Backflow & TMV Testing
Industrial
Residential
Commercial
Backflow Prevention & TMV Testing - Brisbane & Redlands
Backflow prevention devices and thermostatic mixing valves (TMVs) are critical safety components in both residential and commercial plumbing systems. They protect water quality and ensure safe water temperatures, but only if they're working correctly and tested regularly. Copperflow is licensed to carry out backflow and TMV testing, certification, and maintenance across Brisbane and the Redlands, keeping your systems compliant and your occupants protected.
Backflow Prevention Testing
What is backflow?
Backflow occurs when water flows in the reverse direction through a plumbing system, back towards the mains water supply. This can happen due to back pressure or back siphonage, and it carries the risk of contaminating the potable water supply with chemicals, wastewater, or other hazardous substances.
Who needs backflow testing?
Backflow prevention devices are required on properties where there is a risk of contamination, including commercial and industrial sites, irrigation systems, swimming pools, medical and healthcare facilities, schools, and any property with a secondary water source connected to the mains. In Queensland, these devices must be tested annually by a licensed tester and results reported to the local water authority.
What we provide
- Annual backflow device testing and certification
- Reporting to council or water authority as required
- Backflow preventer maintenance and repairs
- New device installation and commissioning
- Compliance advice for property owners and managers
TMV Testing & Servicing
What is a TMV?
A thermostatic mixing valve (TMV) blends hot and cold water to deliver a safe, consistent outlet temperature, typically 45 degrees Celsius at sanitary fixtures and 42 degrees in healthcare settings. TMVs are required in certain installations to protect against scalding, particularly where vulnerable people are present, including aged care facilities, childcare centres, schools, and healthcare premises.
Why regular testing matters
TMVs contain internal components that wear over time. A failed or degraded TMV can deliver water that is too hot, a scalding risk, or too cold, a Legionella risk. Regular testing ensures the valve is operating within the required temperature range and that fail-safe mechanisms are functioning correctly.
What we provide
- Annual TMV testing and certification
- Temperature verification and flow testing
- TMV servicing, cartridge replacement, and repairs
- New TMV installation to AS 4032.1
- Compliance documentation for facilities managers
Who We Service
- Residential properties with irrigation or pool systems
- Commercial and retail premises
- Schools, childcare, and educational facilities
- Aged care and healthcare facilities
- Strata and body corporate properties
- Industrial sites and warehouses
Staying Compliant
Annual testing requirements are set by your local water authority and referenced in Australian Standard AS 2845. Non-compliance can result in notices from council and, more importantly, genuine risk to water quality and occupant safety. Copperflow keeps records of all testing and provides the documentation you need to satisfy compliance obligations.
Why Choose Copperflow
Backflow and TMV testing requires specific licensing. Not every plumber holds it. David is licensed to test, certify, and maintain backflow prevention devices and TMVs across Brisbane and the Redlands, and provides the compliance paperwork to match. We make it easy to stay on schedule with annual testing reminders and straightforward certification. If your body corporate property also needs roof drainage or general maintenance, see our Roofing & Guttering and Maintenance Plumbing pages.
Areas We Service
Copperflow carries out backflow and TMV testing for properties throughout Cleveland, Victoria Point, Redland Bay, Thornlands, Wellington Point, Ormiston, Birkdale, Capalaba, Alexandra Hills, Mount Cotton and Sheldon, plus Brisbane's bayside and eastern suburbs including Wynnum, Manly, Carindale, Belmont, Chandler, Cannon Hill, Carina, Morningside, Tingalpa, Norman Park, East Brisbane, Yeronga, Mount Gravatt and Salisbury.
Frequently asked questions
Annually, and results must be submitted to your local water authority, such as Unitywater or Brisbane City Council depending on your location. Copperflow handles the testing, paperwork, and reporting.
We'll advise you immediately. Minor failures can often be resolved with a service or component replacement on the same visit. If the device needs replacing, we'll provide a quote and arrange installation promptly to keep your property compliant.
Not all residential properties, but those with in-ground irrigation systems, swimming pools, or other secondary water connections to the mains are typically required to have a backflow prevention device installed and tested annually. If you're unsure whether your property requires testing, we can advise.
For general residential use, TMVs are typically set to deliver water at 50 degrees Celsius maximum at the outlet, with tempering valves set to 45 degrees at sanitary fixtures. In healthcare and aged care settings, lower temperatures apply under AS 4032.1. We'll set and verify the correct temperature for your specific application.
Yes. We'll obtain the testing history from your previous contractor where possible, take over the schedule, and ensure reporting continues without interruption.
