If you don't have a tempering valve installed, the answer is â ď¸ yes â ď¸ and you need to get that sorted immediately.
Australian standard safety rules require that all new hot water systems deliver water at a safe temperature to the tap, especially to protect children and the elderly.
At Bayside Plumbing, is your Sydney plumbing safety expert. We specialise in all tempering valve installation, servicing, and replacement.
We handle all your hot water services, ensuring your system meets compliance requirements and runs safely so your family is protected from scalding.
âď¸ Call Bayside Plumbing today on 1300 417 563 âď¸
Installing a tempering valve is required by law, but it’s really the most important safety device for your hot water system.
Because the law says you must store water at 60°C (to kill Legionella bacteria), that water is hot enough to cause severe burns instantly.
A tempering valve solves this problem safely. It automatically blends the super hot water from your tank with cold water before it reaches the tap.
This makes sure the water going to your bath, shower, and sink is a safe maximum of 50°C, which protects your entire household, especially children and the elderly.
Getting a new tempering valve installed or replacing an old one is a crucial safety job, so you need a professional plumber to handle it.
Our qualified plumbers can expertly fit tempering valves to any hot water system.
We make sure the process is fast, tidy, and compliant with all local Sydney plumbing regulations.

A tempering valve won't last forever. If your valve is faulty or aging, it can seize up or start mixing the water at the wrong temperature, creating a safety hazard â ď¸
We recommend replacing your valve if you notice any of these signs:
âźď¸Inconsistent Temperatures: The water temperature at the tap suddenly fluctuates, even when the shower setting hasn't changed.
âźď¸Physical Wear: You see corrosion, drips, or excessive mineral buildup around the valve itself.
âźď¸Age: The valve is approaching 5–7 years old (or longer for some models) and has never been professionally serviced or inspected.
Customers often get tempering valves and thermostatic mixing valves (TMVs) mixed up, but there's a key difference:
Tempering valves are designed for residential safety. It delivers water at a safe, maximum temperature of 50°C to your whole home.
It's simple, affordable, and usually required for new hot water systems.
A complex, precise device for commercial settings (hospitals, schools, aged care).
It has to deliver warm water at an even lower temperature 45°C and needs mandatory, annual testing and certification.

Don't ignore the risk of valve failure. Our licensed plumbers are specialists in tempering valves, ensuring safe hot water temperatures. We guarantee your hot water tank provides a consistent, comfortable water temperature and correct hot water pressure.
Call our friendly Bayside Plumbing team on 1300 417 563 or complete our quick enquiry form today.
Our plumbing Sydney service is available for a 24 hours period, 7 days a week!
0411 724 011