London Eco Metal Ottawa Metal Roofing Division is a metal roofing supplier and installer, serving Ottawa and the surrounding areas. We take pride in our state of the art metal roofing and steel roofing products. With our 55 years years warranty, you never need to worry about re-roofing your house. London Eco-Metal Manufacturing, a family-owned and operated company, is an industry leading manufacturer of affordable, quality steel and aluminum roofing for the environmentally conscious consumer.