Calgary Roof Repair & Replacement

Most roof repairs in Calgary range from $300 to $1,500 depending on the size of the damaged area, the roofing material, and how quickly the repair needs to happen. Minor shingle replacements or small leak patches sit at the lower end. Larger sections of damaged decking, flat roof membrane repairs, or emergency same-day work typically fall at the higher end. The best way to get an accurate number is a free on-site assessment — contact Marku Roofing and we’ll give you a straight answer before any work begins.

Most standard residential repairs — shingle replacement, flashing fixes, minor leak patches — are completed in a single day, often in just a few hours. Larger repairs involving significant decking damage or full flat roof membrane sections may take two to three days. Emergency repairs are prioritized and can be assessed and patched the same day you call.

Yes. Calgary’s climate means roofing problems don’t wait for spring, and neither do we. Emergency repairs are performed year-round. That said, certain materials — particularly asphalt shingles — require temperatures above freezing to seal properly. In cold conditions, our team uses appropriate adhesives and techniques to ensure a secure, lasting repair. If a full replacement needs to wait for warmer weather, we’ll apply a proper temporary fix to protect your home in the meantime.

Calgary’s weather is hard on roofs. The most common causes of roof damage we see are:

• Hail: Calgary sits in one of Canada’s most active hail corridors. A single hail event can crack or dent shingles, compromise flat roof membranes, and accelerate aging across an entire roof surface.
• Freeze-thaw cycles: Water gets into small cracks, freezes, expands, and widens those cracks. This cycle repeats dozens of times each winter and is a leading cause of progressive roof deterioration.
• Chinook winds: The rapid warming events that define Calgary winters create extreme wind gusts that can lift shingles, stress flashing, and expose underlayment.
• Ice damming: Poor attic insulation causes snow to melt unevenly, refreeze at the eaves, and force water back under shingles where it causes interior leaks.

In most cases, a targeted repair is the right call — and it’s always what we look for first. If damage is isolated to one section, a repair extends the life of your existing roof at a fraction of replacement cost. A full replacement makes sense when the roof is at the end of its lifespan (typically 20–25 years for asphalt shingles), when damage is widespread across multiple sections, or when repeated repairs are no longer cost-effective. We’ll give you an honest assessment and won’t recommend a replacement unless it’s genuinely the better option.

The signs aren’t always obvious from outside. Inside your home, look for water stains on ceilings or walls, peeling paint near the roofline, damp insulation in the attic, or musty odours in upper rooms. Outside, look for missing, curling, or cracked shingles, granule buildup in gutters, and damaged or lifted flashing around chimneys and vents. If you see any of these, don’t wait — small leaks become large, expensive problems quickly, especially heading into Calgary’s freeze season.

Yes. Marku Roofing provides emergency roof repair 24 hours a day, 7 days a week. If a storm, fallen branch, or sudden leak has left your home exposed, call us at 403-700-7542 and we’ll get someone out to assess and stabilize your roof as quickly as possible.

We serve Calgary and the surrounding communities including Airdrie, Cochrane, Chestermere, Okotoks, and other areas across southern Alberta. If you’re not sure whether we cover your location, give us a call — we’re happy to confirm.