My guttering leaks where the pieces are joined. What is the best way to make a permanent repair?

Answer 1

First never never never use a jointing mastic. They might work for a short while but as temperature changes occur it fails and you are still left with a leak.
The joint fails because the guttering was not fixed correctly in the first place. The gutters have moved and they have come away from the joint. This happens with temperature change. They expand when it is hot and contract as it gets colder. The gutter separates from the joint. You need to get the whole gutter lengths out of their joints and then push it all along so that when you put them back into the jointing pieces there is plenty of gutter caught in them. There is a line on the moulding to show you. Go look at some new ones in Wicks and you will see what I mean. Alternatively take down one length of gutter cut of 50cms, buy a new joint and fit it and put the 50cms piece back into the same joint and then into the original joint. This effectively lengthens the system by a few centimetres which is usually enough. Sometimes best to buy new joints and replace the old ones as well.
If the gutters are round then almost any joint which is round will be OK as they are made to a British standard spec. If they are square then you need to find the makers name and buy accordingly. Typical names are Marley, Osma, and Polypipe.
Hope you can understand all this and the best of luck.

Answer 2

I remember I had that problem in one of the houses I lived in.. what I used then was a caulking compound. the same that you would use around a sink or bath tub.. It comes in a tube OR.. if a lot.. buy a larger tube and apply it with one of those GUNS that you get at home depot, etc. It is BEST to apply that caulk on the seams on the INSIDE of the gutter and not on the outside.. Make a nice, "healthy" bead of that caulk...

Answer 3

Use silicone sealant (like Dow) which is guaranteed for 50 years.
Put it on the INSIDE of the gutter joint, and make sure the joint is clean and dry before you put it on and smooth it.

Answer 4

Clean where it leaks then apply Gutter Seal.

Answer 5

You can buy a gutter sealant,but make sure that all the joints are dry before you apply it.

Answer 6

I have overlapped them and used a waterproof / weather resistant caulk. If you have the opp. to overlap a PVC glue is also good but if you have wind they break vs separate. Do you have the Joints covered with the hanger?

Answer 7

plastic or iron
clean and dry the joint if you can open the joint clean and dry it then fill the joint with a silicon sealer and squeeze together apply more sealant over the joint and smooth down

Answer 8

Exterior silicone sealer. Clean both surfaces then seal with silicone

Answer 9

tube of roof and gutter sealant or replace joint

Answer 10

Caulk them making sure their perfectly dry when you do it.