5 Signs It’s Time to Replace Your Roof

Your roof is one of the most important parts of your home—but it’s also easy to forget about until something goes wrong. Whether you’re dealing with visible wear or wondering if your roof can survive another Ontario winter, here are 5 clear signs it might be time to replace it.

1. Missing or Damaged Shingles

If your shingles are curling, cracked, or missing altogether, your roof is no longer protecting your home like it should. Damaged shingles can lead to water leaks, rot, and costly interior repairs.

2. Leaks or Water Stains in the Attic or Ceiling

Noticed water stains on your ceiling or moisture in the attic after a rainstorm? Even small leaks can grow fast—especially with Ontario’s freeze/thaw cycles. A leaking roof is often a sign it’s time for full replacement.

3. Your Roof is Over 15–20 Years Old

Asphalt shingle roofs typically last 15–20 years. If yours is in that range—or you’re not sure when it was last replaced—it’s smart to schedule an inspection before problems pop up.

4. Moss, Algae, or Dark Streaks

Discoloration or green growth can trap moisture against your shingles, speeding up deterioration. It also means your roof isn’t draining properly—another sign of age or damage.

5. Your Neighbours Are Getting New Roofs

If homes in your neighborhood were built around the same time, they’ll likely need new roofs around the same time too. A surge of new roofs nearby is a clue your home might be next.

Not Sure? Get a Free Roof Inspection in Sarnia

At Exterior Styles, we offer honest assessments, clean job sites, and high-quality work that stands the test of time. Whether it’s a full replacement or a simple repair, we’ll give you the info you need to make the right call.