Blocked Sewers
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Your sewer Is usually out of sight and mind – Until it blocks!

Sewage systems play an important role in buildings and homes. It is how all your waste water including toilet water leaves your home and then goes to get treated. Treating the sewerage is protecting the environment and this is why it’s important to maintain sewer lines and the system.
But what do you do when you encounter sewage problems like blocked sewers?

A blocked sewer is a major health problem, leading to unpleasant odours and even cause flooding. You do not want untreated sewerage water flooding into your yard.
If you suspect your sewer is clogged, contact our qualified plumbers at The Blocked Drain Guys immediately. We will diagnose the problem and make the necessary repairs. The most common causes of a blocked sewer are tree roots, debris, and broken or collapsed pipes. Sometimes it is required to excavate the area to clear the blockage depending on the sewer system condition.

Need to unblock your sewers or blocked drains?
Call us before the blocked drain gets worse! Say Goodbye to Blocked Drains…

Symptoms of a Blocked Sewer line

There are some early warning signs to look out for.

  • Gurgling sounds – gurgling sounds from sinks and drains drain when it is being used and bubbling from the toilet after flushing.
  • Rising toilet water – The water level in the toilet rises and almost overflows.
  • Slow-draining water – Water drains very slowly from the sink, basin, bathtub and shower and even starts to pool.
  • Bad smell – A nasty smell is coming from the drains.
  • Overflow – Even sewage overflowing outside or inside through the drains.

How We Unblock Sewerage Drains

  • CCTV Drain Inspection: We use state-of-the-art CCTV technology to inspect your pipes and identify the cause of the blockage.
  • Hydro Jetting: We use high-pressure water jets to clear blockages and clean your pipes, freeing them from debris and buildup.
  • Chemical Drain cleaning: We typically do this in bathrooms or kitchens when hair or food waste is involved!
  • Pipe Location: We use the latest technology find where your pipes are so they can be cleared or repaired without digging up your floor.
  • Excavation: In some cases, excavation may be necessary to repair damaged pipes or remove blockages.

If you want to avoid unhealthy blocked sewer conditions in your home or business place, call us today at 03000 for fast service!

Call 0418 408 333 Get A Free Quote
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Leading Causes of Blocked Sewers

blocked drains

Foreign Objects

Children often flush all sorts of “stuff” into toilets and some objects cause massive blockages.

Tree Roots

Tree roots naturally go towards a water source and cracked or porous pipes provide water for trees!

Build Up of Grease

Fats and oils are the main cause of kitchen sink blockages. Never put fat or oil down a drain.

Toilet Wipes

Even if they say Flushable – They should not be flushed. They cause massive blockages for homes and for Sydney water

Hair

Hair in the shower and bathroom sink when combines with bodycare and shampoo becomes a big tangled smelly mass in the drain.

Sanitary Items

Tampons, pads, liners and even nappies must never be flushed. They need to be wrapped and binned.

Damaged Pipes

Things can move including your homes foundations and soil. This can move pipes out of alignment and reduce the flow.

Food Waste

Food scraps in the kitchen sink are washed down and get trapped in the built up fats and oils, it creates a solid clog.

Booking A Plumber is as Easy as 1-2-3

1

Request a Quote

Call or send a text on 0418 408 333 or submit a contact form and we’ll get back to you promptly with honest advice.

2

Book a Time

We’ll arrange a time that works for you. We show up on time and keep you informed every step of the way.

3

Job Completed

Relax knowing the work is completed safely, professionally, and cleaned up properly. Your satisfaction matters to us.

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Tips to prevent your home from having a blocked sewer are: 

  • Flush only the 3 P’s
    Poo, Pee and Paper, no flushable wipes will lead to a blocked sewer.
  • No foreign objects
    Do not allow hair, cotton swabs or other foreign objects to enter your drain.
  • No grease
    Don’t pour your cooking oils and fats down the drain. Instead, scrape them into the trash can, and always be aware of what is going down the drain. Still, if your sewer is blocked heavily, there is no way you can DIY cleaning. We can get it fixed without a fuss.
Call 0418 408 333 Get A Free Quote

Blocked Sewer FAQs

Common questions about blocked sewers answered by Sydney drainage experts

Common signs include multiple drains backing up at once, gurgling sounds from toilets or drains, sewage odors, water pooling in your yard, or toilets that won’t flush. If more than one fixture is affected, it’s usually a sewer blockage rather than a single drain issue.

Tree roots are the most common cause in Sydney, especially in older properties with terracotta pipes. Other causes include flushed wipes, grease buildup, collapsed pipes, ground movement, or foreign objects. We use CCTV cameras to identify the exact cause and location.

Yes. Tree roots seek moisture and nutrients from sewer pipes. They enter through tiny cracks or joints, then grow inside the pipe until they create a complete blockage. Figs, willows, and camphor laurels are particularly aggressive. Once roots are in, they’ll keep growing unless the pipe is relined or replaced.

Sewer clearing typically costs $250-$600 depending on the blockage location and severity. Simple blockages near the house are cheaper. Blockages deep in your sewer main or caused by tree roots may require jetting or relining. We provide upfront quotes after camera inspection.

Only if the underlying issue is addressed. If your sewer is blocked by tree roots or collapsed pipes, clearing it provides temporary relief but the problem will return. We recommend CCTV inspection to identify damage, then pipe relining or targeted repairs for a permanent fix.

You’re responsible for the sewer pipe from your house to the property boundary. Sydney Water is responsible from the boundary to the street main. If the blockage is on your side, it’s your cost. We can help identify where the blockage is located.