My builder has indicated a cost of $5200 to connect new house to sewer mains on the street. This is because the standard house inclusions have upto 9m sewage allowance and we'll need about 20m on my land.
Would it be a good idea to keep a part of the existing sewage line during demolishing and cap it off further inside the property? Will the demolishing companies charge extra to leave part of the existing sewer?