We pair 20+ years of installation know-how with tight diagnostics so problems don’t come back. On steep-slope shingle roofs, we specify starter courses, proper valley treatment, and balanced ventilation to control attic heat. On low-slope membranes (torch-on, TPO, EPDM, PVC) we address drainage with crickets and clear scuppers, reinforce corners, and set edge metal to manufacturer specifications. Every job is scoped clearly with photos before and after so you know exactly what was done.

Most calls in Thornhill involve wind-damaged shingles, aging membrane seams, clogged drains that cause ponding, or incorrect flashing around walls and skylights. Our process is simple: trace the leak path, verify with water testing when practical, complete the fix with system-appropriate materials, and clean up like we were never there. That’s how a local Thornhill roofing company keeps your lifetime cost lower and your building dry.

• Fast response in Thornhill — same-day assessment when possible.
• Safety & coverage — licensed, insured, and WSIB.
• Clear warranties — workmanship + manufacturer terms, documented on every invoice.
• Respect for property — protected landscaping, magnet sweep, full cleanup.