5 Common Causes of Blocked Drains and How to Prevent Them

Posted by Sydney Blocked Drains Plumbing on 29 Dec 2025

Blocked drains can be a nuisance that can disrupt your daily life. They can lead to flooding, bad smells, or even health risks. If they’re not treated promptly blocked drains can lead to grave problems to the plumbing system, leading to expensive repair or even replacement.

Key Takeaways

  • Blockages to drains can cause disruption to your routine and can lead to water damage, bad odours and even health hazards.
  • Oil, grease and fat buildup can accumulate on the pipes’ walls, causing blockages. Do not pour grease down drains or make use of hot water and soap for cleaning dishes.
  • Tree roots naturally extend into the ground searching for nutrients that could cause severe damages and blockages to pipes which can cause flooding. Ensure you keep trees in the vicinity of drainage systems by pruning them.
  • Wet wipes, sanitary towels and so on. could cause unpleasant odors that can be detected around bins and toilets; just use toilet paper to flush down drain.
  • Hair

In this article, we will explore five reasons for blocked drains and ways to keep them from happening.

Cause 1. Grease, oil and Fat buildup

Oil, grease, and fat could appear as harmless substances to flush down the drain, but over time they accumulate in the pipes’ walls the pipes, creating the pipes to become blocked. When this occurs the water can’t flow freely through the drainpipes. The solution is to stop pouring grease into the drain. Alternatively, use soap and hot water during cleaning dishes since it can help break down grease-based substances.

Cause 2. Tree Roots

The tree’s roots gradually expand into the soil searching for nutrients which implies that they expand toward underground pipes. Once inside the pipes, tree roots can cause massive damage and could completely block them, leading to flooding. It’s crucial, therefore, if you are near trees that you regularly maintain their growth around drainage systems by pruning them regularly.

Cause 3: Items that are soiled

It’s easy to assume that flushing non-biodegradable items like toilet paper, wet wipes and so on. aren’t likely to cause major issues in the end, However, when a lot of these items go in toilets, they’ll pile up and push others away, that block pipes. This can cause a bad smell to be released around bins and toilets! Make sure to remember what should be flushed, and what shouldn’t (i. the only toilet paper should be flushed out).

Cause 4 Hair

Additional Information

Our 5 Star Service Promise to You

Sydney Drain Plumbing Services

Are you experiencing a clogged toilet, blocked shower drain, overflowing drains or an issue with your kitchen sink? We can help you sort out your drain blockage problem quickly and provide the following services:

  • CCTV Drain Inspections
  • Drain Clearing & Drain Cleanin
  • Drain Repairs
  • Pipe Relining
  • Blocked Stormwater Drains
  • Blocked Sewer Drains & Blocked Pipes
  • Blocked Sinks & Blocked Toilets
  • Clogged or Blocked Shower Drain

Clearing blocked drains can be difficult and it’s best to get a professional plumbing service involved to tackle it for you, To get your blocked drain in Sydney cleared today, contact Sydney Blocked Drains Plumbing now and speak to one of our friendly team members.

8 Reasons To Hire Sydney Blocked Drains Plumbing

  • 24 Hours A Day, 7 Days A Week
  • Price Up-Front, No Hidden Fees
  • Prices You Can Trust
  • Quality Workmanship Guaranteed
  • Great Reviews & Reputation
  • We’re Personable & Friendly
  • Experienced & Licenced Team
  • Get a Quote With No Obligation

We Provide 24/7 Emergency Plumbing

No one ever expects to experience a plumbing emergency, but when it does happen, you need a reliable plumbing service that can help you resolve the issue as quickly as possible.

At Sydney Blocked Drains Plumbing, we are always here for our customers, day or night, weekends or holidays. We understand that plumbing emergencies can happen at any time, and we are always prepared to help.

If you are experiencing a plumbing emergency, please do not hesitate to call us. We will dispatch one of our experienced plumbers to your home or business as soon as possible.

We will work diligently to resolve the issue and get your life back to normal as quickly as possible, contact us today.

Blocked Drains

Blocked Drains

Drain Inspection

Drain Inspection

Drain Cleaning

Drain Cleaning

Drain Repairs

Drain Repairs

About Us &

What We Do

When it comes to plumbing, you want to make sure you’re working with a qualified professional. At our company, we are licensed and insured professionals who are dedicated to providing quality plumbing services.

We’re here to help with all of your plumbing needs, such as blocked drains, CCTV drain inspections, drain repairs and pipe relining.

We understand that plumbing problems can be disruptive and expensive. That’s why we offer 24×7 emergency service, so you can get the help you need when you need it most.

We also have a 100% satisfaction guarantee on all of our work, so you can be confident that you’re making the best decision for your home.

Identify tree roots in your pipes with our cctv inspections and nabish them from your drains with our pip repairs and pipe relining.

Blocked Drain, CCTV Inspections & Pipe Relining
Make an Enquiry

Request a Quote

Fill out the form below to get in touch or call us today on
1300 915 597