Sewer blockage or overflow

If your toilet won't flush or there is any wastewater overflowing at your home, you may have a leaky or blocked sewer. Find out who can help and what you should do next.

If you have wastewater overflowing anywhere on your property or any damage is being caused call 13 13 75 immediately.  This line is attended 24 hours a day, 7 days a week.

If you think it might be an internal blockage on your property plumbing – or if you’ve already called us and we’ve told you we think it is – you’ll need to call your plumber.

Read a transcript of this video (new window) 

If you don't have a preferred plumber, we can recommend a SewerSmart plumber in your area. Alternatively you can also call us on 13 13 75. We will also provide you with a customer contact reference number that will identify you as a SewerSmart customer. Please give your reference number to the SewerSmart Plumber.

If you’re not sure what the problem is, call us on 13 13 75 for help determining the issue and the next steps in fixing it.

Plumbing company

Telephone number

Service area

Plumber Reference Number

Ballantyne Plumbing

9535 4365

Metro South


On Call Building & Plumbing

0434 217 894



Your Local Man

0438 950 413



Plumbing & Gas Services

9296 2850

9242 2070

Metro East


Where does responsibility lie?

Depending on the location of the sewer blockage the responsibility may fall upon you to fix the issue. Wastewater (or sewer) blockages within the property plumbing are the property owner's responsibility. If a blockage is in the sewer main (normally outside the property), it is Water Corporation’s responsibility.

See the diagram below to show who is responsible for the sections of a property's sewer.

If it turns out the blockage is in our sewer, the plumber will call us and advise that a Water Corporation crew is required to clear the blockage. We pay the plumber a standard fee for locating a blockage.


You may also be interested in

Water problem?

Report a fault now
pipe wrench

Further investigation needed?

See common reasons for a high bill
magnifying glass