Emergency blocked drains in the Adelaide Hills
Updated October 2026
Some drain problems can wait until Monday. Sewage coming up through the shower drain is not one of them. If waste water is backing up inside your home, a toilet is overflowing, or stormwater is rising towards the house, you need a licensed drain plumber now, not a booking next week.
Adelaide Hills Blocked Drains connects you with licensed local drain plumbers who take emergency and after-hours work across the Hills, from Stirling, Crafers and Aldgate through Hahndorf and Woodside to Mount Barker, Birdwood and the Torrens Valley. Send the quote form with a note that it is urgent and your details go straight through.
What counts as a drain emergency
- Sewage backing up into the house through floor drains, showers or toilets
- Every drain in the house blocked at once, which points to the main line or, on a septic system, the tank
- A toilet overflowing that will not stop with the water off
- Stormwater pooling against the house or running down a steep driveway towards the garage
- Effluent surfacing on the ground above a septic soakage or irrigation area
- Strong sewage smell inside with gurgling from multiple drains
One slow sink is a booking. Waste water where you live is an emergency.
What to do right now
While you wait for a call back, three things limit the damage. Stop putting water down the drains, so no washing machine, dishwasher or showers. If sewage is surfacing at an outside gully, that gully is doing its job by keeping the overflow outside, so do not cap it. Keep people and pets away from any surfaced waste water, and if it has touched carpets or floors inside, photograph everything before cleaning for your insurer.
If you are on a septic system, keeping water out of the drains matters even more, because every litre you add goes into a tank that may already be the problem. Surfaced effluent in the yard should be fenced off from children, pets and stock until it has been dealt with.
What emergency drain work costs
After-hours call-outs cost more than booked weekday work, and that is true of every plumber in South Australia. A standard clear that costs $150 to $400 in business hours will sit higher at night or on a Sunday, and a late call to the outer Hills carries the travel as well. The licensed plumbers we work with still quote before they start, so you know the price up front. If the problem can safely wait until morning, they will tell you that too, because a booked morning job is cheaper than a midnight one.
Blocked pipe or full tank
In an emergency the first question on an unsewered property is whether the pipe is blocked or the tank is full. The symptoms look similar from inside the house. A drain plumber can establish which it is, clear the pipe if that is the fault, and tell you straight if what you actually need is a tanker. Pumping out a septic tank is a liquid waste contractor's job, not a plumber's, and knowing that early saves a wasted call-out.
On mains sewer, if every fixture in the house is backing up, the blockage is usually in the main line between the house and the SA Water connection point. If your neighbours have the same problem at the same time, the fault may be in SA Water's main itself. On a council CWMS township line, the same logic applies with the council in SA Water's place. A licensed drain plumber can usually establish which side of the connection the problem sits on, which can save you the whole bill.
Storms and winter nights
Most of the emergency calls in the Hills come in the wet months. Steep ground, saturated soil and leaf-packed pits turn a marginal drain into a flood in an hour, and the same wet ground pushes septic soakage areas past what they can take. If your drains struggled in the last downpour, a clear and a camera in a dry week costs far less than a 2am call-out in August.
Frequently asked questions
Can I get a plumber in the middle of the night?
Often, yes. Many of the plumbers we work with take after-hours calls. Expect a higher call-out rate, quoted before work starts, and allow for travel time in the outer Hills.
Is sewage backup dangerous?
Treat it as contaminated. Keep children and pets away, wear gloves if you must touch anything, and wash thoroughly afterwards. Professional cleaning is worth it for any indoor spill.
Will my insurer cover an overflow?
Many home policies cover sudden water damage inside the house, though usually not the drain repair itself. Photograph the damage before cleanup and check your policy.
Effluent is surfacing in the yard. Who do I call?
Request a quote and say what you are seeing. A drain plumber will check whether a blocked line is the cause. If the tank is full or the soakage area has failed, that points to a liquid waste contractor or a wastewater installer, and the plumber will say so.