In this article, you’ll learn:
First, watch our Home Safety Specialist, Nicole, show you what flexi-hoses look like and where to find them.
Under the sink: How to prevent flexi-hose bursts
Last updated on 14 July, 2026
If you don't know what a flexi-hose is, you're not alone. These small connectors hide under sinks and behind appliances in almost every Australian home. Most people don’t notice them unless something goes wrong – and if they fail, they can cause flooding fast.
Hi, I’m Nicole from Allianz.
Check this out: a flexi-hose. Look how how rusty that is!
They’re cheap, hidden, and when they burst, it’s like a fire hydrant going off.
You’re going to want to replace that.
Allianz Prevention helps you catch common issues before they become problems.
Search Allianz Prevention to check out tips to care for your home.
Disclaimer: Booking fee applies for Home Health Check service (‘HHC’). Available to existing Allianz direct Home & Landlord Insurance customers living in eligible Sydney, Melbourne and Brisbane postcodes. T&Cs apply. For full details of HHC service visit Allianz Prevention. HHC service delivered by AWP Australia Pty Ltd for Allianz Australia Insurance Limited. Tradespeople can be organised at homeowner’s request. Additional costs payable by homeowner.
The hidden flexi-hose risk in your home
Flexi-hoses may be small, but they play a big role in your home. They’re made from rubber tubing wrapped in braided steel, which makes them flexible. Their flexibility makes them ideal for connecting taps, toilets, dishwashers, and hot water systems in tight spaces.
Despite their small size, flexi-hoses can cause big problems if they fail. When a flexi-hose bursts, it can release hundreds of litres of water per minute. The Allianz Home Care Report (PDF 1.9 MB) states water damage is one of the most common and expensive claim types. A burst flexi-hose can cause up to $30,000 in damage if it fails while you’re away. In our Home Health Check trial, one in five flexi-hoses showed signs of rust or damage.
A new flexi-hose typically costs around $20, plus plumbing costs, but the cost of a burst hose is much higher. Costs may include replacing flooring, furniture, and belongings, depending on your cover. If you can’t live in your home, you may also need temporary accommodation while everything dries out and repairs are done.
To check what's covered and excluded in your Home and Contents Insurance, see your Product Disclosure Statement (PDS).
Four warning signs to watch out for
The good news is that ageing flexi-hoses often show signs of damage before they burst. Look out for:
1. Rust spots
Rust on the steel braiding may mean the inner rubber hose is leaking. This can worsen quickly.
2. Bulging
If the braiding pushes outward, the rubber inside has weakened. That's a sign the hose could burst soon.
3. Fraying metal
Loose or broken steel strands mean the flexi-hose is failing. Call a licensed plumber to replace it as soon as possible.
4. Kinks or bends
Sharp angles create pressure points that weaken the hose over time.
Allianz Prevention
For useful links and handy resources on caring for your home, check out Allianz Prevention.
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Disclaimer
This article has been prepared by Allianz Australia Insurance Limited ABN 15 000 122 850 AFSL234708 ("Allianz"). It is a summary of key concepts and not meant to represent the complete picture on any given matter. It is not meant to be legal advice. The information should be read in conjunction with the relevant legislation and regulations. In some cases, information has been provided to us by third parties and while that information is believed to be accurate and reliable, its accuracy is not guaranteed in any way.
Any opinions expressed constitute our views at the time of issue and are subject to change. Neither Allianz, nor its employees or directors give any warranty of accuracy or accept responsibility for any loss or liability incurred by you in respect of any error, omission or misrepresentation in this article.
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*Conditions apply
- Allianz Australia Insurance Limited ABN 15 000 122 850 AFSL 234708 (Allianz) has partnered with AWP Australia Pty Ltd ABN 52 097 227 177 to conduct the home health check on its behalf. Allianz is the insurer of your Home Insurance product
- Please refer to the Terms and Conditions. Our Home Safety Specialist will undertake reasonable fixes that can be carried out in the allocated 90-minute timeframe
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