Part of my flat always feels colder and damper than the rest. It has no cavity in the walls and they always feel cold. I don't have any rising damp, but there was some penetrating damp last year until I discovered where it came from, and the walls pretty much dried out. But it still feels sort of clammy in there. I was wondering about hiring the kit and injecting the walls with that fluid (whatever it is). Would it likely help, or should I forget the idea?
Thanks
John