A blocked drain is one of the most common plumbing problems homeowners deal with, and it has a way of happening at the worst possible moment. Whether it is a sink that drains too slowly, a toilet that is backing up, or water pooling in the shower, a blocked drain is not something to ignore. Left untreated, blockages can cause pipes to crack under pressure, create sewage backups, and lead to water damage throughout your home.
Across Melbourne’s western suburbs, blocked drains are particularly common due to a mix of older established pipes in some areas and rapidly growing new estates in others, each with their own set of drainage challenges. Here is exactly what to do.
What Causes Blocked Drains in Western Suburbs Homes?
Blocked drains across this part of Melbourne are caused by a range of factors, some related to everyday household use and some specific to the local housing stock and soil conditions.
● Tree roots are the leading cause of blocked drains in established western suburbs areas. Mature trees, particularly in older neighbourhoods, are drawn to the moisture inside sewer pipes. Older clay or terracotta pipes, common in pre-1990s construction, crack easily and give roots an entry point. Even newer homes can be affected as street trees and garden trees mature over time.
● Grease and fat buildup, which accumulates inside kitchen drain pipes over time and eventually hardens into a solid blockage
● Wet wipes, cotton pads, and sanitary products, which do not break down in water and should never be flushed regardless of how they are labelled
● Hair and soap scum in bathroom drains, particularly in family homes
● Foreign objects accidentally flushed or dropped down a drain
● Collapsed or offset pipe sections in older properties, which create points where debris catches and accumulates over time
What You Can Safely Try at Home
For minor blockages, there are a few things you can try before calling a plumber.
For kitchen sinks: Pour boiling water slowly down the drain in two or three stages to soften grease buildup. Follow with half a cup of baking soda and half a cup of white vinegar. Cover the drain for five minutes, then flush with hot water.
For bathroom drains: Use a drain snake or hair removal tool, available at any hardware store, to physically pull hair and soap residue out of the drain. These are inexpensive and effective for surface-level blockages.
For toilets: A toilet plunger with a flange, which creates a seal inside the bowl, is far more effective than a flat cup plunger. Use firm, steady plunging rather than hard, fast strokes.
Important: do not use chemical drain cleaners as a first option. These products are highly caustic, can damage older pipes and rubber seals, and are often ineffective on serious blockages. They also leave residue that creates a hazard for any plumber who attends afterward.
If the blockage does not clear within 15 to 20 minutes using these methods, it is time to call a professional.
Signs the Blockage Is Serious
Some blocked drains are surface-level and clear with simple home remedies. Others point to a deeper problem in the drain system. Call a plumber immediately if you notice:
● Multiple drains in the house are slow or blocked at the same time, which suggests the blockage is in the main sewer line rather than a single branch
● A sewage smell coming from drains, even when they appear to be flowing normally
● Gurgling sounds from drains or the toilet when water is run elsewhere in the house
● Water backing up into a shower or bath when the toilet is flushed
● Wet or sunken patches appearing in the garden above where your sewer line runs, which can indicate a collapsed pipe
How Westwater Plumbing Clears Blocked Drains
When Westwater Plumbing attends a blocked drain job, we take a systematic approach to clear the blockage properly rather than applying a temporary fix. Our service vehicles are fully stocked, so we arrive prepared regardless of which suburb we are attending.
CCTV drain camera inspection: We run a small camera through the drain to identify exactly what is causing the blockage and where. This eliminates guesswork and ensures the right solution is applied first time.
High-pressure water jetting: A high-pressure water jet is the most effective method for clearing grease, debris, and roots from drain pipes. It cleans the full pipe interior rather than simply pushing the blockage further along.
Root cutting: For root intrusions, which are common in established western suburbs properties, we use a rotating cutter that removes roots from inside the pipe. Where root entry points are significant, we recommend relining or repair to prevent recurrence.
Pipe relining: Where older pipes have multiple cracks or root entry points, pipe relining inserts a structural liner inside the existing pipe, restoring it to full function without excavation.
