Blocked sewer help in Frankston
Updated November 2026
A blocked sewer is the blockage that affects the whole house. The toilet, shower, sinks and laundry all drain into the one sewer line, so when that line blocks, everything backs up at once. Frankston Blocked Drains connects you with licensed drain plumbers who diagnose and clear blocked sewers across the City of Frankston.
We are a referral service. The plumbers we refer to are registered or licensed with the Building and Plumbing Commission.
How to tell your sewer is blocked
- Several fixtures drain slowly at the same time
- Water comes up through the shower or floor waste when the toilet is flushed
- The outside overflow gully is spilling
- Gurgling from drains around the house
- A sewage smell inside or in the yard
Why sewers block in Frankston
The oldest sewer lines in the city are in the 1950s and 1960s housing of Frankston North, Seaford and the older parts of Frankston, including Karingal. Lines that old are often clay pipe with joints that mature tree roots can enter, and after 60 or 70 years many have had roots working at them for a long time. In Carrum Downs and Langwarrin, houses from the late 1970s onwards have younger pipes, but established gardens bring roots there too. In every suburb, wipes, fat and grease do the rest.
What fixing a blocked sewer involves
- The plumber finds the inspection opening or overflow gully
- The line is cleared with an electric eel or a jet blaster
- A CCTV camera checks the cause: roots, a crack, a sag or a foreign object
- If the pipe is damaged, the options are a spot repair or pipe relining
What a blocked sewer costs to fix
As a guide, a standard clear typically runs $150 to $400, a camera with jet blasting $350 to $900, and relining $3,000 to $8,000 and up. Quotes vary, the plumber's written quote is the price that counts, and confirm GST on it. See the cost guide.
Your pipe or South East Water's
In the sewered parts of Frankston, South East Water maintains the sewer up to the connection point with your property, often near the boundary. The pipes and fittings upstream of that point are the owner's. If the fault is in their main, report it to South East Water. If your neighbours have the same problem at the same time, that is a strong hint the main is the issue. A licensed drain plumber can usually establish which side of the connection point a blockage sits on, and South East Water can tell you where your connection point is.
If your property is not connected to sewer
Some acreage blocks out this way are not connected to sewer and run an on-site system. If you are not sure, check with South East Water for your address. On an unsewered property, waste surfacing in the yard with the house drains clear usually means the on-site system needs attention.
Frequently asked questions
How do I know if my sewer is blocked rather than just one drain?
If more than one fixture is affected, or water comes up through a floor waste when you flush, it is the sewer line rather than a single drain.
Who is responsible for a blocked sewer, me or South East Water?
South East Water maintains the sewer up to the connection point with your property. The pipes upstream of that point are yours.
Why does my sewer keep blocking every few months?
Usually roots at a joint or a damaged section. A camera inspection finds the cause, and relining often ends the cycle.
Do I need a compliance certificate?
A straightforward clear usually does not attract one. Repair or relining work on a below-ground sanitary drain does, regardless of cost, and a licensed plumber issues it.