Dry fix bonding gutter

Avonvalley

I would really appreciate some advice please thank you . I live in a mid terraced house and have had a canopy and canopy apex built across the front of my house and above the front door . As the one neighbour and I shared a roof covering the canopy over our front doors the  builder doing the work has installed a dry fix bonding gutter on the party line where the two roofs join but although my side looks fine on the join my next door neighbours side looks a mess as there is a gap showing under three rows of tiles and although I have been reassured that it’s water tight visually I am not happy to leave things as they are for my neighbour . I have also attached a photo. Could anyone tell me what they think please 

DiamondLil

You need to post this on the 'In My Home' forum.

Avonvalley

That will be my third attempt at getting this question in the right place 😩😩

DiamondLil

https://forums.moneysavingexpert.com/categories/in-my-home-includes-diy-moneysaving