Roof Installation & Attic Insulation in Ontario
Protect your home, reduce energy bills, and improve comfort with expert roofing and insulation services.
Why Roofing & Insulation Matter
Your roof and attic insulation are two of the most important parts of your home. A strong, well-installed roof protects against Ontario’s harsh weather, while proper attic insulation keeps your home comfortable and energy-efficient year-round. Without the right roofing and insulation, you may face higher energy bills, drafts, or even costly damage.
At GWC General Contractors, we provide professional roof installation and attic insulation services across Ontario. Whether you’re building a new home, replacing an old roof, or upgrading insulation, our team ensures your home stays safe, efficient, and comfortable. We use high-quality materials, follow Ontario Building Code requirements, and deliver every project with precision and care.
- Protects against Ontario’s snow, rain, and wind
- Lowers heating and cooling costs year-round
- Prevents heat loss and improves indoor comfort
- Extends the lifespan of your home and roof
- Adds long-term value to your property
Roof Installation Services
New Roof Installation
For newly built homes or major renovations.
Roof Replacement
Upgrade old or damaged roofs for safety and efficiency.
Material Options
Asphalt shingles, metal roofing, and flat roofs.
Emergency Roofing Repairs
Fast, reliable service for leaks and storm damage.
Attic Insulation Services
Blown-in Insulation
Quick installation with excellent coverage.
Batt Insulation
Durable and effective for long-term performance.
Spray Foam Insulation
Superior sealing for maximum energy savings.
Insulation Upgrades
Replace old or ineffective insulation to improve comfort.
FAQ
If you see missing shingles, leaks, sagging, or your roof is over 20 years old, it may be time for replacement.
Asphalt shingles and metal roofs are popular choices for durability and protection against snow, rain, and wind.
Most insulation lasts 15–20 years, but if it’s compressed, damp, or uneven, it should be upgraded sooner.
Yes. Proper attic insulation prevents heat loss in winter and keeps your home cooler in summer, reducing energy costs.
Most residential roof installations are completed in 2–5 days, depending on size and weather conditions.
Roof replacements usually don’t require permits, but structural changes do. Insulation upgrades generally don’t need permits. We guide you through requirements.
Yes. Our materials and installation services come with warranty coverage for peace of mind.
Absolutely. Many homeowners choose to upgrade both at the same time for maximum efficiency and savings.
Our Process
Roof & Attic Insulation Completed
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- Inspection & Consultation – We assess your roof and attic condition.
- Customized Plan & Estimate – Transparent pricing with tailored solutions.
- Professional Installation – Expert workmanship with quality materials.
- Final Quality Check – We ensure everything is installed correctly and backed by warranty.