10 Best Roofing Contractors in Markham 2026

The outer layer matters, but so do underlayments, fasteners, flashing details, and proper attic ventilation. We install and repair roofing systems designed to manage wind, heavy rain, snow loads, and freeze-thaw cycles. Every roofing project has its own requirements, from a simple repair to a major upgrade. Roof Pro Plus supports a wide range of work, from straightforward repairs to complete roof installations. We also look beyond the surface, because recurring problems often start with flashing, ventilation, and moisture control. That approach helps prevent repeat calls and reduces the risk of costly repairs down the road.
Chimney repair and re-flashing services eliminate mortar joint gaps and roof transition leaks. Leaking roof repair, correcting chimney flashing gaps, skylight perimeter failure, valley wear, and ice dam intrusion. We provide canada roof complimentary drone-assisted roof inspections for all Markham properties. Our detailed report includes 4K aerial photos and a written assessment of your roof’s condition, with honest recommendations. We had our roof replaced and the eves trough replaced the quality of there work is exceptional. They showed up when they promised to and didn’t foul around got right work and finished the job when they said they would.

All their services are competitively priced, and they provide educational information as well. They use the highest-quality materials to withstand harsh weather conditions and the elements. They also provide a 10-year written warranty and a 25-year to lifetime product warranty. RonOvations provides complete residential andcommercial roofing solutions built to stand up to Ontario weather , from harsh winters and chinookfreeze-thaw cycles to summer hail and storm damage.
Expert flat roof repair services in Toronto and the GTA, addressing leaks, membrane wear, and surface damage to ensure the long-lasting roof performance and protection. Whether you need help with a leaking roof, storm damage repairs, missing shingles, or a complete roofing replacement, we work efficiently to protect your property and restore your peace of mind. Markham is a vibrant city within York Region, known for Unionville’s heritage homes, modern Markham Centre condos, and expansive family homes in Cornell and Berczy. Our experienced roofers deliver craftsmanship tailored to Markham’s unique landscape and eastern GTA’s variable weather patterns with sudden temperature drops and ice storms. If you are dealing with an active leak, noticed missing shingle pieces on your lawn, or want an honest opinion on the age and health of your current system, D’Angelo & Sons is widely recognized as the best roofing company for the job.
Professional roofing services in Markham are built for York Region conditions. We handle roof repair, replacement, flat roofing, metal roofing, skylights, gutters, ventilation, and emergency roofing. Because Markham's climate is so demanding, choosing an experienced local contractor matters more here  than it might in a milder region. A roofer who knows the area will specify a continuous ice-and-water shield membrane along eaves and valleys, balanced attic ventilation, and adequate insulation — the details that actually prevent ice dams and winter leaks. Local, established companies are also easier to hold accountable on workmanship warranties and are more likely to honour them years down the road. Trudel & Sons Roofing is a long-established family roofer serving Markham, Richmond Hill, and Southern Ontario, with more than 35 years in business.

As trusted roofing contractors, we reject temporary fixes and superficial patches. Preventing roofing problems is the key to avoiding major repairs later, or a premature complete roof replacement. Roof Pro Plus has been serving Markham for years, providing roof repairs and roof replacement services when people need them most. We provide emergency roof repair across Markham and  York Region for storm damage, wind damage, hail, and active leaks.
Several top Markham roofers, including Cherry & Clark (GAF Master Elite), Guildwood (IKO/CertainTeed/BP), and Unique Roofing (GAF/CertainTeed), hold these designations. Before freezing weather hits Ontario, clear your gutters and downspouts of all fallen leaves and twigs. Blocked drainage channels cause water to back up under the bottom edge of your shingles, creating massive ice dams during winter freeze-thaw cycles. Ensure your soffit intakes are completely unblocked to allow continuous air movement through your attic space. Dark stains on upper ceilings, damp structural beams, or a regular buildup of winter attic frost usually point to poor attic ventilation underneath the roof deck.

When hiring a roofing contractor in Markham, verify their credentials before signing. Check for WSIB (Workplace Safety and Insurance Board) clearance at wsib.ca, confirm liability insurance coverage of $2 million or more, and ask for references from recent projects in Markham or nearby communities. Licensed, insured, and Ontario Building Code compliant contractors protect your investment and your property.
Whether you need roof repair, roof replacement, emergency roofing support, or a professional opinion about your current roof, RonOvations is ready to help. Contact our team today to request a quote or speak with a local roofing professional. The Roof Technician, a leading Roofing Company Toronto, has provided expert roofing services since 2005. With a team of experienced roofers, we have been providing high-quality, fast and affordable roofing services & skylights. For Markham’s climate with eastern GTA’s variable weather patterns with sudden temperature drops and ice storms, we recommend CertainTeed Landmark PRO or NorthGate SBS-modified shingles with enhanced impact and wind resistance. These materials are specifically rated for York Region’s conditions.
We follow a structured inspection-first approach across Markham residential and commercial properties. Flat roof waterproofing protects membrane seams, low-slope transitions, and commercial roof penetrations from moisture migration. Ontario homeowner policies typically cover sudden storm damage. We help Markham homeowners with the insurance claim process, including providing documentation and working directly with your adjuster. Flat and low-slope surfaces should be checked regularly for ponding water, accumulating leaves, or blistering membrane seams. Because rainwater cannot run off a flat section naturally, a single cracked seam or an unsealed edge will quickly let water penetrate the deck panels, causing hidden rot.