Selected Plumbing is a Perth-based commercial plumbing and hydraulic services contractor with more than 40 years of experience delivering major projects across Western Australia. Specialising in hydraulic services, underground infrastructure, commercial plumbing, fire services, gas installations and design-and-construct solutions, the business supports government, health, education, aged care and commercial developments throughout the state. With more than 500 completed projects, a team of over 60 professionals and a strong commitment to apprenticeship development, Selected Plumbing has built a reputation as one of WA’s leading commercial plumbing contractors.
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Royalty Plumbing, Gas & Electrical is a well-established Perth-based trade services company providing plumbing, gas fitting, electrical, hot water, and emergency maintenance services across the Perth metropolitan area. The business operates 24/7 and has built a strong reputation in both residential and commercial maintenance markets. It is a member of the Master Plumbers Association WA and NECA WA, with licensed plumbers, gasfitters and electricians on staff.
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Rowson’s Plumbing Services is a proudly Western Australian owned and family-operated business providing commercial, industrial and residential plumbing services throughout the Perth metropolitan area. Established in 1998, the company has built a strong reputation for professional workmanship, reliability, safety and customer service. Available 24 hours a day, seven days a week, Rowson’s provides commercial plumbing maintenance, emergency plumbing, blocked-drain clearing and CCTV inspections, gas services, hot water systems, leak detection, backflow prevention, strata plumbing and pump installation, servicing and repairs. The team is supported by ongoing in-house training and holds Master Plumbers Association membership, Waterwise Plumber recognition and WPCG accreditation. Rowson’s is a multi-award-winning business, including the 2023 MPA Business of the Year for Commercial Maintenance Plumbing and Gas, reflecting its commitment to quality, compliance and long-term client relationships.
Sanwell Pty Ltd is a Perth-based hydraulic services contractor with more than 40 years of experience delivering major commercial, industrial and civil infrastructure projects throughout Western Australia. Established in 1984, the company specialises in hydraulic services, water and sewer infrastructure, gas services, fire systems and large-scale civil works for commercial construction, healthcare, education, defence and resource sector clients. Known for its technical expertise, long-standing workforce and ability to deliver complex projects from design through to completion, Sanwell has built a reputation as one of Western Australia’s leading hydraulic services contractors.
We are an established, independent business with a proven record of delivering specialised solutions throughout Western Australia for over 45 years. With our highly skilled team, modern fleet and award-winning projects showcased state-wide, we are dedicated to providing exceptional service and value to our clients. We are family owned and operated and our reputation is built on forming strong relationships, working collaboratively to achieve unique and cost-effective results whilst maintaining the highest quality and safety standards. We offer a wealth of industry expertise and our well-recognised capabilities add value to projects from concept through to completion. The agility we are known for facilitates innovative turnkey solutions that overcome unique project challenges, saving time and providing value for money. Our client base is diverse and includes private businesses and public utilities in the resources, Defence, Commercial, Retail, Health and Community infrastructure sectors. We strive to deliver every project successfully as a trusted, reliable partner, whether we are leading as Head Contractor or supporting Australia’s most renowned Contractors.
Lupica Plumbing & Drainage Specialists is a trusted family-owned plumbing and gas fitting business servicing residential, commercial and development clients throughout the Perth metropolitan area. Established in 1978, the company is recognised for its quality workmanship, reliable service and extensive experience in new housing, commercial developments, subdivisions, strata projects and plumbing maintenance. With more than 45 years of industry experience, Lupica Plumbing & Drainage Specialists delivers practical, cost-effective plumbing solutions backed by experienced licensed tradespeople, modern equipment and a long-standing commitment to customer satisfaction.
Precision Plumbing (WA) Pty Ltd is an established Western Australian plumbing contractor based in Kewdale, providing commercial, industrial and residential plumbing services throughout Perth and regional WA. Since commencing operations in 2005, the company has delivered plumbing, gas fitting and hydraulic services for commercial construction, maintenance, industrial facilities and residential developments. Known for quality workmanship, professional project delivery and dependable service, Precision Plumbing (WA) works closely with builders, developers and commercial clients to deliver reliable plumbing solutions that meet the highest industry standards. As a member of the Master Plumbers and Gasfitters Association WA, the business remains committed to safety, compliance and excellence across every project it undertakes.
Find a Master Plumber for commercial backflow work
Protecting the water supply starts with the right installation
Commercial backflow installation is relevant when water connected to a tenancy, plant item, irrigation system, fire service, washdown area or process could flow in the reverse direction towards the potable water supply. A backflow prevention device is selected and installed to suit the hazard level and conditions of the particular connection.
For facilities, businesses and industrial sites, the decision is rarely only about fitting a valve. The proposed location, available pipework, access for future testing and maintenance, site operations and potential interruption to water services can all affect how the work is planned.
Commercial backflow prevention installation may be required around property water supplies, commercial tenancies, mechanical plant, irrigation connections, fire service connections and other higher-risk water connections. A plumbing business can consider the individual site and the service being protected before confirming an approach.
Where backflow devices may be installed
Backflow prevention devices are commonly positioned near a property boundary, water meter, fire service connection, irrigation connection, plant room, commercial tenancy supply, hose tap or other connection that requires protection. The final position needs to work with the site layout and allow for ongoing access.
Depending on the connection and device, installations may involve brass, bronze or stainless-steel valve assemblies, test taps, isolation valves, strainers, relief outlets or discharge points. Larger devices may be mounted horizontally or vertically on pipework and can need support brackets, drainage clearance and practical access for future testing.
Matching protection to the site and connection
Backflow installation is based on the risk associated with the connection being protected. A lower-risk connection may need a different form of protection from a higher-hazard connection associated with a commercial kitchen, medical facility, laboratory, chemical process, irrigation system, fire service or trade waste area.
Commercial backflow device installation can involve a reduced pressure zone device, double check valve or another suitable device. The plumbing business will need to consider the site’s risk rating, water service type, available space, device orientation, pressure loss, drainage, accessibility and future testing and maintenance needs.
On industrial sites, an industrial backflow prevention installation may also need to be coordinated with operational controls. Process impacts, isolation requirements, safety permits, environmental controls and shutdown windows can be important details when planning work.
What the installation process may involve
The exact scope depends on the site, but backflow installation can involve assessment of the connection and proposed device, alterations to pipework, installation of isolation valves and support brackets, and commissioning, testing, registration or reporting requirements. Coordination with Water Corporation or another relevant water authority may also be required.
- Confirm the duty and site layout. Identify the service, connection, process or asset requiring protection.
- Review access and isolation. Consider isolation points, surrounding services, available space, supports, falls and clearances.
- Plan the work around operations. Discuss access conditions, shutdown restrictions, inductions and any authorised approval process.
- Complete installation and commissioning activities. The work may include testing and the required registration or reporting steps.
- Keep maintenance in view. Ensure the completed arrangement can be accessed and maintained in the future.
Details that help a plumbing business assess the work
Clear information early can help a plumbing business understand the site conditions and prepare for commercial backflow valve installation. It is useful to provide what is available rather than delay an enquiry while trying to assemble every item.
- Site address, contact person and access instructions
- Water meter or service location, and whether the connection serves potable water, fire, irrigation, trade waste or process water
- The business activity, plant item or process associated with the connection
- Photos, drawings or specifications showing the proposed location and nearby pipework
- Existing device labels, asset references, manuals, service reports or maintenance history
- Access dimensions, isolation points and surrounding services
- Shutdown windows, tenant access, project timing, inductions, permits and working-hour restrictions
- The person authorised to approve work and any operational or safety concerns
Backflow work within commercial and industrial plumbing
Backflow is one part of commercial and industrial plumbing, where site access, asset criticality and continuity of operations often shape the work. A facility manager, strata manager, business owner, asset manager, maintenance coordinator or procurement team may need to coordinate the installation with building operations and other site requirements.
Where the work relates to an existing device rather than a new or replacement installation, backflow repairs and maintenance or backflow testing may be the more relevant next step. The appropriate pathway depends on the condition of the asset and the work required.
Products and names customers may encounter
Backflow products, associated valves, pipework and testing equipment can be encountered through a range of manufacturers, suppliers and supply channels. Examples include Reece, Galvins, Tradelink, RMC, AVG, Watts, Febco, Zurn, Wilkins, Enware, Kembla, Viega, Iplex, Vinidex, Testo and RIDGID.
These names may relate to backflow devices, valves, plumbing materials, distribution channels or test equipment. Their appearance in a quotation, specification or existing installation does not by itself determine which product or arrangement suits a particular site.
Choosing a plumbing business for backflow installation
Choosing a Master Plumber helps consumers make a more informed choice of plumbing business for their property or project. Find a Master Plumber connects customers with Master Plumbers and plumbing businesses associated with the Master Plumbers and Gasfitters Association of Western Australia.
When comparing options, focus the conversation on the connection being protected, the operational constraints at the site, the intended location and how the completed installation will be accessed for future work. Find a Master Plumber is backed by the Master Plumbers and Gasfitters Association of Western Australia and can be used to choose a plumbing business for your service needs.
Frequently asked questions
What is backflow installation?
Backflow installation generally involves supplying and installing a backflow prevention device to protect the potable water supply from contamination caused by reverse flow from a property, tenancy, plant item or process.
Where might a commercial backflow device be located?
A device may be installed near a property boundary, water meter, fire service connection, irrigation connection, plant room, tenancy supply, hose tap, washdown area or another higher-risk water connection.
How is the type of backflow device selected?
The device needs to match the hazard level of the site or connection. Relevant considerations include the risk rating, water service type, available space, drainage, accessibility, orientation, pressure loss and future testing and maintenance needs.
What should I provide when asking about backflow installation?
Useful details include the site address, contact person, service location, business activity or process, photos or drawings, existing equipment labels, access requirements, isolation points and any shutdown, induction or approval requirements.
Can installation affect site operations?
It can require planning around access, isolation and shutdown restrictions. Industrial sites may also need to account for safety permits, process impacts, environmental controls and critical production requirements.
Is backflow testing the same as installation?
No. Installation concerns fitting or replacing the protection arrangement. Testing and repairs or maintenance are separate backflow service pathways that may be relevant for an existing device.
Use Find a Master Plumber to choose a plumbing business associated with Master Plumbers WA for backflow installation, testing, repairs or maintenance considerations at a commercial or industrial site.