How to Repair a Leaking Metal Gutter

Yes, water is running down the side of your house, and even coming through the windows.

What is the first thing you need to do?

You need to make sure exactly what the problem is. So, if it's not thundering and lightning outside, you may want to go out during the rain and see if your gutter is leaking or if it is overflowing.

If it is overflowing, wait until it stops raining, get out a ladder, go up with rubber gloves and clean out the leaves and debris.

So, what if that doesn't help?

You probably have a hole.

There are a couple of methods to stop the leak. You can replace a section of gutter or your can repair the hole.

The second option is easier and quicker.

You will need a few supplies.

The first is gutter glue. We got ours at a Lowe's hardware store. This is what the label reads: OSI Gutter Premium Sealer. Fills all seams, even the smallest. All weather formula. Permanently flexible. Self leveling. Excellent adhesion to wet or dry surfaces. Long lasting.

Sounds too good to be true, but it really lives up to its expectations. It works quickly and adheres completely. It comes in a large tube, about the size of a toothpaste tube, so you probably won't need the whole thing. Save it for other household repairs.

And a strong warning: The fumes are toxic and the glue is extremely flammable. So, only use it outside.

The glue may be enough by itself to repair small holes and glue gutter seams closed.

If you have a large hole, you will need to patch it. The material you use to patch with is up to you, but it should be durable, weatherproof, and waterproof. It should also be thin enough not to hamper the flow of water and debris through your gutter.

One ideal material is aluminum flashing, though you could use a piece of leftover gutter if you have it in your "Maybe I'll use this someday" stash.

Cut the piece of flashing small enough to fit within the trough of the gutter, but large enough to cover the hole for about an inch around. You may need to bend the flashing to fit around the bends of the gutter. Be careful. Flashing has very sharp edges and can cut you. Make sure the piece fits well before gluing it in. Follow the instructions on the glue tube.

Alternatively, you may wish to affix the patch to the outside of the gutter. Follow the instructions above.

For security, long lasting results, and peace of mind, you may wish to rivet the piece in.

After the glue dries, drill small holes all the way through the new patch and the gutter at each corner of the patch and secure the patch with rivets. Follow the instructions that come with your rivet tool.

If you wish to replace a section of gutter, please see the Time/Life series "Fix It Yourself". The volume "Roofing & Siding" has a complete guide on pages 41 through 43. (ISBN #: 0-8094-6240-0)