Accredited plumbers for backflow testing, prevention, and valve service
Protecting your water supply with expert testing, reliable valve solutions, and full compliance reporting.
Complete backflow testing
Backflow testing
Every Geelong business has a duty of care when it comes to maintaining a clean, uncontaminated water supply. Our backflow testing services are designed to identify issues early, prevent cross-contamination,...
Backflow prevention valve
Every backflow preventer we install is rigorously tested to ensure it performs reliably under pressure. Our services include: Backflow prevention valve testing Backflow prevention testing for regulatory compliance Annual backflow...
Service & installation
Our team is fully qualified to install, test and service all types of backflow prevention devices, including double check valves and RPZ valves. We provide: Backflow device installation and replacements...
Inspection & maintenance reports
Our team conducts full backflow device inspections and offers: Annual backflow inspection reports Preventative backflow maintenance services Repairs and compliance upgrades Issuing of backflow maintenance reports for council submission Support...
Airgap testing
Airgap devices work as a physical separation between a potable water supply and potential contaminants. While simple in design, their correct installation and ongoing functionality are critical to backflow prevention....
RPZ valve installation
RPZ valves are commonly installed in hospitals, dental clinics, veterinary practices, aged care centres, and industrial sites where a high degree of water safety is essential. Our services include: Full...
RPZ valve testing
RPZ valves are essential in RPZ backflow prevention testing, designed to stop potentially harmful backflow into clean water systems. These devices must be tested at least once per year, and...
Thermostatic mixing valve testing
Our licensed technicians specialise in thermostatic valve compliance testing, ensuring your TMVs are functioning correctly and maintaining safe water temperatures. We provide: Annual or scheduled thermostatic mixing valve testing On-site...
Proudly Geelong-based, we also service clients across Victoria including Melbourne, Ballarat, Colac, Camperdown, Warrnambool, the Bellarine Peninsula and Surf Coast
Complete Backflow Testing is your trusted partner for accredited backflow testing, prevention and valve services across Geelong and surrounding regions. We specialise in helping businesses and facilities meet compliance requirements and protect public water supplies from contamination.
Our fully licensed and qualified plumbers deliver focused services tailored to commercial, healthcare and industrial properties. Whether your business needs annual testing, RPZ valve installation or a new backflow prevention device, we provide efficient and compliant solutions backed by deep industry experience.
We proudly service Geelong, Ballarat, Colac, Camperdown, Warrnambool, the Bellarine Peninsula and the Surf Coast. Our mobile team of accredited plumbers is ready to provide fast, professional support across regional Victoria.
With a commitment to clear reporting, timely submissions and expert installation, we make it easy for your site to stay compliant and operational year-round.
What we do
- Backflow testing – Annual compliance testing of all backflow prevention devices
- Backflow prevention – Risk mitigation with the installation of approved prevention systems
- Valve services – RPZ valve installation, testing and servicing for high-risk properties
- Thermostatic mixing valve testing – Ensure temperature control and cross-contamination prevention
- Airgap testing – Verification of required airgap separations
- Maintenance reporting – Full compliance documentation submitted to water authorities
We support a wide range of sectors including aged care, schools, hospitals, dental clinics, vet practices, industrial sites, childcare centres, funeral homes and service stations. Our expertise ensures each site meets local water authority standards and national regulations.
Why choose us?
Our sole focus is backflow prevention and compliance. We’re not general plumbers, we’re dedicated specialists in the field. This means we stay up to date with regulatory changes, use approved testing methods, and provide detailed documentation that meets council and water authority requirements.
All testing and valve services are completed by accredited plumbers who are licensed with the Building and Plumbing Commission (BPC) and are members of Master Plumbers and the Backflow Prevention Association of Australia (PBAA Inc.).
When compliance matters and safety is critical, Complete Backflow Testing delivers professional, reliable service across regional Victoria.
Valve Testing
Trusted for backflow and valve compliance across a diverse range of industries and sectors including:
Aged care facilities
Childcare centres
Commercial buildings
Dental practices
Funeral homes
Hospitals and healthcare facilities
Industrial sites
Schools and education providers
Service stations
Veterinary clinics
Backflow and valve testing FAQs
How does Complete Backflow Testing support facility managers with compliance?
We take the hassle out of managing backflow compliance. Each valve is fitted with a QR code, so facility managers can easily scan and check when testing is due. Our team also sends summarised reports after each service and gives a courtesy call a few weeks in advance to schedule upcoming testing. This proactive approach helps facilities stay compliant without the administrative burden.
What does backflow prevention testing involve?
Backflow prevention testing involves checking the function of backflow prevention devices to ensure they are stopping the reverse flow of potentially contaminated water into the main supply. Our accredited plumbers use calibrated equipment to measure pressure and valve performance. We also complete a compliance report and submit it to your local water authority.
Does backflow device testing disrupt water service?
In most cases, water supply is only interrupted briefly during testing, usually no more than a few minutes per device. Our team will coordinate with you to ensure any downtime is planned and kept to a minimum, especially for facilities like hospitals or aged care centres where continuity of service is critical.
What are the legal requirements for annual backflow testing?
Under Victorian regulations and water authority guidelines, any property with a registered backflow prevention device is legally required to have it tested annually by a licensed plumber. The results must be documented and submitted to the relevant water authority. This applies to high-risk sites such as healthcare facilities, industrial premises and schools.
Why choose a specialist backflow plumber over a general plumber?
Unlike general plumbers, Complete Backflow Testing focuses solely on backflow prevention and valve systems. This specialisation means we’re more efficient, accurate and cost-effective. Our licensed plumbers know when a valve can be repaired rather than replaced, saving clients from unnecessary costs and extending the life of their equipment.
How often should TMVs be serviced, and why does it matter who does the work?
TMVs must be tested at least once a year to ensure safe and compliant water temperature control. Every five years, they also require either a full replacement or internal component replacement. Many general plumbers don’t fully understand the valve’s mechanics and may unnecessarily replace the entire unit. As specialists in TMV and backflow systems, Complete Backflow Testing can identify when internal parts can be replaced. Saving you time and money while maintaining full compliance.
