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When it comes to your home, the roof doesn’t always scream for attention.

But ignoring small issues up there can quickly lead to big, expensive problems. Not every roof issue is dramatic—but certain warning signs should never be ignored.

So, how do you know when it’s time to bring in a professional? Let’s go over some of the clearest signs that it’s time to contact a local roofer—sooner rather than later.

1. Leaks or Water Stains Inside the House

This is the most obvious (and urgent) sign something’s wrong. If you see water stains on your ceilings or walls, or worse—actual dripping—don’t wait. Even a small leak can spread quickly, soaking insulation, damaging drywall, and encouraging mold.

The source of the leak might not be directly above the stain. Water can travel along beams and surfaces before it shows up. A roofer will be able to trace the leak to its origin and stop it before it causes more damage.

2. Missing or Damaged Shingles

After a storm, it’s a good idea to check your yard or gutters for pieces of shingles. If you see any, chances are your roof has been compromised, meaning you should contact your local roofer sooner rather than later!

Even just a few missing or broken shingles can expose the underlayer of your roof to water and sun damage. Over time, that exposure can lead to rot and leaks. If your roof looks patchy or uneven from the ground, or if you notice shingles curling or cracking, it’s time to call a roofer.

3. Sagging or Uneven Roof Lines

Your roofline should look straight and solid. If you notice any dipping, sagging, or a wavy appearance, that’s not just a cosmetic issue—it’s a potential structural problem.

A sagging roof could be a sign of:

• Moisture damage in the decking
• Compromised rafters
• Poor installation
• Age-related wear

This isn’t something to put off. Structural problems can worsen quickly and may even pose a safety risk if ignored.

4. Granules in the Gutters

Asphalt shingles are coated with protective granules. These tiny pieces help your roof shed water and resist the sun’s UV rays. But over time, those granules can start to wear off—especially on older roofs.

If you start seeing dark, sand-like debris in your gutters or downspouts, that’s a red flag. Excessive granule loss means your shingles are aging and losing their effectiveness. It’s a sign your roof may need repair or even replacement soon.

5. Moss, Mold, or Algae Growth

While it might seem like a cosmetic issue, moss and mold on a roof can signal moisture problems. Moss, in particular, holds onto water and can damage shingles over time by lifting them and allowing water underneath.

Algae streaks aren’t necessarily damaging on their own, but they could point to trapped moisture—especially in shaded areas where the roof stays damp.

If your roof looks green, patchy, or streaky, it’s worth having a professional take a look. They can assess whether it’s just surface-level or a deeper issue.

6. Daylight in the Attic

Yes, you read that right. If you go up into your attic and notice rays of sunlight coming through the roof boards, it’s a problem. Those little holes that let in sunlight will also let in water, insects, and cold air.

This usually means there are gaps or cracks in the roofing materials—or even rot. If it’s gotten to the point where light is shining through, don’t wait. Call a roofer before the next rainstorm makes things worse.

7. Your Roof Is Over 20 Years Old

Even if everything looks okay from the ground, age matters. Most asphalt shingle roofs are designed to last around 20 to 25 years. If yours is approaching that age—or you’re not sure how old it is—it’s smart to have it inspected.

Older roofs are more vulnerable to wind, rain, and sun damage. Materials break down, seals weaken, and the risk of leaks increases. Regular maintenance helps, but at some point, replacement becomes the safer (and more cost-effective) option.

Don’t Wait for the Problem to Grow

Here’s the thing about roofs: when there’s a problem, it usually doesn’t stay small for long. A minor leak can become a major repair job. A few missing shingles can lead to rot and structural issues. The sooner you act, the better your chances of avoiding costly damage.

If you’ve noticed any of the signs above—or if you’re just unsure—getting a professional opinion is always worth it. Roofers can spot issues you might not see from the ground and help you make the right call before things get worse.

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