What causes a blocked kitchen drain in a Melbourne home?

Kitchen drain blockages are almost always caused by grease, fat, and oil accumulation. When hot cooking fat poured down the drain cools in the pipe, it solidifies and progressively narrows the drain bore. Food scraps contribute additional blockage material. Over months and years, a layer builds up until flow is severely restricted. Hydro jet cleaning removes this build-up completely. Avoid pouring cooking fat down the drain to prevent recurrence.

What is a flexi hose and why are they a risk under my Melbourne kitchen sink?

Flexi hoses are the corrugated braided metal hoses connecting the kitchen mixer to the hot and cold supply lines under the sink. They degrade over time — particularly where kinked, where cleaning products contact them, or where they are more than 10 years old — and can burst suddenly without warning. A burst flexi hose under a kitchen sink can discharge at mains pressure and flood the kitchen within minutes. Replace all flexi hoses proactively at 10 years.

Kitchen Sink Plumbing Melbourne: Installation, Leaks & Upgrades

The kitchen sink is one of the most heavily used plumbing fixtures in any Melbourne home. Whether you’re dealing with a leak, installing a new sink as part of a kitchen renovation, or upgrading the tapware, here’s what you need to know.

Common Kitchen Sink Plumbing Problems

Leaking mixer tap: The most common issue. Usually caused by a worn ceramic cartridge. Replacement costs $200-$350 and eliminates the leak permanently.
Burst or split flexi hose under sink: The hot and cold flexible hoses connecting the mixer to the supply lines are a known failure point. A burst flexi hose under a kitchen sink can flood the kitchen and cabinetry within minutes. Replace at 10 years proactively.
Blocked kitchen drain: Grease, food scraps, and fat accumulate in kitchen drain pipes and cause slow drainage or blockages. Hydro jet cleaning clears most kitchen drain blockages completely.
Leaking p-trap or waste connection: The curved waste pipe under the sink can loosen at connections or crack over time, causing slow dripping into the cabinet below.
Leaking at the sink to benchtop seal: Where the sink sits into the benchtop, silicone sealant breaks down over years and allows water to seep under. This causes benchtop swelling and cabinetry damage if not addressed.

Kitchen Sink Installation in Melbourne

Installing a new kitchen sink (as part of a kitchen renovation or upgrade) involves the plumber disconnecting and removing the old sink, cutting the benchtop to the new sink dimensions if needed, installing the new sink and waste fitting, fitting the mixer, connecting hot and cold supply with new flexi hoses, and connecting the waste to the existing drain. If a dishwasher or waste disposal unit is being added at the same time, these are connected during the same visit.

Kitchen Mixer Upgrade

Upgrading a kitchen mixer is one of the best-value plumbing upgrades a Melbourne homeowner can make. A quality pull-out spray mixer improves kitchen functionality significantly. Popular styles include pull-out spray, gooseneck, and bridge mixers. Ensure the new mixer is compatible with your existing hole configuration and water pressure. Your plumber can advise on compatible options and supply the mixer if preferred.

What Does Kitchen Sink Plumbing Cost in Melbourne?

Mixer cartridge replacement costs $200-$350. New kitchen mixer supply and install costs $300-$600 depending on mixer quality. Full kitchen sink replacement (labour and standard undermount or drop-in sink) costs $450-$900. Kitchen drain hydro jet cleaning costs $280-$450.

Sedcon Plumbing — Kitchen Sink Specialists in Melbourne

We handle all kitchen plumbing across Melbourne, from mixer repairs to full kitchen renovation plumbing. Call 0468 013 012 to book a licensed plumber.