Why Blocked Drains Spike in Winter
Winter is prime season for blocked drains on the Central Coast. Colder weather causes grease and fat to solidify faster inside your pipes, while dormant trees send roots searching for moisture and nutrients — often finding their way into tiny cracks in your underground sewer lines. Add in the extra strain of more indoor cooking, and it's a perfect storm for blockages.
The good news is that most winter blockages are preventable with a few simple habits. Here's what we recommend to keep your drains flowing freely through the colder months.
1. Never Pour Fat or Oil Down the Sink
This is the single biggest cause of winter drain blockages. When hot fat or cooking oil goes down the drain, it stays liquid for a few metres — then hits the cold pipe walls and solidifies into a thick, sticky mass that catches food scraps, hair, and debris. Over time, this builds up into a complete blockage.
- Pour excess fat and oil into a container and let it solidify, then dispose of it in the bin
- Wipe greasy pots and pans with paper towel before washing them
- Use a sink strainer to catch food scraps before they enter the drain
Tip: Pouring boiling water down your kitchen drain once a week helps dissolve minor grease build-up before it becomes a serious blockage.
2. Be Mindful of What Goes in the Garbage Disposal
Your garbage disposal isn't designed to handle everything. Starchy foods like potato peels, rice, and pasta turn into a gluey paste that clogs pipes. Coffee grounds and eggshells also build up over time. Feed scraps gradually with cold water running, and never put fibrous or expandable foods down the disposal.
3. Book a Pre-Winter Drain Inspection
If your drains are already partially blocked with tree roots or debris, winter will only make it worse. A CCTV drain camera inspection can identify problems before they become emergencies. Our plumbers insert a high-resolution camera into your sewer line to check for cracks, root intrusion, debris build-up, and structural damage — all without digging.
- CCTV inspection identifies root intrusion, cracks, and blockages early
- High-pressure water jetting clears build-up before it causes a backup
- Preventative maintenance costs far less than an emergency callout
4. Watch for Warning Signs
Blocked drains rarely happen overnight. They build up gradually, and your drains will tell you something is wrong long before they stop flowing entirely. Watch for these early warning signs:
- Slow-draining sinks, showers, or bathtubs
- Gurgling sounds from drains or toilets
- Unpleasant odours coming from your drains
- Water pooling around outdoor grates or yard fittings
- Multiple fixtures backing up at the same time
5. Keep Your Overflow Relief Gully Clear
Your overflow relief gully (ORG) is the grated fitting outside your home that prevents sewage from backing up into your house. In winter, leaves and debris can block the grate, stopping it from doing its job. Keep the area around your ORG clear of leaves, mulch, and garden waste so it can function properly if your main line does block up.
What to Do If Your Drains Are Already Blocked
If you're experiencing slow drains, gurgling, or sewage smells, don't reach for the chemical drain cleaner. These harsh chemicals can damage your pipes, kill the beneficial bacteria in your septic system, and rarely clear anything more than a surface blockage. Instead, call a licensed plumber.
At 048 Plumber Central Coast, we use high-pressure water jetting and CCTV cameras to clear blockages quickly and safely — without damaging your pipes. We'll also identify the root cause so it doesn't happen again. Call 1300 048 048 for same-day service across the Central Coast.
