How to fill hole in brick wall between two flats?

[maro]

Hi I was wondering if someone could help please. I’ve moved into this flat and on removing the heater from the wall discovered a big hole between my flat and the flat next door that’s filled with some messy cabling and I can see right to the back of my neighbours heater I’m wondering if anyone knows what’s going on here and if you have any idea what we would need to do.  once the cabling/electrics have been sorted out, how could we divide things up in there and also make things a bit more soundproof because currently we can each hear each other’s conversations I’m assuming because of this big gap in the wall. Thank you 

 

 

[MitchellMc]

Hi @maro,

Once you've had an electrician sort out the cables you could use bricks to add a central divider in the space. You'll need to mortar them together. They'll provide a certain amount of noise reduction between the two flats.

Alternatively, if you weren't confident in bricking up the space, you could cut some Bastion 1200 x 600 x 30mm XPS Multi Use Foam Board and jamb it in the gap as a divider. Any gaps around its perimeter can be sealed with expanding foam.

Please let me know if you have any questions.

Mitchell