Stormwater is rain from roofs, gutters and the ground. The sewer takes waste from toilets, sinks, showers and laundries. They are separate systems. Connecting rainwater into the sewer is not allowed by Australian water authorities.
Whose pipe
Gutters, downpipes and drains on the property are usually the owner’s responsibility up to the legal point of discharge. The authority’s main is not. A plumber or drainer can tell you which part they are pricing. The postcode does not answer that.
What to say
Say whether water ponds against the house, enters through a floor waste, or only appears in heavy rain. Do not lift a pit lid if you do not know the pit. Overflow from a sewer inside the house is a different, more urgent problem than a gutter.
Get a quote
PlumberQuotes introduces you to a local plumber. It is not a plumbing contractor, and it does not promise a time.