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Annual Roof Maintenance Checklist to Prevent Leaks

Last updated October 25, 2026

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The short answer

Start with a Ground-Level Inspection

Begin your annual roof check by walking around your home and looking up. Use binoculars to spot missing, cracked, or curled shingles, and check for any sections that look darker or stained, which can signal trapped moisture. Also look at the roofline from different angles to see if any areas sag or dip.

Check the ground around your house for granules from asphalt shingles or pieces of tile, as these can indicate wear. Look at the chimney, vents, and skylights for visible gaps or rust. In mild marine climates with wet winters and dry summers, do this check before the rainy season begins.

  • Look for missing, cracked, or curled shingles
  • Check for dark stains or discoloration on the roof surface
  • Inspect the chimney, vents, and skylights for gaps
  • Look for granules or debris on the ground near downspouts
  • Note any sagging or uneven rooflines

Inspect Flashing and Seals

Flashing is the metal or rubber material that seals roof edges, valleys, and where the roof meets walls or chimneys. Over time, it can crack, pull away, or rust, creating an open path for water. Run your hand along the flashing where safe, and look for gaps or loose sections that need resealing.

Pay special attention to areas around pipes, vents, and skylights, as these are common leak points. If you see dried, cracked caulk or missing sealant, you can often reapply a high-quality exterior caulk yourself. For larger gaps or damaged flashing, call the pros to avoid making the problem worse.

  • Inspect all roof penetrations: pipes, vents, skylights
  • Look for cracked, brittle, or missing caulk
  • Check for rust or corrosion on metal flashing
  • Verify that flashing is firmly attached to the roof surface

Clear Gutters and Downspouts

Clogged gutters can cause water to back up under your shingles and into your home. At least once a year, remove leaves, twigs, and debris from gutters and downspouts. Use a sturdy ladder and have someone spot you, or consider hiring a pro if you are uncomfortable with heights.

After cleaning, run water through the downspouts to make sure they drain freely. Check that gutters are pitched toward the downspouts so water does not pool. If you notice rust, holes, or sagging sections, repair or replace those parts promptly to prevent overflow and water damage to your fascia and roofline.

Check Attic for Signs of Leaks

Your attic can reveal early signs of a roof leak before it becomes visible on your ceiling. On a sunny day, go into your attic with a flashlight and look for water stains, streaks, or mold on the underside of the roof deck. Also check for light shining through any gaps, which means daylight is coming in where water can follow.

Feel the insulation for dampness and look for rusted nails or screws, which indicate chronic moisture. If you find any active leaks, place a bucket to catch drips and call the pros for leak detection and water damage mitigation. Address these issues quickly to prevent structural rot and mold growth.

Trim Overhanging Branches and Schedule Repairs

Tree branches that touch or hang over your roof can scrape shingles, drop leaves into gutters, and provide a path for rodents. Trim branches back at least 10 feet from your roofline if you can do so safely. This also reduces the risk of branch damage during storms.

If your inspection reveals damaged shingles, cracked flashing, or other issues, schedule repairs soon. Small fixes are easier and less costly than waiting for a leak to cause interior damage. For any repair work, contact local water damage pros who can assess the extent of the problem and prevent further water intrusion. Check your policy for roof repair coverage. Policies vary, and your insurer decides what is covered.

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Frequently asked questions

How often should I inspect my roof?

At least once a year, ideally in late summer before the rainy season. If you have large trees nearby or have recently had a storm, do an extra visual check. Frequent inspections help you catch small issues early, which can save you from expensive water damage repairs.

Can I repair a small roof leak myself?

For a small, isolated leak like a cracked shingle or a loose nail, you might be able to apply roofing sealant or replace a single shingle. However, if the leak is near flashing, a valley, or a penetration, or if you cannot find the source, call the pros. Incorrect repairs can make the problem worse.

What are the most common causes of roof leaks?

Common causes include damaged or missing shingles, cracked flashing, clogged gutters, and worn seals around vents or skylights. In cold climates, ice dams can form, but in mild coastal areas, heavy rain and wind are more typical. Regular maintenance addresses most of these issues before they become leaks.

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