5 Common Causes of Blocked Drains and How to Prevent Them

Posted by Melbourne Blocked Drains Plumber on 19 Feb 2026

Blocked drains are a hassle that could disrupt your everyday life. They can cause the destruction of your home’s plumbing, unpleasant odours, and even health hazards. If they’re not treated promptly, blocked drains can cause severe problems for your plumbing system, which could lead to costly repair or even replacement.

Key Takeaways

  • Blocked drains can disrupt your routine and cause the destruction of your home, bad smells and even health dangers.
  • Fat, oil and grease buildup can accumulate on the pipes’ walls causing blockages. Do not pour grease down drains or use soap and hot water for cleaning dishes.
  • The roots of trees naturally expand into the earth to seek nutrients that could cause severe damage, and also block the pipes completely that can lead to flooding. Regularly maintain the trees surrounding drainage systems by trimming them.
  • Wet wipes, sanitary towels and so on. can create unpleasant smells emanating from toilets or bins. make sure to take care to wash your toilet paper in the toilet.
  • Hair

In this article, we’ll examine five of the most common reasons for blocked drains and the best way to avoid them.

Cause 1: Grease, Oil and Fat Buildup

Fat, grease, and oil might appear to be harmless substances to drain down the toilet, but as time passes, they build up in the pipes’ walls pipes, causing the pipes to become blocked. As a result then water cannot move freely through the drainpipes. It is best to avoid pouring grease down the drain. Or make use of hot water and soap while cleaning dishes as it helps dissolve greasy substances.

Cause 2: Tree Roots

The tree’s roots gradually extend into the ground looking for nutrients. This results in them growing toward underground pipes. Once they’re inside, the tree roots can cause massive damage and could completely stop them from flowing, causing flooding. Therefore, it is essential that if have trees nearby that you regularly maintain their growth around drainage systems, by trimming them regularly.

Cause 3: Item that has been thrown away

It’s easy to assume that flushing non-biodegradable items like the wet wipes, sanitary towel and so on. aren’t likely to cause major issues in the long run However, if a large amount of these products are flushed down toilets they will resultantly build up, pushing other items aside and that block pipes. This can result in nasty smells emanating in the vicinity of toilets or bins! Be aware of what needs to be flushed and what shouldn’t (i. the only toilet papers should be flushed away).

Cause 4 Hair

Additional Information

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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:

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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 Melbourne cleared today, contact Melbourne Blocked Drains Plumber now and speak to one of our friendly team members.

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