From missing shingles to leaky roofs, gutter repair/installation to vinyl siding, there are many reasons to look for a roofing contractor you can trust. At Ontario Certified Roofing, we’ve earned the trust of our customers through personalized roofing solutions designed to address an issue or deficiency once and for all. Our expertise in the roofing industry puts us ahead of the competition, with certified specialists having decades of hands-on experience. We put quality first in everything we do, and our work speaks for itself, seamlessly serving our clients in Simcoe County, North York Region, and North Durham regions.