How many metal roofing contractors are in Markham?
Our directory lists 4 independently verified metal roofing contractors serving Markham, Ontario, ranked by experience, certifications and reputation. Cherry & Clark Roofing is ranked #1.
How do I choose a metal roofing roofer in Markham?
Confirm licensing and insurance for Ontario, ask for metal roofing project references in Markham, get multiple written quotes, and check each contractor's BBB standing. Every company listed here has been independently researched.
Does York Region require a permit for a metal roof installation in Markham?
Yes. York Region municipalities including Markham require a building permit for any full roof replacement or new-material installation. The permit process typically involves an inspection of the completed installation. Metal roofing over existing sheathing may also trigger a structural review to confirm the deck can support the additional fastener system. Confirm permit requirements with the City of Markham Building Department before work begins.
Will a metal roof handle the ice and snow loads typical of GTA winters?
Metal roofing is well suited to Markham's winter conditions. Standing seam and interlocking metal shingle systems are designed to bear heavy snow loads without the uplift risk associated with tab shingles in freeze-thaw cycles. The low-friction metal surface encourages snow shedding, which reduces cumulative dead load on the structure. Snow guards can be installed at eaves to control where snow releases and protect landscaping or walkways below.
Can I put a metal roof over my existing asphalt shingles to avoid tear-off costs?
In some cases, yes — most jurisdictions allow one layer of new roofing over an existing single layer of asphalt shingles, provided the sheathing is sound and load calculations permit it. Markham homes built in the 1980s through 2000s typically have OSB or plywood decks in serviceable condition, but a pre-installation inspection is recommended. Installing over existing shingles eliminates tear-off landfill waste and can reduce project time significantly.