Blocked drains are a hassle. One day, everything’s working fine. Next, your sink’s taking forever to drain, or your toilet starts making strange noises. Blocked drains in Sydney are one of the most common plumbing problems.

This guide covers the main causes of blocked drains, what signs to watch for, and how we can fix them quickly using the right tools and experience.

What Causes a Blocked Drain?

Drains usually don’t clog up all of a sudden. In most cases, the blockage builds over time until, one day, nothing moves. Here’s what usually causes it.

Fat, Oil, and Grease (FOG)

In the kitchen, this is the number one issue. When you tip hot oil or greasy leftovers down the sink, it cools and sticks to the inside of the pipe. Over time, it thickens and catches other stuff, slowly forming a complete blockage.

Hair

Bathroom drains are often clogged by hair. It can mix up with all the debris that goes down the drain, then stick to the inside of your pipes. Showers and bathtubs are common trouble spots.

Wet Wipes and Sanitary Items

Even the ones that say they’re flushable can cause blockages. They don’t easily dissolve like toilet paper, but they may cause a big pile-up in the pipe.

Tree Roots

Roots can be sneaky. They look for water, and if they find a crack or joint in your underground pipes, they’ll force their way in. Once inside, they grow quickly and trap anything that flows past.

Foreign Objects

Sometimes, things go down the drain that just shouldn’t. Food scraps, dental floss, small toys, chunks of soap, even cotton tips. It only takes one object to get stuck and start building up a blockage.

Early Warning Signs

Blocked drains often show warning signs before they stop working completely. If you notice any of these, it’s a good idea to act early.

• Slow-draining water
• Unusual gurgling sounds from the pipes
• Bad smells coming from drains or sinks
• Water backing up in the shower or bath
• Higher water levels in the toilet after flushing

These issues may seem minor at first, but can quickly turn into something more serious.

How We Clear Blocked Drains

We don’t go in blind. Our team uses the right tools to get the job done quickly and properly. Here’s how we approach it.

CCTV Drain Inspection in Sydney

We start with a proper look inside the pipe. A small camera is fed into the drain to see what’s causing the blockage and where it is. This takes the guesswork out and helps us find cracks, roots, or build-up without digging anything up.

High-Pressure Water Jetting

This is our go-to method for clearing tough blockages. It uses water pressure to break through grease, waste, and debris while flushing out the pipe at the same time. It works on stormwater drains, kitchen sinks, and everything in between.

Electric Eel or Drain Snake

For smaller or more compact blockages, we use a rotating cable with a cutting head. It spins through the pipe and breaks apart whatever is causing the blockage. Ideal for tougher spots where jetting isn’t the best fit.

Pipe Repairs and Relining

If your pipes are broken, collapsed, or full of roots, no amount of jetting will solve the problem long term. In these cases, we suggest pipe relining or replacing sections of the pipe. Relining means we insert a new lining inside the existing pipe without digging up your yard. It gives you a fresh, clean surface without the mess of excavation.

We Don’t Just Clear Drains. We Fix the Real Problem.

There are many temporary methods that may open the drain, but we at WSG Group believe in a permanent solution. That’s why people trust us with blocked drains in Sydney. When we clear a drain, we don’t want you needing to call us again a few weeks later.

How to Prevent Future Blockages

You can avoid most drain problems by following a few simple habits. Here are some tips that make a big difference over time.

• Never pour grease, oil, or any similar substance down the sink.
• Use a strainer in bathroom and kitchen sinks to catch food scraps and hair.
• Only flush toilet paper. No wipes, no pads, no tissues.
• Keep trees and large plants away from underground pipes.
• Always try to rinse the kitchen sink with warm or hot water after doing the dishes.
• Book a CCTV drain inspection every year or two to spot early issues.

A bit of prevention goes a long way. And if anything starts acting up again, you’ll know what to look out for.

Need Help With Blocked Drains in Sydney?

If your drains are slow, noisy, or completely backed up, don’t wait. The longer you leave it, the worse it gets. WSG Group handles everything from minor blockages to full pipe repairs, and we’re quick to respond across Sydney.

Whether you need a fast fix or a proper inspection, we’re ready to help. Call us at 1800 186 597 today to book a drain clearing or a CCTV drain inspection in Sydney, and we’ll get things flowing again.