The do it yourself resource for homeowners from home improvement professionals.

How to Seal a Gutter

Over time, gutters can shift and/or wear down, causing a leak. Because a leaking gutter can cause damage to the sides or even the foundation of your home, it shouldn’t be ignored. Luckily, most leaks can be fixed with just a few tools and a dry, sunny day. Here’s what you’ll need to seal your gutter:

What you’ll need to seal a gutter:

  • Garden hose
  • Ladder
  • Screwdriver
  • Utility knife
  • Clean cloths
  • Wire brush
  • Silicone caulk

Locating the Leak

  1. To locate the leak in your gutter, turn your hose on and aim it at the bottom of your roof so that it fills up your gutters.
  2. After several seconds, turn the water off and pay close attention to your gutters.
  3. Notice where the leak is and set something on the ground to mark the location.

Sealing the Problem

  1. Once your gutters are dry, use your screwdriver to disassemble the gutter joint by unclipping the joint clip and removing the gutter length.
  2. Next, remove the adjacent gutter length so you have clear access to the joint clip.
  3. Using a clean cloth, wipe away any dust and debris from the area.
  4. If there is any caulking material left on the sides, use your utility knife to cut it away.
  5. Next, if you see any rust, use your wire brush to scrape the area clean.
  6. After that, apply your silicone caulk around the edges of the gutter profile.
  7. Reassemble the gutter joint and make sure your joint clip is securely back in place.
  8. Use another clean cloth to wipe away any excess caulk from the area.
  9. Let dry completely.
  10. You can test out your work by running the hose again in the area of the repair and making sure the leak is gone.

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P.J. Fitzpatrick, Inc.

21 Industrial Blvd
New Castle, DE 19720

  • NJ Lic. #13VH01142000
  • DE Lic. #2009603070
  • PA Lic. #PA011323
  • MD Lic. #130457
  • Bath
  • PA# 107078
  • DE# 2013601085
  • NJ# 13VH08201500

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