What You Must Know About Flexi Hoses

Using a wrench to loosen a flexi hose fitting.

Those humble looking flexible rubber or stainless-steel braided pipes that are lurking underneath your bathroom and kitchen sinks, aren’t in fact humble. Did you know that they are responsible for quite a large portion of water damage and insurance claims? We don’t want this to happen to you and your property, so please keep reading!


silver flexihose burst pipe with a purple and blue striped backgroundA damaged flexi hose.

When it comes to flexible braided pipes (or simply, ‘flexi hoses’), it is always important that you get these checked regularly to avoid hefty expenses from unexpected water damage. Since flexi hoses are often hidden away and not known about, they can be the ticking time bomb you don’t see coming.


Where would you typically find flexi hoses?

  • Kitchen sinks
  • Bathroom basins
  • Toilets
  • Dishwashers
  • Washing machines

Collage of different household areas including kitchen, bathroom, dishwasher and laundryWhere you would commonly find a flexi hose. L to R: kitchen sinks, bathroom (basins & toilets), dishwashers, washing machines

When and why flexi hoses can burst?

You may have heard stories about people coming home or waking up to realise that their house has been flooded and their walls, cupboards, appliances, and furniture is water damaged.

This is often caused by a burst flexi hose. Like most things, flexi hoses come with an expiry date, usually around five to ten years after installation. Over time water pressure and other factors can lead to weakness in the hose.

Unfortunately, there’s a high chance of a burst occurring while nobody is at home, or while you are asleep. The water pressure in the pipes may build up when no one has opened a tap or flushed a toilet for some time.

Under view of a toilet plumbing connectionL to R: Flexi hoses connected to a toilet and a kitchen sink.

Other factors that can trigger a burst in a flexi hose

  • Rusting spots around the hose
  • Stretched, sharp bends or twisted hoses
  • Issues with installation
  • Quality of the materials
  • Household cleaning products stored near the hoses
  • Unusually high water pressure

Under view of a toilet plumbing connectionTwisted and rusted flexi hoses.

How to avoid a burst

Look after your flexi hoses by taking note of any changes in the hose’s colour or shape, and by having each flexi hose checked by a professional plumber biannually.

A consultation from a plumber could save you waking up or coming home to a flooded and damaged house, and can save you thousands of dollars in repairs.

Additionally, read what one insurer had to say about flexi hoses.


Learn more about flexi hose bursts:

Flexi hoses are responsible for more than 20% of water damage claims - The Sydney Morning Herald

The common household pipe that could cost you thousands in damages - RACQ