
Roofing, HVAC, Windows, Siding & Exterior Services in Hamilton, Ontario
Custom Contracting is your trusted local contractor for residential roofing, siding, windows, doors, eavestroughs, and HVAC services throughout Hamilton and the Greater Hamilton Area.
Your Trusted Hamilton Services Experts in Hamilton
Serving Hamilton for 15 years, our team has completed 3,500 hamilton services projects across the Golden Horseshoe. We understand Hamilton's unique climate challenges, building codes, and architectural styles.
Full-Service Contractor
Services We Provide in Hamilton
From roofing to HVAC, we're your one-stop solution for all exterior home improvement needs.

Residential Roofing
Expert roof installation and repair services for Hamilton homes. From asphalt shingles to metal roofing, we've got you covered.

Siding Installation
Beautiful, durable siding for Hamilton's climate. Vinyl, fiber cement, and more options to enhance your home.

Eavestroughs & Gutters
Premium gutter systems and gutter guards. Protect your foundation with seamless aluminum eavestroughs.

Windows & Doors
Energy-efficient replacement windows and doors. Reduce energy costs and increase home comfort.

HVAC Services
Heating and cooling installation and maintenance. Keep your Hamilton home comfortable year-round.

Attic Insulation
Improve energy efficiency with proper insulation. Save on heating and cooling costs.
Our Work
Recent Hamilton Projects
See our quality craftsmanship in action throughout Hamilton neighborhoods

Roof Replacement - Ancaster
Complete architectural shingle installation

Siding Installation - Dundas
Modern vinyl siding transformation

Windows - Stoney Creek
Energy-efficient window upgrade

Metal Roofing - Waterdown
Standing seam metal roof

Fiber Cement - West Hamilton
Premium James Hardie siding

Patio Doors - Mountain
Beautiful patio door installation
Your Local Experts
Why Hamilton Homeowners Choose Us
We understand Hamilton's unique climate and architectural styles, providing solutions tailored to your needs.
Fast Response Time
We're local to Hamilton and can respond quickly to your roofing and exterior needs.
25+ Years Experience
Trusted by Hamilton homeowners for over two decades with thousands of completed projects.
Licensed & Insured
Fully licensed, insured, and WSIB covered for your complete protection and peace of mind.
Flexible Financing
0% interest financing available (OAC) with no payments for one year on qualifying projects.
Lifetime Warranty
Our lifetime written workmanship warranty protects your investment for years to come.
Excellent Service
From estimate to completion, we're with you every step of the way with outstanding customer support.
We're In Your Neighborhood
Hamilton Areas We Serve
Proudly serving all Hamilton neighborhoods and surrounding communities.
Don't see your neighborhood? We likely serve it! Contact us to confirm.
Ready to Get Started in Hamilton?
Visit Us
Unit 130, 657 Upper James St
Hamilton, ON L9C 5R8
Upper James Service Hub
Fast Response
Free estimates
Same-day quotes available
Emergency services
Find Us in Hamilton
Explore our Hamilton service hubs on Google Maps and see recent reviews from homeowners across the city.
Hamilton – Upper James Service Hub
Hamilton – Catharine Street Service Hub
Hamilton's Trusted Roofing & Exterior Contractor
For over 25 years, Custom Contracting has been the go-to contractor for Hamilton homeowners seeking quality roofing, siding, windows, and exterior services. Our team understands the unique challenges that Hamilton's climate presents—from harsh winters with ice dams to summer storms—and we use proven techniques and premium materials to protect your home.
Whether you're in historic Dundas, growing Waterdown, or anywhere in the greater Hamilton area, we're your local experts. We've completed thousands of projects throughout Hamilton, and our reputation speaks for itself through our 5-star reviews and lifetime workmanship warranty.
From emergency roof repairs to complete exterior renovations, we handle projects of all sizes with the same level of professionalism and attention to detail. Our flexible financing options make it easy to invest in your home's protection and value.
Contact Custom Contracting today for your free, no-obligation estimate. Experience the difference of working with Hamilton's most trusted exterior contractor.
What Hamilton Homeowners Say About Us
Don't just take our word for it. See what your Hamilton neighbors have to say about our work.
"Custom Contracting replaced our roof last summer and we couldn't be happier. The crew was professional, cleaned up perfectly, and the new roof looks amazing. The project was completed in just one day! Highly recommend to any Hamilton homeowner."
Sarah M.
Westdale, Hamilton
"Excellent experience from quote to completion. They helped us navigate the insurance claim after storm damage and got our roof replaced quickly. The lifetime warranty gives us peace of mind. Great local Hamilton company!"
John D.
Ancaster, Hamilton
"We had siding and eavestroughs done on our home. The attention to detail was impressive and the financing made it affordable. The team was respectful, answered all our questions, and the work is top quality. Thank you!"
Maria L.
Stoney Creek, Hamilton
4.9 out of 5 stars based on 127+ reviews
Read More Reviews on HomeStarsFrequently Asked Questions About Roofing in Hamilton
Get answers to common questions from Hamilton homeowners.
Q:How much does a new roof cost in Hamilton?
A: The average cost for a new roof in Hamilton ranges from $5,000 to $15,000 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 ($7-$12 per sq ft) but lasts significantly longer. We offer free estimates and 0% financing options to make your project affordable.
Q:What's the best roofing material for Hamilton's climate?
A: For Hamilton's climate with cold winters and hot, humid summers, we recommend architectural asphalt shingles or metal roofing. Both handle temperature fluctuations well and resist ice dam formation. Metal roofing excels in snow shedding and longevity (50+ years), while quality asphalt shingles offer excellent value and typically last 25-30 years with proper installation and maintenance.
Q:How long does a roofing project take in Hamilton?
A: Most residential roofing projects in Hamilton 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 may take 2-3 days. We work efficiently while maintaining the highest quality standards.
Q:Do I need a permit for roofing work in Hamilton?
A: Yes, roofing work in Hamilton requires a building permit from the City of Hamilton. 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 Hamilton municipal bylaws. Permits typically take 5-10 business days to process.
Q:Does Custom Contracting serve all Hamilton neighborhoods?
A: Yes! We proudly serve all Hamilton neighborhoods including Ancaster, Dundas, Stoney Creek, Waterdown, Westdale, the Mountain, downtown, and everywhere in between. We're a local Hamilton company with deep roots in the community, and we can typically provide same-week estimates anywhere in the city.
Q:What warranty do you offer on roofing in Hamilton?
A: We provide a lifetime written workmanship warranty on all our roofing installations in Hamilton. Additionally, the materials come with manufacturer warranties ranging from 25 years to lifetime, depending on the shingles you choose. Our warranty is fully transferable if you sell your home, adding value to your property.
Q:Can you help with insurance claims in Hamilton?
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, provide detailed estimates, and work directly with your insurance adjuster to ensure you get fair coverage. Many Hamilton homeowners don't realize their damage is covered – let us help you find out.
Q:What's included in a free roofing estimate in Hamilton?
A: Our free estimates include a thorough roof inspection, detailed measurements, material recommendations based on your home and budget, itemized pricing, financing options, and answers to all your questions. We'll also check your eavestroughs, fascia, soffit, and ventilation. The estimate typically takes 30-45 minutes, and we'll email you a detailed proposal the same day.
Have more questions? We're here to help!
Contact UsOur Hamilton Experience
Our team has been serving Hamilton homeowners with hands-on expertise for years. We've completed thousands of projects across every neighborhood, understanding the unique challenges of Hamilton's climate, building codes, and property types.
Professional Certifications & Expertise
Industry Certifications
- WSIB Registered & Compliant
- Ontario Master Contractor License
- TSSA Certified (Technical Standards & Safety Authority)
- CertainTeed ShingleMaster™ Certified
- GAF Master Elite® Contractor
- ENERGY STAR® Partner
Manufacturer Partnerships
- Carrier Factory Authorized Dealer
- Lennox Premier Partner
- IKO Roofing Preferred Contractor
- Owens Corning Platinum Preferred
- James Hardie Elite Preferred Contractor
- Pella Certified Installation Expert
All our contractors are: Licensed, insured, background-checked, and continuously trained on the latest industry standards and techniques. We invest in ongoing education to ensure we deliver cutting-edge solutions.
Industry Recognition & Awards
Industry Memberships & Affiliations
Our Guarantees & Commitments
Lifetime Workmanship Warranty
All our installation work is backed by our lifetime workmanship warranty
Transparent Pricing
No hidden fees. Detailed quotes with all costs itemized upfront
Satisfaction Guarantee
We don't consider the job done until you're 100% satisfied
Licensed & Fully Insured
Insurance Coverage
- $7 Million General Liability Insurance
- WSIB Coverage for All Workers
- Bonded Contractor Protection
Payment Security
- Flexible Payment Options (Cash, Credit, Financing)
- 0% Financing Available (OAC)