Concrete/finlock gutters - issues with join to UPVC

31 May 2022
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United Kingdom
We have a mid-terrace house, and since our neighbours replaced their finlock gutters with UPVC we're having issues with water leaking down the external wall where their new gutters are joined to our old finlock ones (we don't have a down-pipe, so ours drains into theirs).

I went up to have a look and the photo shows the connection they have done - what looks like kitchen foil, full of creases and tears. So no wonder it's leaking.
We've contacted several guttering people, but they are only interested in replacing the gutters or relining, not in fixing the actual problem which is the join between the two. We can't afford to have our gutters replaced with UPVC at the moment, and we really weren't having any issues with them until the neighbours had theirs done. We're reluctant to complain and get the neighbours' gutter people to come back as they will just bodge it again.

So my question is, does anyone know how best to join finlock gutters to UPVC to get a good result? I understand that EPDM is possibly the best way forwards, but trying to find out more before possibly attempting this myself. Otherwise, who is likely to be able to do this job without insisting on replacing the whole lot?

Many thanks for any ideas.


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Depending on the dimensions, something like this might do the trick?

They have bodged the join with flashband, can't think of any roofer who would take the job on to do a remedial repair as it wouldn't last.
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Technically, it needs to be a bodge of some sort as a proper connector does not exist. :confused:

It's just down to the perfection of the bodge into a lasting solution!

Perhaps some sort of grinding to set a plastic gutter connector into the concrete and then suitable sealing? And/or properly stuck EPDM over the joint

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