Unified Plumbing Pty Ltd is a Balcatta-based plumbing and gas fitting contractor delivering professional plumbing services across residential, commercial and industrial sectors throughout the Perth metropolitan area. The business specialises in commercial construction, commercial and domestic maintenance, housing construction, drainage, gas fitting, roof plumbing, backflow prevention and hot water systems. Committed to quality workmanship, safety and reliable customer service, Unified Plumbing provides practical plumbing solutions tailored to the needs of builders, businesses, property managers and homeowners. With experience across both maintenance and construction projects, the company has developed a reputation for delivering dependable and compliant plumbing services. As a member of The Master Plumbers and Gasfitters Association of WA, Unified Plumbing Pty Ltd is committed to maintaining high standards of professionalism, workmanship and industry best practice.
Repairs and Maintenance in Warwick, WA 6024
Triple T Plumbing and Civil is a Western Australian-owned contractor specialising in commercial hydraulics, plumbing and civil drainage services for major construction and development projects. Based in Balcatta and operating across Perth and WA, Triple T has more than 25 years of industry experience and delivers hydraulic and civil solutions for commercial, residential, industrial, infrastructure, aged care, health and education projects. The company provides a broad range of services including commercial plumbing, civil drainage, stormwater and sewer systems, wet fire services, siphonic drainage, rainwater harvesting, Water Corporation sewer and water extensions, and design-and-construct hydraulic packages. Led by Managing Director Peter Banovich, Triple T is known for technical capability, reliable project delivery, strong project management and a collaborative approach with builders, developers and construction partners. The business places a strong focus on quality, safety, accountability and delivering high-standard project outcomes.
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Banhams WA has established itself as a trusted service provider by combining plumbing, gas, fire protection and electrical expertise within a single business. This integrated approach allows clients to streamline maintenance, compliance and project delivery through one contractor while maintaining the highest standards of safety and workmanship. With experienced technicians, 24/7 emergency response capability and a strong focus on regulatory compliance, Banhams WA delivers reliable and cost-effective solutions for commercial, industrial and strata clients across Western Australia.
CF Plumbing Solutions Pty Ltd is a plumbing business based in Balcatta, Western Australia. Servicing primarily the Perth Metropolitan Area, the company provides plumbing and gas support for residential, commercial, construction and industrial clients. The business is listed as a Master Plumbers member and provides plumbing support across backflow, commercial construction, domestic maintenance, drainage, gas, housing construction, industrial plumbing and renovation work. With a focus on reliable workmanship, practical service and industry-standard plumbing support, CF Plumbing WA Pty Ltd assists homeowners, builders, businesses and project clients with maintenance, repairs, installations and general plumbing requirements.
West Leederville Plumbing is a family-owned and operated plumbing contractor that has been providing quality plumbing services across Perth for more than 45 years. The business specialises in commercial plumbing projects and also delivers residential plumbing, maintenance, drainage, gas and fire services throughout the metropolitan area. With a reputation built on strong workmanship, reliability and attention to detail, West Leederville Plumbing works closely with builders, businesses and homeowners to deliver professional plumbing solutions tailored to each project. As a long-established family business, West Leederville Plumbing continues to be recognised for its commitment to quality, customer service and getting the job done right every time.
Techworks Plumbing is a Perth-based commercial plumbing contractor operating within the broader Techworks Group alongside Techworks Electrical. Established in 2017, the company delivers maintenance and project services across government, education, transport and commercial sectors throughout the Perth metropolitan area. Known for its integrated plumbing and electrical capability, Techworks provides practical end-to-end solutions for facility managers, local councils, universities and infrastructure clients. The business has built a strong reputation for reliable service, collaborative culture, long-term staff retention and a strong commitment to apprenticeship training and workforce development.
Gemini Plumbing & Gas Pty Ltd is a Greenwood-based plumbing and gas business servicing commercial, industrial, construction and property clients across Perth and surrounding metropolitan areas. The business provides practical plumbing support across commercial construction, commercial maintenance, drainage, industrial plumbing and renovation-related works. As a Master Plumber member, Gemini Plumbing & Gas Pty Ltd is positioned within the Western Australian plumbing industry as a professional provider supporting builders, businesses, property owners and industrial clients with reliable plumbing, drainage, maintenance and installation services.
Rayco Plumbing Contractors has built a strong reputation within Western Australia's residential construction industry through its focus on quality, reliability and long-term builder partnerships. With established operations across metropolitan and regional WA, Rayco delivers comprehensive plumbing solutions for projects ranging from single residential homes to large-scale housing developments.
PLUMBING REPAIRS IN PERTH Looking for a trusted Perth plumber? One who values excellent customer service and quality workmanship? We’re Harleys Complete Plumbing Services in Perth. A family-owned business with over 60 years of combined plumbing experience. We cover commercial and industrial installations, maintenance and emergency repairs. whatever your plumbing needs, we’re here to help.
Find a Master Plumber for commercial backflow support
Keep backflow devices working as intended
A backflow device that is leaking, discharging, damaged or not holding pressure correctly needs informed attention. In commercial and industrial settings, the practical challenge is often bigger than the device itself: access arrangements, shutdown restrictions, tenant activity, asset records and site controls can all affect how repairs and maintenance are planned.
Commercial backflow repairs and maintenance focus on testable backflow prevention devices used to protect the potable water supply from contamination. These devices have moving parts, seals, springs, check valves, relief valves and test points. Over time, components can wear, foul with debris or stop operating correctly.
When backflow valve servicing may be needed
Regular commercial backflow maintenance may be arranged as part of asset upkeep, or it may follow a test result that identifies a fault. A device may also need attention after it has been repaired, maintained or replaced.
Useful reasons to seek assistance include:
- a device that is leaking or discharging;
- a device that fails field testing;
- visible damage to the assembly or surrounding pipework;
- concerns that the device is not holding pressure correctly;
- debris or fouling affecting internal components; and
- a need to arrange ongoing servicing or testing records for a site asset.
Testing confirms whether a device is still protecting the drinking water supply as intended. Repair work and testing are connected but distinct tasks: a licensed plumbing contractor installs, commissions and repairs backflow prevention devices, while an accredited backflow tester can test testable devices.
What repairs and maintenance can involve
The work required depends on the device condition and the result of testing. Backflow preventer maintenance can involve inspection, field testing, fault diagnosis, cleaning and repair of components, with testing after relevant work has been completed.
- commissioning tests after installation;
- annual field testing of registered testable devices;
- testing after repair, maintenance or replacement;
- cleaning strainers or internal components;
- replacement of seals, springs, check valves or relief-valve parts;
- diagnosis of a failed test result; and
- repair or replacement of leaking, damaged or non-compliant devices.
For boundary containment backflow devices in Western Australia, Water Corporation requires registration and testing at commissioning, followed by testing annually or after maintenance. Test reports must be submitted through Water Corporation’s online lodgement system by an accredited backflow tester permitted to test those devices.
Plan the work around your site
Backflow work at a business, facility or industrial site can require coordination with building operations. Before engaging a plumbing business, identify whether water can be isolated and whether a shutdown window, access arrangement or authorisation is needed. This gives the plumbing business a clearer starting point and helps them understand operational constraints before attending.
Details that can help with an enquiry
- the device make, model, size, serial number and asset ID, where available;
- the device location, plant-room reference and access instructions;
- previous test reports, service records, manuals or drawings;
- Water Corporation registration details where relevant;
- photos of the valve assembly, labels and surrounding pipework;
- whether the device is leaking or discharging, and when the issue began;
- whether water isolation is possible and any business or tenant shutdown restrictions;
- site induction, permit, parking, loading and permitted-hours requirements; and
- the person authorised to approve repairs if the device fails.
For industrial operations, it may also be important to identify process impacts, safety permits, environmental controls and critical production constraints.
Brands and equipment you may encounter
Asset labels, previous reports and supplier records may refer to a range of backflow products, components, pipe systems and test equipment. Examples customers may encounter include RMC, AVG, Watts, Febco, Zurn, Wilkins, Apollo, ValvCheQ, Bermad and Ames. Supply channels and related products may also be associated with Reece, Galvins, Tradelink, Enware, Galvin Engineering, Kembla, Viega, Iplex, Vinidex and Rehau.
Device make, model, size and serial number can be particularly useful when arranging commercial backflow repairs. Test instruments may also appear in site records under names such as Testo, Fluke, Rothenberger or RIDGID. These are examples only; the equipment present at a property and the condition of the device determine the information most useful for servicing discussions.
Choose a plumbing business with the right information in hand
Find a Master Plumber is backed by the Master Plumbers and Gasfitters Association of Western Australia. It connects customers with Master Plumbers and plumbing businesses associated with Master Plumbers WA, helping customers make a more informed choice of plumbing business for their property or project.
When comparing options for backflow repairs and maintenance, explain the device issue, site constraints and the outcome you need. Ask whether the plumbing business can consider the available device details, access conditions and timing restrictions before work is arranged. Clear records and a nominated contact person can be especially valuable where an asset is managed across multiple stakeholders.
Related backflow needs may involve Backflow Installation or Backflow Testing.
Frequently asked questions
What does backflow repairs and maintenance involve?
It can involve inspection, field testing, fault diagnosis, cleaning internal components or strainers, replacing worn parts, and repairing or replacing a leaking, damaged or non-compliant device. The required work depends on the device condition and test outcome.
Why might a backflow device fail?
Testable devices contain moving parts, seals, springs, check valves and relief valves. These components can wear, foul with debris or stop holding pressure correctly over time. A test helps identify whether the device is still operating as intended.
When are boundary containment devices tested in Western Australia?
Water Corporation requires boundary containment backflow devices to be registered and tested at commissioning, then annually or after maintenance.
Who can repair and test a backflow prevention device?
Water Corporation states that a licensed plumbing contractor must install, commission and repair backflow prevention devices. An accredited backflow tester can test testable devices.
What should I provide when requesting commercial backflow maintenance?
Provide the device details and location where available, previous reports, photos, access instructions, isolation and shutdown information, and the contact authorised to approve repairs. Site induction and permit requirements may also be relevant.
Do test reports need to be lodged?
For the relevant Water Corporation devices, reports must be submitted through Water Corporation’s online lodgement system by an accredited backflow tester permitted to test them.
Use Find a Master Plumber to choose a plumbing business for commercial and industrial backflow repairs, maintenance, installation or testing. Providing clear asset and access information can help start a more productive discussion.