3 Best Roofing Contractors in Markham, ON Recommendations

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.
Roofing systems here must perform under freeze–thaw cycles, mature tree canopy debris, snow load accumulation, and wind-driven rain common in open subdivision layouts. Jacky  and his crew did an awesome job on our roof markham roofing replacement and taking out the sag from our 60 year old garage roof. The company is professional, efficient, honest, and did a first class job and clean up. We would definitely recommend C Plus Roofing to our friends and family. Get your business in front of local homeowners actively searching for roofing services.

Our certified Toronto roofers provide expert roof repair, flat roofing systems, shingles replacement, siding and soffit installation, and eavestrough replacement for both residential and commercial roofing services. Roofing is a Markham-based contractor serving the Greater Toronto Area that is BBB accredited with an A+ rating (accredited since 2023). Whether you need roof repair, roof replacement, flat roofing, metal roofing, skylight installation, gutter repair, or emergency roofing services, High Skillz Roofing is ready to help. Unique Roofing provides roof repair, roof replacement, skylight installation, and seamless gutter services for homeowners throughout Markham and York Region, with over 20 years in business. The company is a GAF Certified roofing contractor, a CertainTeed Master Craftsman, and a VELUX-certified skylight installer, and it also offers roof inspections, maintenance, and storm-damage repairs. Cherry & Clark Roofing is a family-owned GTA roofer that has operated since its first roof repair in 1972, making it one of the longest-running contractors on this list.
Reliable eavestrough and downspout replacement services in Toronto and the GTA, designed to improve drainage, prevent water damage, and protect your home’s foundation. Over 25 Years Of Experience We are a trusted and reliable local roofing company in Toronto. Homeowners across Markham and York Region choose RonOvations for quality workmanship, honest pricing, and reliable communication. Our reputation is built on doing the job right the first time, backed by quality materials and clear warranties. We provide roofing services across Thornhill, including postal code areas L3T, L4J, and L4K.
Learn more about this trade and its industry standards on Wikipedia. BBB operates in Canada, and several Markham-area roofers carry A+ accreditation (for example Trudel & Sons, C Plus Roofing, Bros. Roofing, and Star Moon Roofing). Cross-reference the BBB  profile with reviews on HomeStars and Google, and favour established companies with verifiable local job history over door-to-door solicitors offering pressure-sale 'today only' deals. Markham features a vast mix of architectural layouts, from dense historic streets to sprawling modern residential pockets. Because access, tree cover, and structural slope vary wildly by neighborhood, we customize our installation strategies to match the specific demands of your immediate environment.

Our crews respond quickly to secure open zones, replace missing shingles, or apply specialized roof sealant to leaking vents. Regular gutter cleaning and minor tune-ups can address popped nails, loose step flashing, and blocked eaves before a minor weak point turns into a major interior emergency. D’Angelo & Sons handles complete residential roofing Markham projects alongside detailed exterior maintenance.
The performance of your home relies heavily on the quality of the raw materials attached to your structural walls and deck. D’Angelo & Sons partners with top-tier global manufacturers, including GAF, Owens Corning, CertainTeed, IKO, and Velux, to ensure every component used on your house meets strict durability metrics. Still, most people underestimate the risks a failing roof could pose to their home or business. From plummeting property values to serious health risks, roofing issues lead to a host of serious problems.

“Guildwood Roofing is a reputable roofing company that has been operating for over fifteen years. Their professionals are fully licensed and insured for your peace of mind. Their roofers have the skills and experience to handle any roofing project. They work around your time frame, budget, and schedule to complete their work according to your specifications. Guildwood Roofing provides high-quality roofing products and services to protect your family and valuables from roof damage.
Gutter systems designed to manage heavy rainfall and leaf accumulation are common in Unionville and Greensborough. We design, print, and deliver via Canada Post Neighbourhood Mail™. Used by top-rated Roofing contractors across Ontario to get more customers. NFC tap-to-review cards let customers leave a Google review in one tap — no app, no searching. Start with our roof cost guide or see how we rank Markham roofers.
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.