How To Seal Aluminum Gutters

If possible go with a caulk that is specifically formulated for gutters.

How to seal aluminum gutters.

Apply silicone or special gutter caulking compound along the seams on the inside and outside to seal the leaks as shown above. If it is large use a piece of galvanized metal flashing. If there is a functionality issue with the aluminum where the joint is moving around no amount of sealant. One of the most common repairs we complete out in the field is to seal leaky gutters.

Gutter sealing happens from the inside of the gutter. If the metal gutter parts have rusted through you can quickly and easily patch it. You should never need to apply sealer to the outside of the gutter. If you have white gutters use a white caulk.

Patch small holes with roofing cement. If your gutters are painted in another color choose a clear caulk. Use a putty knife to spread the cement generously around. If the hole is small you can use plastic roofing cement.

Gutter caulks are designed to work in the conditions gutters face and as such they last much longer than non gutter caulks. You can buy gutter caulking compound online. Time after time we see the failed efforts of well intentioned diy ers head up the ladder and attempt to silicone and spray their way to success. This old house general contractor tom silva has a fast fix for a dripping rain gutter.

Learning how to fix leaky gutters is an easy inexpensive project you can do yourself. See below for a shopping list and tools subscribe to this old house. This means the caulk will not shrink as it cures. For sealing and joining lap seams in aluminum or vinyl gutters and downspouts we recommend a permanently flexible and water resistant sealant.

A waterproof sealing product such as ge clear gutter caulk available on amazon is easy to use. Simply squeeze into cracks and holes then apply a further coating around the entire gutter joint. Gutter sealer comes in squeezable or in calking gun tubes and the price can run you from about 5 to 10 depending on the amount and quality. It creates a powerful and waterproof protective seal making it perfect for repairing not only gutters but also doorframes windows vents toys appliances gaskets weather stripping and even clothing.

Applying sealer to rain gutter joints.