If you have a burst pipe, serious leak, blocked sewer or no working toilet, search for a local emergency plumber and confirm they are licensed in your state or territory. Turn off the water at the mains, avoid electrical areas affected by water, and keep people away from sewage or flooding. For a suspected gas leak, leave the property, avoid switches and flames, and call 000 if there is immediate danger before contacting your gas distributor. Ask the plumber about call-out fees, hourly rates and likely repair costs, and request an itemised invoice.