Our licensed Melbourne plumbers install, test and maintain backflow prevention devices and thermostatic mixing valves (TMVs) for residential, commercial and healthcare properties. These systems are essential for water safety — preventing contamination and ensuring hot water is delivered at safe, regulated temperatures. We perform installation, annual testing and certification in accordance with VBA and Australian Standards, keeping your property compliant and secure.
Backflow occurs when water flows in the opposite direction through your plumbing system, allowing contaminated or non-potable water to enter the main water supply. This can cause serious health risks and breaches of water authority regulations.
To prevent this, a backflow prevention device is installed to stop any reverse flow and safeguard Melbourne’s drinking water supply. Under current legislation, properties with medium or high hazard ratings — such as commercial, industrial and multi-unit buildings — must have these devices installed and tested by a licensed plumber.
Similarly, thermostatic mixing valves (TMVs) control the temperature of hot water at outlets to prevent scalding. By automatically blending hot and cold water, they ensure consistent and safe delivery. This is especially important in facilities such as schools, aged care centres, hospitals and childcare premises where safety and compliance are critical.
At Heritage Plumbing Group, we’re licensed and qualified to install, test and certify both backflow devices and TMVs in line with Australian Standards (AS/NZS 3500) and VBA requirements.
Our services include:
Backflow device installation and commissioning
Annual backflow testing and certification
Thermostatic mixing valve installation, servicing and testing
Compliance reporting for councils and water authorities
Preventive maintenance and repair of existing systems
Backflow devices and TMVs must be tested at least once every 12 months by an authorised tester to remain compliant. Our team provides full documentation and lodges test reports as required by local councils and the VBA.
All testing is completed with precision equipment, and we ensure minimal disruption to your operations while maintaining full water safety throughout the process.
We’ve built long-term relationships with councils, facility managers, and businesses across Melbourne by providing reliable, compliant and transparent service. From installation to annual testing and repairs, we handle every stage professionally and efficiently.
Why Melbourne clients choose us:
VBA-licensed plumbers specialising in backflow and TMV systems
Annual testing, tagging and compliance certification
Expertise across residential, commercial and healthcare sites
Accurate record-keeping and reporting for audit compliance
Reliable service with minimal downtime during testing
Local team servicing all Melbourne suburbs
Whether you’re a building owner, facility manager or body corporate representative, we’ll make sure your systems are compliant, safe and maintained to the highest standards.
Call 03 9498 0458 or email info@heritageplumbinggroup.com.au to book your backflow prevention or TMV installation, servicing or compliance test. Our qualified plumbers will inspect your system, provide certification and ensure everything meets current regulations.
Frequently Asked Questions
Area we services
Need a reliable plumber near you? Heritage Plumbing Group offers expert solutions across Melbourne with fast response times and top-quality service.
Our licensed team brings decades of local expertise, ensuring efficient, long-lasting results for emergencies, maintenance, and major projects.
