5 Common Causes of Blocked Drains and How to Prevent Them

Posted by Local Sydney Blocked Drains on 27 Mar 2026

Blocked drains are an inconvenience which can cause a disruption in your daily life. They can cause water damage, bad smells, and even health hazards. If not promptly dealt with blocked drains could cause serious problems in your plumbing system, which can lead to costly repairs or replacements.

Key Takeaways

  • Drains that are blocked can interrupt your routine and can result in the destruction of your home, bad smells, and even health issues.
  • The fat, oil and grease accumulations can stick to the walls of pipes causing blockages; avoid pouring grease down the drain or make use of hot water and soap while cleaning dishes.
  • The roots of trees naturally expand into the soil to search for nutrients, which could cause serious damage to pipes and even completely block them that can lead to flooding. Regularly maintain nearby trees around drainage systems by trimming them.
  • The flushing of non-biodegradable products like wet wipes, sanitary towels etc. can cause unpleasant smells emanating around toilets/bin areas; just use toilet paper to flush down toilet.
  • Hair

In this post, we’ll look at five common reasons for blocked drains and ways to prevent them from happening.

Cause 1: Grease, Oil and Fat buildup

Grease, oil and fat could appear as harmless substances to dump down the drain but over time they accumulate within the wall of the pipes, which causes the pipes to become blocked. When this occurs then water cannot move freely through the drainpipes. The solution is to stop spilling grease down the drain. Or utilize soap and hot water when cleaning dishes because it assists to break down greasy substances.

Cause 2. Tree Roots

The tree’s roots gradually extend into the ground searching for nutrients which means that they grow toward underground pipes. Once they’re inside, the trees roots can cause a lot of damage and may completely stop them from flowing, causing flooding. Therefore, it is essential that if have trees nearby to maintain their growth in the drainage system by trimming them on a regular basis.

Cause 3: Unwanted items

It’s easy to think that flushing non-biodegradable things like the wet wipes, sanitary towel and so on. won’t cause any significant problems in the long run However, when a lot of these products are flushed down toilets they will resultantly pile up and push others away, blocking pipes – this can cause unpleasant odors to emanate around the toilets and bins too! Make sure to remember what should be flushed and what shouldn’t (i. e only toilet paper should have to be flushed).

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 Local Sydney Blocked Drains now and speak to one of our friendly team members.

8 Reasons To Hire Local Sydney Blocked Drains

  • 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 Local Sydney Blocked Drains, 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
0488 863 348