Building advice for fixing subsided extension

Gerard requested 2 quotes from Builders in Yarraville

We have an existing extension that has subsided significantly and we would like some advice from a builder as to what to do to fix the problem

REPLACE EXISTING BRICK VERANDAH
REPLACE EXISTING BRICK VERANDAH

HOME ALTERATIONS/RENOVATION
BUILDING ALTERATION WITHIN HOME. NEED WALLS KNOCKED DOWN, DOUBLE DOORS...

Dividing a room into 2 and add two doors
Dividing a room into 2 and adding 2 doors.

Builder
Will be needing a honest, reliable builder to renovate/extend current...