small. On Centre is a team of dynamic, collaborative and creative Project Managers with a network of skilled craftsmen to ensure our services are tailored to meet each client’s unique construction needs. We provide an environment that engages our people, encourages strong work ethics, fosters growth and development, and supports the communities in which we work.