I currently have neighbours who rent next to me. The house isn’t great with sound travel but their back door is a problem. Basically the landlord installed an old wooden front door as their back door so it bangs shut which in turn causes vibrations to the rooms at the back of my house. I have got insulated slab put onto the back box bedroom and stairs wall. The kitchen and the bathroom will follow. The kitchen has the cabinets onto the party wall which makes it tricky to sound proof until I do a complete job on the kitchen.
I approached the tenants however he doesn’t speak English and I had to communicate through his 10 year old daughter which was awkward but they appeared responsive and willing to sort it but alas nothing has happened and that was months ago. They appear friendly but their days are totally out of sync with a normal working day, as in they would be outside the back smoking and chatting and going in and out till 1 am, meaning the back door backs multiple times waking me up nearly on a nightly basis.
I was wondering for the kitchen wall with the cabinets is there any good sound absorbing type pictures? Or an any other recommendation?
I was also thinking of getting a stud finder and the drilling small holes in the back wall area connecting to the party wall and spraying in expanding foam to stop the sound travelling,
The cavity walls are pumped as well.
Any recommendations as I actually do think it’s the way of the people and nothing malice in their actions, they are just none the wiser really so rather than make it an issue I would like to resolve it. I was thinking of getting the landlords numbers and asking him to bang proof the house as that would mean putting soft close onto the internal doors and put a small arm onto the back door to stop the bang, but that Avenue could cause bad feelings