Roofing Calgary with Tony William Roofing & Exteriors. Call Tony William Roofing for your Calgary siding and roofing needs. From minor Calgary roof repairs to complete exterior makeovers, we are the experts. Our renovation team has completed over 3500 roofing and siding projects. Ask us about Euroshield rubber roofing or laminated architectural shingles. Serving homes and businesses across Calgary, Airdrie, Okotoks and surrounding areas.