Expert roof installation, repair, and replacement with lifetime warranty. GAF Master Elite® certified roofers serving Ontario for 25+ years.
From new installations to emergency repairs, we're your complete roofing solution.
Complete new roof systems with premium materials
Full tear-off and replacement for aging roofs
Emergency and scheduled repair services
50+ year lifespan with superior durability
Commercial and residential flat roof solutions
Natural wood shake roofing systems
We offer a wide selection of roofing materials to match your style, budget, and performance needs.
From inspection to completion, we make your roofing project smooth and stress-free.
We inspect your roof, check attic ventilation, assess damage, show material samples, and provide a detailed written estimate—all completely free with no obligation.
Choose from our premium roofing options and colors. We handle all permits, order materials from trusted suppliers, and schedule your installation at your convenience.
Our experienced crew removes old shingles, inspects and repairs deck, installs ice/water shield and underlayment, proper venting, then expertly installs your new roofing system.
We conduct thorough quality inspection, complete cleanup with magnetic sweep, walk through the project with you, and ensure you're 100% satisfied with our lifetime warranty protection.
Experience the Custom Contracting difference with GAF Master Elite® certification and lifetime warranty.
Top 3% of roofing contractors in North America
Fully licensed, bonded, and WSIB covered
Lifetime workmanship warranty on all installations
Flexible financing options available (OAC)
Professional in-house team, no subcontractors
We assist with all insurance claim paperwork
3 real photos from our roofing projects
roofing Project 1
roofing Project 2
roofing Project 3
Proudly providing expert roofing services throughout the Greater Toronto and Hamilton areas.
Don't see your area? Contact us to confirm service availability.
Don't just take our word for it. See what homeowners across Ontario say about our roofing services.
"Custom Contracting replaced our roof in just one day! The crew was professional, the cleanup was perfect, and the new roof looks amazing. The lifetime warranty gives us peace of mind. Highly recommend!"
David M.
Burlington, ON
"Excellent experience from quote to completion. They helped us navigate the insurance claim after storm damage and got our roof replaced quickly. The quality is outstanding and the price was very fair."
Patricia L.
Hamilton, ON
"Best roofing company in Ontario! They answered all our questions, offered great material options, and completed the work on schedule. Our home looks brand new and we've already noticed lower energy bills."
Robert K.
Oakville, ON
Get answers to common questions about roofing installation, materials, and costs in Ontario.
A: The average cost for a new roof in Ontario ranges from $5,000 to $18,000 depending on the size of your home, roofing materials chosen, and complexity of the job. Asphalt shingles are the most economical option ($3.50-$5.50 per sq ft), while metal roofing costs more ($8-$14 per sq ft) but lasts significantly longer (50+ years vs 25-30 years). Premium architectural shingles with algae resistance cost $4-$7 per sq ft. We offer free estimates and 0% financing options to make your project affordable.
A: For Ontario's climate with cold winters and hot summers, we recommend architectural asphalt shingles or metal roofing. Architectural shingles handle temperature fluctuations well, resist algae growth, and typically last 25-30 years. Metal roofing excels in snow shedding, energy efficiency, and longevity (50+ years), though it costs more upfront. Both options resist ice dam formation when properly ventilated and meet Ontario Building Code requirements.
A: Most residential roofing projects in Ontario take 1-3 days to complete, depending on the size and complexity of your roof. A typical single-family home (1,500-2,000 sq ft) can often be completed in one day with our experienced crew. Larger homes or complex roof designs with multiple valleys, dormers, or steep pitches may take 2-3 days. Weather conditions can affect timing, and we work efficiently while maintaining the highest quality standards.
A: Yes, roofing work in Ontario typically requires a building permit from your local municipality. Requirements vary by city—some require permits for all roof replacements, while others only for structural changes. The good news? We handle all permit applications for you as part of our service. This ensures your project meets all Ontario Building Code requirements and local bylaws. Permits typically take 5-10 business days to process.
A: We provide a lifetime written workmanship warranty on all our roofing installations. Additionally, materials come with manufacturer warranties: architectural shingles typically have 25-30 year warranties, designer shingles offer 50-year warranties, and metal roofing includes 40-50 year warranties. Our warranty is fully transferable if you sell your home, adding value to your property. We're GAF Master Elite® certified, providing access to enhanced warranty coverage.
A: Absolutely! We work with insurance companies daily and can assist with your insurance claim for storm damage, wind damage, or hail damage. We'll document the damage with photos, provide detailed estimates with line-item pricing, and work directly with your insurance adjuster to ensure you get fair coverage. Many Ontario homeowners don't realize their damage is covered – let us provide a free inspection to assess potential insurance coverage.
A: The best time to replace a roof in Ontario is during spring (May-June) or early fall (September-October). These seasons offer mild weather, which ensures optimal working conditions and better material performance. Asphalt shingles seal best in moderate temperatures. We can install roofs year-round with proper techniques, but avoid extreme heat (over 30°C) and cold (below 0°C) when possible for optimal results.
A: You likely need a full replacement if your roof is 20+ years old, has widespread damage, multiple leaks, curling or missing shingles across large areas, or sagging sections. Repairs work well for isolated damage, a few missing shingles, minor leaks, or storm damage in specific areas. Our free inspection provides honest assessment—we'll recommend repairs when appropriate, not push unnecessary replacements. We can inspect your attic for water damage, check ventilation, and examine shingles up close.
A: Our complete roofing installation includes: removing old shingles and disposing of debris, inspecting and repairing roof deck if needed, installing ice and water shield in valleys and eaves (Ontario code requirement), applying synthetic underlayment, installing new drip edge and flashing, proper ridge venting for attic ventilation, installing your choice of shingles, complete cleanup with magnetic sweeps, and final inspection. We also offer gutter and eavestrough upgrades during installation.
A: Yes! We offer flexible financing options including 0% interest for 12 months (OAC) and extended payment plans up to 84 months. Our financing makes quality roofing affordable with no hidden fees. Apply during your free estimate appointment and get instant approval in many cases. We also accept all major credit cards and can work with your insurance company directly. Don't let budget concerns delay necessary roof protection—ask about our current financing promotions.
Have more questions? We're here to help!
Contact Us TodayFor over 25 years, Custom Contracting has been Ontario's premier choice for professional roofing services. As a GAF Master Elite® certified contractor (top 3% in North America), we deliver exceptional roofing installation, repair, and replacement services backed by industry-leading warranties and proven expertise.
Our expert team understands Ontario's unique climate challenges—from harsh winters with ice dams to summer storms and high winds. We use premium materials specifically designed for Canadian weather, including architectural shingles with algae resistance, synthetic underlayment, and proper ice and water shield protection. Every installation meets or exceeds Ontario Building Code requirements.
Whether you need emergency roof repairs, complete roof replacement, or new construction roofing, we handle projects of all sizes with the same level of professionalism. Our lifetime workmanship warranty and flexible financing options make it easy to invest in your home's protection. We also specialize in insurance claim assistance, working directly with adjusters to ensure you get fair coverage.
Serving Burlington, Hamilton, Oakville, Mississauga, Kitchener-Waterloo, and communities throughout Southwestern Ontario, Custom Contracting is your local roofing expert. Contact us today for a free roof inspection and detailed estimate. Experience the difference of working with Ontario's most trusted roofing contractor—backed by thousands of 5-star reviews and a proven track record of excellence.
45 Worthington Dr Unit H
Brantford, ON N3T 5M1
Free roof inspections
Same-day emergency repairs
Flexible scheduling
Don't miss this 60% OFF offer! Contact us today.
📍 Visit Us
45 Worthington Dr Unit H
Brantford, ON N3T 5M1
✉️ Email Us
infor@customcontracting.ca