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). 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.