Serving the Durham region, Markham and Scarborough since 1970, Canadian Roofing Systems offers honest and reliable services for all your roofing needs. We are a Canadian family owned and operated business with skilled employees and a long track record of success throughout Port Perry, Durham, and York region. With full time year round service, Canadian Roofing Systems provides the highest quality roofing services, including roof dock protection, roof repair, waterproof leak barriers and attic ventilation.