Brighton - need plumber with lots of experience of fitting discharge stacks

[marshr02]

Need to fit 4 storey discharge stack. Bottom of stack will need some faffing about route wise. The stack is to be internal and straight until it gets to the basement where I'm hoping to pass it through a 13" brick wall to join up with the original external soil connection into the sewer. Aware of long radius bends etc etc. Because this stack is not on the end of a sewer run I was proposing to fit a AAV at the top to avoid passing through a flat roof.

Keen to pay for experience in this department, rather than muddle along.