Flexible hoses under taps might not seem like a big deal. They are hidden inside cupboards under your kitchen sink, bathroom vanity or laundry tub. Yet when they fail, they can cause a surprising amount of water damage in a short time.
In many homes today, flexible tap hoses are made with a plastic inner tube that carries the water, joined to metal fittings at each end. Some have a braided outer sleeve for strength, others have a polymer outer layer. No matter the style, these hoses are not designed to last forever. Heat, water pressure, movement and general wear can weaken the hose over time. In coastal areas like Geraldton, moisture and salt in the air can also speed up corrosion on metal connections.
Replacing flexible hoses before they burst is a simple way to reduce the risk of flooding inside the home.
What causes flexible hoses to fail?
Flexible hoses can deteriorate for a few reasons:
- Age and material fatigue in the inner tube
- High water pressure putting constant strain on the hose and fittings
- Tight bends or kinks behind taps causing weak points
- Moisture trapped in cupboards leading to corrosion on connections
- Poor quality parts or incorrect installation
Even if the hose itself looks fine, the fittings and thread connections can be the first place problems show up.
Warning signs it is time to replace them
If you notice any of the signs below, it is worth booking a plumber to inspect and replace the hose.
- Rust or corrosion on the fittings or connections
- Water marks, swelling or dampness inside the cupboard
- Drips around the mini stop tap or where the hose joins the tap
- A kinked hose or one that is bent sharply
- Fraying or damage to the outer sleeve, if fitted
- A bulge, soft spot or visible wear on the hose
If there is rust or a weak spot on a flexible hose, yes, it can potentially burst and cause a lot of damage. We recommend replacing it before it becomes an emergency.
How often should flexible hoses be checked in Geraldton?
There is no single replacement date that suits every home. A practical approach is to check under sinks a few times a year and include flexible hoses in your regular plumbing maintenance. If you have just bought a home and you do not know how old the hoses are, it is smart to have them checked. The same applies if you have renovated and reused older hoses, if you have a blocked drain that causes water to back up, or if hoses are installed in tight spaces where they rub or bend.
What to do if you find a leak under the sink
If the problem is related to a leaking tap, hose, gas hot water or connection, professional tap repairs & replacement can help prevent further water damage. Blocked drains can also contribute to water backing up under sinks, so it is important to address drainage issues promptly. If you see water under the sink from a burst pipe, act quickly.
- Turn off the water at the front meter
- Avoid using the tap until it is repaired
- Call a plumber to replace the hose and check for any water damage
Flexible hose replacement in Geraldton

If you would like peace of mind, book a flexible hose check with Geraldton Plumbing Services.
Frequently Asked Questions (FAQ’s)
1. Are flexible hoses under taps usually plastic now?
Yes. Many modern flexible hoses use a plastic inner tube, with metal fittings at the ends. Some have a braided outer sleeve, others have a polymer outer layer.
2. What are the warning signs a flexible tap hose needs replacing?
Look for corrosion on fittings, drips under the sink, water marks in the cupboard, kinks, fraying on any outer sleeve or bulging and soft spots on the hose.
3. Can a flexible hose burst without warning?
Yes. Some hoses fail suddenly, which is why regular checks and replacing worn hoses early is important.
4. What should I do if I find water under my sink?
Turn off the water at the front meter, then call a plumber to inspect and replace the hose.
5. Should I replace flexible hoses during a kitchen or bathroom renovation?
Yes. Renovations are a great time to replace older hoses, check valves and fittings while access is easy.
