SEM Construction

SEM Construction is a London, Ontario, general contractor providing end-to-end support for commercial, healthcare, and institutional building projects. From early planning and design coordination through construction and final completion, the team brings together architects, designers, engineers, and experienced tradespeople to help keep projects moving smoothly. Its work includes medical offices, hospital renovations, institutional expansions and upgrades, executive offices, and the adaptation of historic buildings. With expertise spanning mechanical systems, electrical work, custom carpentry, flooring, and painting, SEM Construction offers clients a coordinated approach to complex renovations and new construction.