Roofing, Flat Roof, Commercial Roofing, Roof Replacement, Roofers, Mississauga, Toronto, Edmonton, Vancouver, Calgary Roof Repair, Roof, Restoration, Metal Roof, Fort McMurray, Red Deer, Lethbridge, Canmore, Industrial Roofers 

Roof Repair, Roofing Contractor, Flat Roofing, TPO, EPDM, PVC, Tar Gravel, SBS, Torch On, Edmonton

General Roofing Systems Canada (GRS) 

Welcome to our main roofing and exterior renovation website. GRS maintains a library of websites, blogs, and social media sites offering authoritative roofing and exterior renovation resources.

Whether you are; interested in contracting GRS, researching industry specific information, looking for simple advice, or wish to be referred to a contractor that can perform the work you need (in the event we are not servicing your geographical area or scope of work) - our goal is to be a great place for you to start.

For more information about our services or to ask a simple question call us anytime, 24 hours, toll free at +1.877.497.3528. Use this online contact form or email us at

Visit our roofing blog or staff articles here. Read our most recent staff article: Roofers - How to Hire the Right TYPE of Roofer.

Specific information about our roofing and exterior services: Emergency Roof Repair, Waterproofing, Decks, Inspection, Coating, Liquid Rubber, Spray Foam

GRS is a comprehensive roof repair, exterior renovation, waterproofing, coatings, steep pitch roofing, low slope roofing and flat roofing contractor. 

Our company provides traditional and proprietary single-source solutions for complete repair and replacement of exteriors, steep pitch, metal, and flat roofs to any project size.

Primary exterior renovation, waterproofing, and roofing disciplines we possess are:

Roof repair, emergency roofing, maintenance, retro-fits, restoration, replacement, sloped (shingle, tile, cedar shake, skylights, vents), flat roofing (TPO, PVC, EPDM, SBS Modified, Torch-On, Tar Gravel, Liquid Rubber), metal roofing (standing seam, ribbed, corrugated, cladding), shingles (IKO, BP, GAF, Certainteed, Malarkey, Owens Corning), sheet metal, low slope, roof coatings (liquid rubber, spray polyurethane foam SPF), inspection, preventative maintenance, industrial coatings, building envelope, waterproofing (DecTec, liquid applied coating), residential attic ventilation, roof snow removal, ice dam removal, and exterior renovation services (siding, soffit, fascia, gutters and eaves-trough).  Residential, Calgary Flat Roofing, Roof Coating, Gutter, Fascia, Soffit, Vent, Snow Ice Dam Removal

Our roofers service residential, industrial, institutional, agricultural, commercial roofing and exteriors.

Our residential and commercial steep pitch (shingles, metal, tile, cedar shake, skylights, attic ventilation, siding, gutters), flat roofing, inspection, repair and replacement (Tar and Gravel, TPO, PVC, EPDM, SBS Torch-On, decks) service area is British Columbia, Alberta, Saskatchewan, Manitoba, and Ontario. At times our company services other parts of Canada and consults internationally.

Exterior Renovators, Roof Contractors, Emergency Roof Repair Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat,
Lethbridge, Canmore, Cranbrook, Kelowna, Vancouver, Whistler, Winnipeg, MississaugaToronto and points between.

Edmonton, Alberta, Tile, Shingles, Cedar, Shakes, Skylights, Attic Ventilation, Maintenance, RubberAbout our history:

General Roofing Systems Canada (GRS) was built from the ground up. Our beginnings had us serving roofing contractors at one residence at a time as roof and siding sub-contractors. Over time we were contracted to multi-family, industrial, commercial roofing and repairs. Our company name has become synonymous with quality, innovation, and expertise. Edmonton Roofing Repair in photo to right.

Today, customers trust our pitched and flat roofers to significant asset management, repairs, and projects which include some of the largest commercial roofing and industrial roofs in the world.

What makes us different: Steel Shingle, Velux Skylights, Columbia, IKO, Malarkey, GAF, Certainteed, Owens Corning, BP, Winnipeg, Toronto

What sets us apart is an industry leading Lifetime Workmanship Guarantee and our commitment to core values. Old-fashioned hard work, honest customer service, customer education, superior property stewardship, an unwavering position toward safe work, and a passion for pinnacle roof craftsmanship are examples of values we hold. 
These build trust with customers, a strong company culture, and great character in roofers who enjoy a job well done. Calgary Roofing Repair in photo to right.

Learn more about us:

To learn more or request anVancouver, BC, Whistler, Standing Seam, Kelowna, Cranbrook, Lloydminster, Saskatoon, Regina, SK, Siding estimate call +1.877.497.3528, fill out our Service Request Form, or email

Thank you for considering our company for your project needs!

Page Topics:

Contractors for Inspection, Maintenance, Vents, Attic Ventilation, Coatings, Spray Foam. Snow and Ice Dam Removal, Pitched (Shingles, Tile, Cedar Shake), Metal
, Liquid Rubber, and Flat Roofing (EPDM, TPO, PVC, Tar and Gravel, SBS, Torch-On). Exteriors (Siding, Soffit, Fascia, Gutters, Skylights, Decks) for Residential, Institutional, Industrial and Commercial. Calgary
, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, SK, Regina, Medicine Hat, Lethbridge, Canmore, AB, Cranbrook, Kelowna, Vancouver, Whistler, BC, Winnipeg, MB, Mississauga, Toronto, ON and points between.

Shingle, Shakes, Tile, Rubber, Siding, Gutters, Attic Ventilation, Waterproofing, Deck, DecTec, Liquid Rubber, Replacement, Restoration, Emergency Service, Inspections, Building Envelope, Residential, Industrial, Contractors, Exteriors, Siding, Eavestrough, Skylights (Velux, Columbia), Vents, Mississauga, Toronto, Calgary, Edmonton, AB, Edmonton Roofing Contractors, Edmonton Commercial Roofing, Vancouver, Alberta, British Columbia, Saskatchewan, Manitoba, Ontario.

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