What it usually means, the likely causes in order, what to safely try first, what a pro charges in Canada, and when to stop and call one.
This guide covers the common cases. Describe your exact problem and get a personalized diagnosis — free to start, with a DIY vs. call-a-pro verdict and a real cost estimate.
Missing, cracked, curled, or creased shingles visible from the ground are the roof showing its wear on the surface. Shingles are the sacrificial, water-shedding layer: when wind tears tabs away, when heat and age curl and crack them, or when granules wash off and leave them bald, the underlayment and decking beneath take weather they were not meant to face alone. A few damaged shingles after a storm is a repair. Widespread curling and granule loss across whole slopes is the roof announcing its age. Either way, the assessment starts from the ground - photograph, zoom, note the slope and pattern - because the distribution of damage tells the story better than any single shingle.
Missing shingles should be repaired promptly - within weeks, and before the next major storm if possible - because the exposed layer beneath degrades quickly in sun and rain and leaks often follow. A single lifted tab in calm forecasts is less pressing than a bare patch over living space heading into a rainy stretch. Upgrade urgency if interior stains or drips have already appeared, or if a storm has stripped a large area at once, which can justify a temporary cover by a roofer.
High winds lift shingle tabs whose seals have weakened, crease them back until they crack, or tear them off entirely, often along ridges, edges, and the windward slope. Storm damage tends to be patterned by direction and concentrated in zones, with matching debris in the yard and gutters filled with granules after the event.
As asphalt shingles age, they lose flexibility and protective granules, curl at the edges, and crack. This wear appears across whole sun-exposed slopes rather than in storm patches, though it makes storm damage far more likely because curled, brittle shingles cannot seal or resist wind the way flexible ones do.
Shingles that were mis-nailed, nailed too high, or installed in cold weather so their seal strips never bonded can lift and blow off years before the material itself wears out. If neighbours with similar-age roofs are intact while yours sheds shingles each storm, installation quality belongs on the suspect list.
Poor attic ventilation bakes shingles from beneath and shortens their life, while fallen branches, foot traffic from other trades, and animals can crack or displace individual shingles. Localised damage with an obvious event - a limb, a recent satellite install - fits this physical-cause pattern rather than general ageing.
| Job size | Typical estimate (CAD) |
|---|---|
| Simple fix — the straightforward version of this repair | $150–$400 |
| Major job — complex, hidden, or replacement-level work | $600–$4,000 |
Estimates only, calibrated to Greater Toronto Area trade rates and adjusted by region on this site — not a quote. Your exact price depends on the cause, parts, and access. A personalized diagnosis narrows this range using your specific symptom.
Ground documentation is yours; every repair on the surface is a roofer job. Replacing individual shingles well means matching material, lifting and resealing neighbours without cracking them, and nailing in the correct zone - fiddly, height-based work with fall protection. The bigger judgment a roofer brings is repair versus replacement on an ageing roof: ask anyone quoting a patch on widespread curling to also state the remaining life they see, so you are not buying repeated patches on a roof that is finished.
It is risky to wait. The exposed underlayment is a temporary water shield, not a finished surface - sun degrades it and wind-driven rain finds its laps. Each storm on an exposed patch increases the chance of a leak and decking damage that costs far more than the shingle repair. If a wait is unavoidable, ask a roofer about a temporary cover for the exposed area.
Curling is the roof ageing in plain sight: the shingles are losing flexibility and seal, so leaks and wind loss become progressively more likely even before the first drip. It is not an emergency, but it is a planning signal - get an honest remaining-life assessment and budget for replacement rather than being surprised by the first interior stain.
Granules protect asphalt shingles from sun and impact. New roofs shed some loose granules normally, but heavy, ongoing granule loss on an older roof means the shingle surface is wearing away, leaving asphalt exposed to accelerate ageing. Combined with curling or bald-looking patches, it is one of the clearest signs a roof is near the end of its service life.
That depends on your policy and the extent of damage, and it is your call to make with the insurer - but document first either way. Photograph damage and debris promptly after the storm, keep dates, and get a roofer assessment of storm-pattern versus age-pattern damage. Insurers distinguish sudden storm loss from gradual wear, and your ground photos help establish which you have.
Describe what's actually happening and get a personalized diagnosis — DIY vs. call-a-pro verdict, real cost estimate, and top-rated local pros.