Best Metal Roofing Contractors in Markham

Metal roofing — standing seam and metal shingles — is valued in Markham for its longevity, wind resistance, and ability to shed snow and rain. The 4 contractors below were selected from our full Markham top 10 as the strongest for metal roofing work, ranked by experience, manufacturer certifications, BBB standing, and verified reputation.

Markham sits within the Greater Toronto Area snowbelt, where winters bring repeated freeze-thaw cycles, heavy snow loads, and ice damming along eave edges. Metal roofing — whether standing seam panels or interlocking metal shingles — handles these stresses with considerably less long-term maintenance than asphalt shingles. The ability to shed snow cleanly reduces the structural load on older York Region homes, and a properly installed concealed-fastener system eliminates the gaps that freeze-thaw cycles exploit in exposed-fastener alternatives.

The GTA's wind corridor also plays a role in system selection. Markham experiences periodic high-wind events that travel across Lake Ontario and Lake Simcoe, and metal panels rated for high wind uplift provide meaningful protection that carries into insurance documentation. Local building departments in York Region require permits for full re-roofing regardless of material, and metal installations often require an engineered load assessment when going over existing sheathing — confirming installer familiarity with municipal requirements before signing is worthwhile.

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. There are no paid placements.

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.