Find Construction Contractors You Can Count On in Cornwall, ON

John Gordon Construction delivers expert general contracting services across Eastern Ontario, specializing in industrial, commercial, and institutional projects since 1911. We offer end-to-end solutions from renovations to new construction, supported by certified subcontractors and 24/7 emergency response. With Ontario Building Code certification for smaller designs, we combine century-old expertise with modern project management to ensure quality, integrity, and client satisfaction.