Trusted Roofing Services in Barrie, Wasaga Beach & Surrounding Areas
- Asphalt Shingle Roofing
- Metal Roofing
- Flat Roof Systems
- Residential & Commercial
- Seasonal discounts up to 30% and 6-month financing available
Professional Solutions
Our Trusted Roofing Services
Professional asphalt, metal, and flat roofing services for homes and cottages across Barrie, Wasaga Beach, Collingwood, Orillia, and nearby areas, built for snow load, ice buildup, lake weather, and high winds.
Asphalt · Metal · Flat
Roof Installation Services
Professional roofing solutions for homes, cottages, and commercial properties across Barrie, Wasaga Beach, Collingwood, Orillia, and surrounding areas, built for durability, weather protection, and reliable year-round performance.
✓ Residential, cottage, and commercial roofing
✓ Protection against snow, wind, and harsh weather
✓ Durable materials built for long-term performance
✓ Reliable installation with lasting quality
Leaks · Storm Damage · Urgent
Roof Replacement Services
Reliable roof replacement solutions for homes, cottages, and commercial properties across Barrie, Wasaga Beach, Collingwood, Orillia, and nearby areas, built to handle snow load, lake weather, and harsh seasonal conditions.
✓ Snow and ice-damaged roof replacement
✓ Flashing and seal deterioration repair solutions
✓ Structural reinforcement for sagging roof areas
✓ Storm and high-wind roof damage restoration
Professional Solutions
Types of Roof Replacements We Handle
These are a few common roofing replacement issues we often see in homes and cottages throughout Barrie and surrounding lake-region communities.
Roof Leak Concerns
We repair and replace damaged roofing areas to help prevent ongoing moisture intrusion.
Lifted or Missing Shingles
We replace loose or weather-damaged shingles to restore roof protection and durability.
Storm Roof Damage
We repair roofing systems affected by storms, snow, ice, and harsh seasonal conditions.
Flashing & Ventilation
We replace damaged flashing and ventilation components to improve moisture protection.
Gutter Drainage Issues
We repair blocked or damaged gutter systems to improve roof drainage performance.
Sagging Roof Areas
We reinforce weakened roofing structures to improve long-term roof stability.
Roofing Systems We Provide
Asphalt Shingle Roofing
Affordable and versatile, offering reliable protection for homes and cottages in changing weather conditions.
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Metal Roofing
Engineered for harsh weather, snow exposure, and long-lasting structural protection.
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Flat Roofing
Durable flat roofing solutions including TPO, EPDM, and modified bitumen for commercial and modern residential applications.
Certified Craftsmanship
Professional Roofing Experts
Our team delivers roofing expertise for homes, cottages, and commercial properties exposed to harsh seasonal weather across Barrie and surrounding lake-region communities.
- 15+ years of professional roofing experience
- Transparent pricing with no hidden fees
- Warranty-backed roofing materials and workmanship
- Cost-effective roofing solutions
- Fully insured roofing services
- Licensed and insured roofing team
- Specialize in complex claims
- Certified materials and trusted brands
With Credentials
Our Values & Commitments
Quality Craftsmanship
Dedicated to providing exceptional quality and attention to detail in every project.
Integrity & Transparency
Building lasting relationships through honest communication and transparent business practices.
Client-Focused Approach
Putting customer needs first and striving to exceed expectations at every stage.
Trusted & Reliable Service
Delivering dependable solutions with projects completed on schedule and within budget.
Commitment to Safety
Maintaining strict safety standards to protect both clients and project teams.
Community Support
Actively contributing to and supporting the local community through meaningful involvement.
Innovation
Embracing modern technologies and industry advancements to deliver efficient, innovative results.
Professionalism
Upholding professionalism, respect, and accountability in every interaction.
Find Our Showroom, Warehouse or Office Near You
Our team proudly serves Barrie, Wasaga Beach, Collingwood, Orillia, and nearby communities with trusted roofing services, professional installation, and long-term protection for residential and commercial properties.
- 3 Showrooms
Guelph (519) 836-0000
Wasaga Beach (705) 352-5552
Glencairn (705) 466-9997
TRUSTED EXPERTISE
SAVE UP TO 30% ON ROOFING SERVICES
6-MONTH FINANCING
Featured Roofing Projects Across Barrie & Nearby Areas
Discover roofing projects completed across Barrie and nearby communities, from residential roofing upgrades to full replacement solutions built for lasting protection.
Our Step-by-Step Roofing Process
Our streamlined roofing process ensures smooth communication, reliable workmanship, and a professional experience from consultation to completion.
Trusted Roofing Brand Partners
What Our Customers Say
Chris Walker
I recently had my roof replaced and the whole experience went really smoothly. The crew showed up on time, kept everything clean, and finished the job quicker than I expected. At first, it felt a little strange handling such a big project mostly over phone calls and emails, but communication was great the entire time. The pricing was also very fair compared to other companies I spoke with, and overall I’m really happy with the work.
Benjamin Robert
Earlier this year, my asphalt roof was damaged by hail, so I started looking into a more durable long-term option and decided to go with metal roofing. I reached out to Global Alliance, and honestly, they made the whole process really easy from start to finish. The crew was professional, worked efficiently, and the installation turned out great. The new roof looks amazing, and I’ve already noticed better insulation and a cooler attic compared to my old shingles. I’m really happy with the result and would definitely recommend Global Alliance to anyone thinking about replacing their roof.
Jason Miller
I recently had a stone-coated steel roof installed and honestly couldn’t be happier with how everything turned out. The team kept me updated throughout the whole project, answered my questions quickly, and finished everything right on schedule. The crew did a great job with both the installation and cleanup, and the new roof looks fantastic. I’ve already had a few neighbors compliment it, and I’d definitely recommend Global Alliance to anyone looking for a new roof.
Daniel Carter
Everyone at Global Alliance was friendly, professional, and easy to work with. The crew stayed on schedule, kept us updated throughout the project, and answered our questions quickly. Overall, the whole process was smooth and stress-free.
Jason Miller
Working with Global Alliance was a really great experience. Their team inspected our roof, helped us through the insurance claim process, and made everything simple and stress-free. We chose a hurricane shake metal roof, and the final result looks amazing. The workmanship was excellent, and we’re extremely happy with how everything turned out. We’d definitely recommend Global Alliance to anyone needing a new roof.
Kevin Marshall
I spent a lot of time comparing different roofing options and companies before choosing Global Alliance, and honestly, I’m really glad I did. The crew showed up on time, worked hard every day, and were easy to deal with throughout the whole project. Everything was handled exactly the way they promised, and the new roof turned out even better than I expected. I absolutely love it.
Frequently Asked Questions
- Limited-time roofing offers
Get A Free Roof Estimate
SAVE UP TO 30%
6-MONTH FINANCING
- Professional inspection of all roof components
- Transparent evaluation with no pressure to upgrade
- Fast turnaround on quotes and scheduling
Get a Free Estimate