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Blocked Sewer Sydney

A blocked sewer in Sydney is a job for Cleared Now Drain Plumbing, which clears the private line from the house drain to the point of connection.

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Call Now & Get $65 Off Your First Service

Same Day Service comes as standard, with a real person on the phone 24 hours. The call-out fee is $0, and our CCTV drain camera locates the choke and its cause before a written quote.

Call now: (02) 9158 3577 300+ five-star reviews

Sewage Backing Up Into Your Home

Sewage backing up into your shower, bath or floor waste is the sign of a sewer with nowhere to go. A blocked sewer is a partial or complete blockage in a wastewater pipe that cuts the pipe's capacity until wastewater backs up and spills out. Sydney Water calls this kind of blockage a sewer choke. When the shower, toilet and laundry all slow together, the fault lies downstream in the main line, not in one fixture, according to What's The Damage. A single slow sink or shower points to a fixture blockage, which our blocked drains service clears. Sydney Water says a blockage in your private pipes needs a licensed plumber.

Call now: (02) 9158 3577
Plumber clearing a blocked toilet with a toilet pump

Blocked Sewer Drain Jobs We Clear

Cleared Now Drain Plumbing clears blocked sewer drains along the private sewer line, from the house drain to the point of connection:

  • Plumber kneeling beside his tool bag in a bathroom

    House Drain Chokes

    The house drain is the private sewer line that runs from the fixtures to the point of connection with Sydney Water's network, and it can run past the property boundary. Sydney Water says blockages normally contain a mix of tree roots, unflushable items such as wet wipes, and fats, oils and grease. Every clear starts at the inspection opening, the access point into the private line.

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  • Tree roots packed inside a broken clay sewer pipe

    Roots in Sewer Lines

    When tree roots get into small cracks in a wastewater pipe, they keep growing and slow the line until it blocks, according to Sydney Water. Left alone, roots turn a slow line into a blocked sewer pipe that barely drains. The roots come out from inside the pipe, so the line needn't be dug up. Our tree root removal service does the whole job from inside the line.

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  • New PVC sewer line laid in a trench beside a house

    Gully Spilling Outside

    Check the overflow relief gully (ORG) first, the grated sewer fitting near an outside tap. Building Commission NSW says AS/NZS 3500.2, the sanitary plumbing and drainage standard, sets the top of the gully's riser at least 150 mm below the lowest fixture on the drain. Building Commission NSW says missing that clearance can cause significant property damage when a sewer backs up or blocks. Sydney Water says heavy rain can get into sewer pipes through cracked pipes, faulty joints and stormwater connections. A gully that spills only in heavy rain points to rain getting into the pipes. Our overflowing drains page explains that rain-only pattern.

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Plumber feeding a drain cleaning cable into an outdoor inspection opening

Who Clears a Blocked Sewer Main?

Sydney Water clears blockages in its own sewer mains, while the owner's licensed plumber clears the private line, point of connection included. The owner's part of the line shows up on Sydney Water's system connection diagrams:

  • Junction Damage and Takeovers

    The junction is Sydney Water's fitting where the house line meets its pipe, and Sydney Water owns it. The owner answers for the point of connection and for any damage that tree roots or digging do to the junction or its collar. When removing roots at the point of connection damages the junction, Sydney Water may replace it at no cost to the owner. The owner still pays to dig down and expose the junction. When Sydney Water's own junction has failed, its crew checks it first. Once Sydney Water accepts responsibility, it pays to replace the junction, backfill, reconnect and restore the site, which Sydney Water calls a takeover.

  • Shared Lines and Sidelines

    If a sewer line also serves the property next door, the rules on who pays change. The City of Sydney says property owners answer for every pipe connected to their place, shared pipes included, wherever the pipes run on the land. The City encourages neighbours to share the cost when a shared pipe needs fixing. Sidelines are the pipes on Sydney Water's service location print that properties connect to, and Sydney Water owns and maintains them. When a property joins a sideline, Sydney Water's crew first checks its own pipe at the maintenance hole, an access chamber into Sydney Water's pipes. If its pipe is clear there, Sydney Water may clear the blockage from the property's inspection opening, then run a camera along the sideline to find the cause.

  • Reporting Before Digging

    Calling Sydney Water before any digging is the rule when a plumber can't clear the line or finds the sewer main blocked. Sydney Water's plumber guide starts with the private line: the plumber clears that first, with drain-clearing equipment, when the spill isn't continuous. Sydney Water's crew needs to inspect the main before anyone digs. The plumber gives a licence number and gets a work order number. Sydney Water's crew then checks its access chambers and jets its pipe with a high-pressure water jetter. If that pipe is clear and the line is still blocked, the sewer blockage sits in the private line, and the owner pays.

  • Claiming the Plumber's Bill

    Sydney Water pays back at most 2 hours of the plumber's work once it confirms the blockage was in its pipes. The plumber claims while the invoice is unpaid, sending that unpaid invoice and a timesheet. Once the owner has paid, the owner makes the claim and quotes Sydney Water's job number. Sydney Water won't pay for digging unless its authorised representative approved it first. Plumbers who report and claim this way follow Sydney Water's own process.

  • Spills From the Main

    When an overflow from Sydney Water's pipes damages a property, Sydney Water arranges the clean-up and the work needed to stop it. The owner gets a Customer Advocate, who manages the complaint, helps with the insurance process and advises what can be done without insurance.

Our Process

Clearing a blocked sewer runs in five steps, starting with the drain camera:

  1. The call

    A real person picks up at any hour and books Same Day Service.

  2. The camera

    Our CCTV drain camera goes in through the inspection opening towards the point of connection. We locate the choke and its cause before quoting.

  3. The quote

    The price reaches you in writing before work starts, on every job.

  4. Clearing the line

    We locate and clear in one visit, using the jet blaster, our high-pressure water jetter, or the electric eel, depending on what the camera shows.

  5. The check

    The camera runs the line again to show it clear to the junction. Any broken pipe it finds is quoted as a separate sewer repair. The Lifetime Labour Warranty covers the labour.
Two plumbers smiling and shaking hands with a customer at the front door

Why Choose Cleared Now Drain Plumbing

Our team is owner-led and local, born and raised in the area, and has 15+ years' experience behind the camera and the jetter. Customers have left 300+ five-star reviews to date, and four things back the work:

  • Dedicated Sewer Specialist

    We give it to you straight: what's wrong with the line and which fix suits it, before any work begins. One team member is a dedicated drain-and-sewer specialist. Our drain camera finds the choke and its cause before quoting, so the fix matches the fault.

  • Phones Answered Any Hour

    A real person answers every call, 24 hours a day. Same Day Service covers every booking, whatever hour you call.

  • Written Quote First

    Expect a $0 call-out fee. You get fair, upfront pricing, no surprises. A written quote reaches you before work starts on every job. Best Price Guaranteed applies on a written quote.

  • Contractor Licence 498750C

    Our contractor licence 498750C is issued by NSW Fair Trading for plumbing, draining and gasfitting. A fully licensed and insured team covers the work.

Areas We Service

Cleared Now Drain Plumbing brings Same Day Service to each blocked sewer job across Western Sydney, South West Sydney, Inner West and Eastern Suburbs. The same-day clear also reaches the Northern Beaches, North Shore, Hills District and Sutherland Shire.

Smiling plumber standing with his hands clasped

Book a Blocked Sewer Clear in Sydney

Sewage coming up a floor waste, or the gully spilling outside, is a problem that needs a clear today. Call (02) 9158 3577 day or night: a real person picks up and books Same Day Service, with a $0 call-out fee. Our drain camera finds the choke before the written quote, so you know the price before we start. You get $65 off your first service as a new customer. Cleared Now Drain Plumbing clears blocked sewer lines across Sydney, and every job carries Quality Workmanship Guaranteed.

(02) 9158 3577 300+ five-star reviews

Frequently Asked Questions

How Much Does Clearing a Blocked Sewer Cost in Sydney?

Clearing a blocked sewer drain in Sydney costs $170 to $575 for a standard clear, $370 typical, in What's The Damage's Sydney guide for October 2026, GST included. What's The Damage's October 2026 guide puts a clear with a CCTV inspection and jetting at $400 to $1,275, $805 typical, GST included. When the choke turns out to be in Sydney Water's main, Sydney Water clears its own pipe, and a plumber's claim covers at most 2 hours of work. Cleared Now Drain Plumbing charges a $0 call-out fee and sets the price in a written quote before any work starts.

Who Is Responsible for a Blocked Sewer in Sydney?

The property owner is responsible for the private sewer line and the point of connection, and Sydney Water is responsible for the junction and its main. The private line can run past the property boundary, and the owner's part runs with it.

What Should I Do If My Sewer Is Blocked?

Stay clear of the spill, book a licensed plumber, and ring Sydney Water on its faults line, 13 20 90, if you can't tell whose pipe is blocked. Sydney Water asks a few simple questions on that call to help find where the blockage is. The plumber you book then clears the private line. Our emergency blocked drains page covers sewage coming up inside that can't wait, step by step, including what to do before a plumber arrives.

Is Sewage Through a Floor Waste Dangerous?

Yes, sewage through a floor waste is a health risk, because wastewater carries bacteria, viruses and protozoa that can cause gastroenteritis on direct contact with the wastewater or contaminated surfaces. Keep children and pets away from the area. A same-day clear can limit how long the area stays risky.

Is Jetting Better Than an Electric Eel for a Blocked Sewer?

No, jetting isn't better for every blocked sewer, because each method suits a different choke. According to What's The Damage, an electric eel clears a main-line blockage as a standard job when fed in through the gully. Jetting slices tree roots back to the pipe wall, while mechanical tools only trim them. The camera shows which one the line needs.

How Do I Book a Blocked Sewer Clear in Sydney?

One call to (02) 9158 3577 books the clear: a real person picks up at any hour and lines up Same Day Service.