TMV and backflow testing services
Accredited testing to keep your water systems safe and compliant.
If you’re a restaurant, café or commercial property owner in Port Macquarie or across the Mid North Coast, Young Plumbing & Bathrooms provides certified TMV and backflow testing with clear reporting and scheduled reminders.
TMV and backflow testing you can rely on
Annual Thermostatic Mixing Valve (TMV) and Backflow Prevention Device testing is a legal requirement under NSW plumbing regulations for many commercial and public-use properties. These systems play an important role in protecting public health and maintaining safe water temperatures and potable water quality.
Young Plumbing & Bathrooms is fully accredited to test, service and maintain both TMV and backflow devices. We work with businesses and property managers across Port Macquarie and the Mid North Coast, providing compliant testing in line with Australian Standards.
When you book with us, you deal directly with a licensed plumber who understands the compliance requirements and provides clear documentation for council and health authorities.
If you’re unsure whether your property requires testing, call and talk it through.
Why choose Young Plumbing & Bathrooms for TMV and backflow testing?
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Fully accredited for TMV and backflow testing and servicing
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Testing carried out in line with AS3500 plumbing standards
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Clear compliance reports and certification provided
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Scheduled servicing and annual reminders available
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Local Port Macquarie plumber servicing the Mid North Coast
Properties that require TMV testing
TMVs are required in buildings where controlled hot water temperatures are critical for safety. Common properties include:
Childcare centres
Facilities where safe water temperatures are essential for young children.
Aged care and disability facilities
Buildings that accommodate vulnerable occupants and require strict temperature control.
Accessible and public bathrooms
Including public buildings, shopping centres, theatres, stadiums and similar facilities.
Properties that require backflow testing
Backflow prevention devices are required where there is a risk of contaminated water entering the potable water supply. Common properties include:
Commercial kitchens
Restaurants and cafés with equipment connected to water systems.
Warehouses and industrial sites
Properties with systems that may introduce contaminants.
Service stations and car washes
Sites where cross-contamination risks are higher.
Retail and commercial properties
Many commercial sites are classified as requiring backflow protection.
Common issues found during testing
Routine testing often identifies issues that can be resolved before they become compliance problems.
TMV adjustments or rebuilds
TMVs may require adjustment to maintain correct temperature control, or rebuilding if they fail testing.
Backflow device servicing
Backflow prevention devices may need rebuilding or replacement if they fail to meet testing standards. Early identification helps avoid non-compliance notices and unexpected downtime.
TMV and backflow testing FAQs
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Testing is legally required to be carried out annually under NSW plumbing regulations.
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Yes. We are fully accredited to install, test and service both TMV and backflow prevention devices.
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Yes. Compliance reports and certificates are provided after testing for council and health authority requirements.
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If a TMV or backflow device fails, we’ll explain what is required, whether that’s adjustment, rebuilding or replacement, before carrying out any further work.
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Yes. We can place your property on a scheduled service program with reminders so testing is completed on time each year. To make compliance easier, Young Plumbing & Bathrooms offers scheduled TMV and backflow servicing, including:
Annual testing reminders
Ongoing service scheduling
Record keeping for compliance audits
This is particularly helpful for property managers, hospitality venues and multi-site businesses.
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Testing is carried out methodically to meet compliance standards and minimise disruption.
1. Booking and site access
We confirm device locations and arrange access at a suitable time.
2. On-site testing
TMVs and backflow devices are tested in accordance with AS3500 plumbing codes.
3. Assessment and servicing
If a TMV requires adjustment or rebuilding, or if a backflow device fails testing, this will be explained clearly before proceeding.
4. Reporting and certification
Compliance reports and certificates are issued for your records and council or health authority requirements.
5. Scheduling and reminders
Where requested, properties can be set up on a scheduled service program with annual reminders so testing is never missed.
Need TMV or backflow testing near you?
If you manage or operate a property in Port Macquarie or across the Mid North Coast and require TMV or backflow testing, contact Young Plumbing & Bathrooms.
You’ll speak directly with a licensed local plumber who can assess your compliance requirements and schedule your testing.