Expert roofing solutions designed for Bowmanville's unique Southern Ontario climate patterns and 100cm annual snowfall. Our local team understands the specific challenges of protecting both heritage homes in the historic downtown and modern residences throughout our growing community.
Lifetime Warranty
Workmanship Guaranteed
24/7 Emergency
Rapid Response Teams
0% Financing
Flexible Payment Plans
Serving Bowmanville for 8 years, our team has completed 1,200 roofing projects across the Southern Ontario. We understand Bowmanville's unique climate challenges, building codes, and architectural styles.
Bowmanville's diverse architecture, from historic Downtown gems to contemporary North End developments, requires specialized roofing expertise. Our solutions are engineered to handle the region's heavy 100cm annual snowfall, while preserving the distinct character of each neighborhood. From the heritage properties of the South End to the growing communities of the East Side and West End, we deliver roofing systems that withstand Southern Ontario's freeze-thaw cycles and protect against ice dam formation.
Choose from our comprehensive range of roofing solutions, each engineered for Ontario's extreme weather conditions and backed by industry-leading warranties.

Preserving Bowmanville's Historic Character with Modern Protection
Engineered specifically for Bowmanville's historic downtown and residential areas, these shingles combine traditional aesthetics with advanced weather resistance. Our exclusive design handles Southern Ontario's harsh winters while maintaining the authentic look of heritage properties.
Enhanced ice barrier system for 100cm annual snowfall
Wind-resistant up to 130km/h for lake effect conditions
Historic color palettes matching Downtown architecture
Double-layer protection against winter ice damming
Heat-reflecting granules for summer temperature control
Advanced drainage channels for spring melt management
Available Colors:
Starting from $18,563 - $24,132 (avg 2,000 sq.ft roof)
* Pricing includes complete tear-off, disposal, deck inspection, underlayment, ventilation, and warranty registration. Exact pricing depends on roof size, pitch, and accessibility.
Historic Downtown homes, Heritage properties, Traditional South End residences
Schedule your free roof inspection online or contact us for a detailed proposal with material samples.
A quality roof is more than just shingles. Learn about the critical components that protect your Bowmanville home from Ontario's extreme weather.

3D Exploded View: See every layer of a complete roofing system
Engineered 5/8" deck panels rated for Bowmanville's heavy snow loads, featuring enhanced structural support for 100cm annual snowfall accumulation. Includes specialized fastening patterns for local wind conditions.
Premium ice barrier system designed for Bowmanville's freeze-thaw cycles, providing 6 feet of protection at eaves and valleys. Prevents ice dam formation during harsh Ontario winters.
Synthetic underlayment with advanced moisture control specifically rated for Bowmanville's humidity levels and precipitation patterns. Features enhanced grip surface for safer installation.
High-wind resistant starter strips rated for Bowmanville's lake effect winds and winter storms. Provides crucial first-line defense against wind uplift along eaves and rakes.
Impact-resistant architectural shingles designed for Southern Ontario weather extremes. Features enhanced granule adhesion for Bowmanville's freeze-thaw cycles and UV exposure.
Ventilated ridge cap system optimized for Bowmanville's seasonal temperature variations. Promotes proper attic airflow while preventing snow infiltration.
Balanced ventilation system designed for Bowmanville's temperature range of -20°C to +30°C. Includes enhanced intake vents and ridge ventilation for maximum efficiency.
Heavy-gauge aluminum flashing with extra-wide valleys for Bowmanville's snow melt patterns. Includes specialized ice dam prevention details at all roof penetrations.



Every roof replacement follows our proven process designed to protect your property and deliver lasting results.

3D Cross-Section: Complete roofing system showing all protective layers
Our team begins with a thorough inspection of your Bowmanville property, adhering to local building codes and Municipality of Clarington requirements. We assess structural integrity, obtain necessary permits, and create a detailed project timeline considering seasonal weather patterns.
We coordinate material delivery to your Bowmanville location, whether you're in historic downtown, Bowmanville East, West Park, or newer developments. Our trucks are equipped to navigate local streets while protecting materials from Lake Ontario's moisture.
During tear-off, we monitor Bowmanville's weather forecasts closely, especially during spring and fall transitions. Our team ensures proper containment of old materials and inspects decking for any water damage common in Southern Ontario's climate.
Given Bowmanville's significant winter snowfall and freeze-thaw cycles, we install premium ice and water shield extending 6 feet beyond the heated wall line. Special attention is paid to valleys and eaves where ice dams commonly form.
We use high-wind rated shingles suitable for Bowmanville's lakefront weather patterns. Installation techniques account for prevailing winds from Lake Ontario and include additional securing methods for areas exposed to stronger gusts.
Our ventilation system is designed specifically for Bowmanville's humidity levels and temperature fluctuations. We install ridge vents and soffit systems that optimize airflow year-round, preventing moisture buildup in attic spaces.
Final inspection ensures compliance with Clarington Building Department standards and our own quality benchmarks. We verify all flashing, ventilation, and drainage systems are optimized for Bowmanville's unique climate conditions.
From lake-effect snow to summer heat waves, Bowmanville roofs face unique challenges. Here's how we engineer protection.

Balanced attic ventilation prevents ice dams, extends roof life, and reduces energy costs
The Challenge:
Bowmanville experiences significant snowfall averaging 100cm annually, with freeze-thaw cycles creating perfect conditions for ice dam formation. Lake effect snow and fluctuating winter temperatures increase the risk of ice buildup along roof edges.
Our Solution:
We implement a comprehensive ice dam prevention system including enhanced insulation, proper attic ventilation, and premium ice and water shield extending well beyond standard requirements. Heat trace systems are installed in vulnerable areas.
The Challenge:
Proximity to Lake Ontario exposes Bowmanville homes to strong wind patterns, particularly during spring and fall storms. Gusts can exceed 70km/h, risking shingle damage and lifting, especially in exposed areas.
Our Solution:
We utilize high-wind rated shingles with enhanced nailing patterns and starter strips. Additional securing methods are employed at edges and corners, with special attention to areas facing prevailing winds from the lake.
The Challenge:
Bowmanville faces temperature extremes from -20°C in winter to 30°C in summer. These dramatic fluctuations cause thermal shock to roofing materials and can accelerate wear on traditional installations.
Our Solution:
Our installations use temperature-resistant materials designed for extreme Canadian weather. We implement proper attic insulation and ventilation systems to minimize temperature-related stress on roofing components.
The Challenge:
Bowmanville's proximity to Lake Ontario creates higher humidity levels, while spring and fall bring increased rainfall. This moisture exposure can lead to premature aging of roofing materials and potential mold growth.
Our Solution:
We employ moisture-resistant underlayment and enhanced ventilation systems specifically designed for Bowmanville's humidity levels. Additional waterproofing measures are taken around valleys and penetrations to ensure maximum protection.
Comprehensive Protection
Every roof installation includes dual warranty coverage: our lifetime workmanship guarantee plus manufacturer product warranties registered in your name.
Our lifetime workmanship warranty protects Bowmanville homeowners with comprehensive coverage that matches our town's commitment to quality. This transferable warranty safeguards against installation-related issues, particularly important for heritage homes in our historic downtown and newer developments alike.
We partner with leading manufacturers to provide enhanced warranty coverage specifically designed for Bowmanville's unique climate conditions. These warranties include protection against high winds common to Lake Ontario's influence, extreme temperature variations, and winter wear-and-tear.
Our leak-free guarantee considers Bowmanville's varied weather patterns, from heavy spring rains to winter ice damming. We ensure your roof remains watertight through all seasons, backed by our rapid response guarantee for any weather-related concerns.
Our annual maintenance program is tailored to Bowmanville's seasonal challenges, including post-winter inspections, fall gutter cleaning, and summer heat checks. We focus on preserving both modern and heritage roofing systems throughout our community.
Make Your Roof Affordable
We understand Bowmanville homeowners' needs with flexible financing solutions that make quality roofing affordable. Our local partnerships with Ontario-based financial institutions offer competitive rates and convenient payment options.
Take advantage of interest-free financing for 12 months on complete roof replacements. Perfect for Bowmanville homeowners looking to maintain their historic properties or upgrade their modern homes without immediate financial strain.
Start protecting your Bowmanville home today and pay later with our six-month payment deferral program. Ideal for emergency repairs or planned renovations, with no payments required until 2024.
Choose from customizable payment plans up to 15 years, with competitive rates for Bowmanville residents. Our local financing specialists work with you to create a comfortable payment schedule that fits your budget.
Most homeowners qualify for some level of financing. Apply today to learn your options.
We install products from industry-leading manufacturers, each offering unique benefits and comprehensive warranties.
North America's #1 Roofing Manufacturer
GAF's premium shingles are specifically tested to withstand Bowmanville's harsh winters and hot summers. Their Timberline HDZ series features advanced wind resistance up to 130 mph, perfect for our Lake Ontario weather patterns. Backed by North America's largest roofing manufacturer with up to 50-year warranties.
Best For:
Premium residential installations with lifetime warranties
Canadian Manufacturing Excellence
Canadian-made IKO shingles are engineered specifically for our Ontario climate. Their Cambridge collection offers superior ice-dam protection and granule retention, essential for Bowmanville's freeze-thaw cycles. Manufactured in nearby Brampton, ensuring fresh, quality materials for local installations.
Best For:
Excellent value with proven Canadian performance
Stone-Coated Steel Roofing
DECRA's stone-coated steel roofing provides ultimate protection against Bowmanville's severe weather conditions. Their profiles complement both heritage and modern homes while offering industry-leading impact resistance and snow shedding capabilities. Ideal for properties needing lasting durability.
Best For:
Permanent roofing for luxury homes and harsh climates
Not sure which manufacturer is right for you? We'll bring samples and help you choose during your free consultation.
Schedule Material ConsultationBowmanville's historic downtown area features stunning Victorian and Edwardian homes dating back to the 1800s. These architectural treasures, particularly along King Street and Church Street, showcase period-specific roofing designs that require specialized care and attention to maintain their historic character and charm.
We utilize authentic slate, cedar shakes, and heritage-grade architectural shingles that match original specifications. Our suppliers provide materials that replicate historical patterns and colors common to Bowmanville's heritage district.
Our heritage roofing team understands Bowmanville's preservation guidelines and works closely with the Heritage Advisory Committee. We carefully document existing roofing elements, source period-appropriate materials, and implement restoration techniques that honor the original craftsmanship while meeting modern safety standards.
We balance heritage aesthetics with modern building code requirements for ventilation, fire rating, and structural safety.
Our team prepares detailed proposals and specifications for heritage committee review, streamlining the approval process.
Victorian, Edwardian, Arts & Crafts
Authentic cedar shake preserves historic character with natural grain patterns and weathered gray patina.
Gothic Revival, Italianate, Georgian
Quarried slate in traditional colors (Vermont green, purple, black) provides 100+ year lifespan.
Modern heritage-compatible option
High-definition shingles mimic cedar shake or slate appearance while meeting modern performance standards.
We've successfully completed roofing projects on dozens of heritage-designated properties. Let us handle the committee approval process.
Discuss Heritage ProjectWe strictly adhere to Bowmanville and Ontario building codes, maintaining comprehensive safety protocols that exceed municipal requirements. Our team regularly updates safety training specific to heritage and modern roofing projects.
Full WSIB coverage protects our workers and Bowmanville homeowners. We maintain detailed documentation and compliance records for every project in Durham Region.
Our $7M liability insurance policy provides extensive coverage for all Bowmanville projects, offering homeowners complete peace of mind during renovations and repairs.
Our team holds current certifications from major manufacturers and industry associations, with specific training for heritage roofing in Ontario's historic districts.
OHSA-certified fall arrest systems and safety protocols on every job
Rated "Best of" multiple years with verified customer reviews and A+ BBB rating
Each Bowmanville neighborhood presents distinct roofing challenges. Downtown's heritage homes require specialized restoration, while North End's newer developments need modern energy-efficient solutions. South End features diverse housing styles from multiple eras, and East Side properties often face unique wind exposure requiring enhanced shingle protection.
Our Bowmanville-based team brings over 25 years of local roofing experience. We're active community members, supporting the Bowmanville Rotary Club and local heritage preservation initiatives. Our crews understand the unique architectural styles throughout Durham Region and maintain strong relationships with local suppliers and building officials.
Bowmanville's proximity to Lake Ontario influences local weather patterns, with significant snowfall and spring rains impacting roofing schedules. We typically recommend major projects between May and October, while emergency repairs are available year-round. Our teams are equipped to handle winter ice dam prevention and summer heat-related challenges.
As Bowmanville's premier roofing contractor, we offer unmatched heritage expertise, transparent pricing, and lifetime workmanship warranties. Our local presence ensures quick response times, and our deep understanding of Durham Region's building requirements streamlines permit processes. We maintain an A+ BBB rating and stellar community references.
Get answers to common questions about roof replacements, warranties, and our process.
Our roofing crews live and work throughout Bowmanville, ensuring fast response times and local expertise.
Schedule your complimentary roof inspection and receive a detailed proposal with material samples, timeline, and warranty details. Our roofing advisors are here to answer every question.
Maximize your home's protection and curb appeal with our comprehensive exterior services
Protect and beautify your Bowmanville home with premium vinyl, fiber cement, or engineered wood siding.
Learn More →Complete gutter solutions including installation, repair, cleaning, and gutter guard systems for Bowmanville homes.
Learn More →Energy-efficient window and door replacements to improve comfort and reduce heating costs in Bowmanville.
Learn More →Reduce energy bills by up to 30% with professional attic insulation services in Bowmanville.
Learn More →Tools and information to help you make informed decisions about your roofing project
Get an instant estimate for your Bowmanville roofing project with our interactive calculator
Browse our gallery of completed roofing projects in your area with before and after photos
Expert tips on roofing materials, maintenance, and choosing the right contractor
Learn about roofing systems, warranties, and what to expect during your project

Don't miss this 60% OFF offer! Contact us today.
📍 Visit Us
45 Worthington Dr Unit H
Brantford, ON N3T 5M1
✉️ Email Us
info@customcontracting.ca