Cooke & Dowsett is a national commercial and industrial plumbing business with a Western Australian office based in Malaga. The company services the construction industry across a wide range of sectors, including accommodation, commercial, defence, education, health, infrastructure, retail, sports and leisure. With a history dating back to 1992, Cooke & Dowsett has built a strong reputation for delivering professional plumbing services on major construction projects across Australia and New Zealand. The business specialises in commercial plumbing, design and construction, hydraulic systems, gas services, fire services, civil drainage, prefabrication and project management of plumbing services.
Large Projects in Yokine, WA 6060
Allscope Plumbing & Gas is a Western Australian plumbing and gas business specialising in commercial, construction, industrial and civil sector work. Established in 2021 by Carl Walsh and Matthew Edwards, the company brings more than 38 years of combined experience and provides installation, construction, upgrades, service and maintenance, preventative maintenance and project management services across WA.
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Boeing Plumbing is a Western Australian plumbing business and part of the ABN Group, providing plumbing services to ABN Group’s residential building brands and a range of external residential and commercial clients. Created in 1978 to service the needs of ABN Group’s residential builders, Boeing Plumbing has grown into one of the largest domestic plumbing operations in Western Australia. With services across maintenance plumbing, gas fitting, renovations plumbing and light commercial work, Boeing Plumbing supports builders, homeowners and commercial clients with reliable plumbing solutions backed by ABN Group’s integrated construction network. The business provides plumbing services to brands including Homebuyers Centre, Celebration Homes, Dale Alcock Homes, Dale Alcock Homes South West and Webb & Brown-Neaves
Litas Mainstone Plumbing & Gas is an award-winning Perth plumbing contractor delivering premium residential, commercial and industrial plumbing and gas fitting services across the metropolitan area. Established in 2005, the company has built an outstanding reputation for quality workmanship, innovative solutions and exceptional customer service, undertaking projects ranging from luxury home builds and renovations to large-scale commercial and industrial developments. Founded by Chris Litas and Chad Mainstone, the business combines decades of industry experience with a highly skilled team of licensed plumbers and gas fitters. Litas Mainstone is recognised for its collaborative approach, technical expertise and commitment to delivering reliable plumbing solutions that stand the test of time.
ONN1 Services is a leading Western Australian provider of integrated plumbing, gas fitting and electrical services, delivering specialist solutions across the mining, commercial, industrial and maintenance sectors. Known for its dual-trade capability, technical expertise and commitment to safety, the company specialises in commercial plumbing, industrial gas fitting, hydraulic services, preventative maintenance and mining infrastructure projects. With more than 50 skilled professionals and a strong focus on innovation, ONN1 Services delivers practical, efficient and cost-effective infrastructure solutions that minimise downtime and maximise operational performance for clients throughout Western Australia.
Jewelbic Plumbing & Gas is a Perth-based plumbing and gas contractor delivering high-quality residential, commercial and maintenance plumbing services across Western Australia. Based in Osborne Park and operating since 2014, the business has built a strong reputation for reliable workmanship, attention to detail and responsive customer service. Led by Managing Director Chad Djulbic and a team of around 30 licensed plumbers, gas fitters and trade assistants, Jewelbic delivers everything from blocked drains, burst pipes and hot water repairs through to programmed commercial maintenance, office and medical fitouts, large-scale renovations and new commercial construction projects. With more than 12 years of industry experience, Jewelbic Plumbing & Gas services residential homeowners, builders, commercial clients and facility managers throughout the Perth metropolitan area. The company is part of the broader Jewelbic Group, which also includes Jewelbic Electrical, Jewelbic Building & Maintenance and Jewelbic Brothers, allowing integrated multi-trade delivery on larger projects.
The Plumbing & Gas Guys is a Western Australia–based plumbing and gas fitting business delivering reliable residential and light commercial services across the Perth metropolitan area. The company focuses on providing responsive, high-quality workmanship with an emphasis on customer service, transparency and practical solutions. With a strong reputation for prompt service and professional communication, The Plumbing & Gas Guys supports homeowners, property managers and small businesses with both maintenance and installation needs.
Routy's Plumbing & Gas (RPG) is a proudly Western Australian-owned plumbing contractor providing commercial, civil and residential plumbing services across Perth and regional WA. Since its establishment in 2015, the company has grown into a multi-disciplinary business specialising in commercial construction plumbing, underground drainage, stormwater systems, gas fitting, excavation and preventative maintenance. With dedicated construction, maintenance and project teams supported by a modern fleet of specialised equipment, RPG delivers reliable, high-quality hydraulic solutions for projects of all sizes. Recognised for its professionalism, technical expertise and commitment to safety, Routy's Plumbing & Gas continues to build long-term relationships with builders, developers and clients throughout Western Australia.
MI Plumbers are highly skilled commercial plumbers who take pride in completing works in a safe and professional manner to the highest of standards. Our modern day approach to plumbing construction means that your project benefits from the latest materials and techniques. We are the industry leaders in high quality construction plumbing, commercial maintenance and retail fit-outs. We remain at the forefront of plumbing technology and our experience allows us to recommend the right products and installation methods for your projects. Perth’s leading facility mangers rely on us to maintain and manage their assets through our cloud based systems. We specialise in difficult, ongoing issues and provide preventative maintenance to avoid costly interruptions and repair bills. Whatever the task, we can design and install a custom plumbing solution that’s right for you.
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.
Plumbing coordination for large construction projects
On a large building site, plumbing is one part of an interconnected construction program. Water, drainage, hot water, gas, roof drainage and other hydraulic services need to align with the building design, access requirements and the work of multiple disciplines before finishes close up the spaces around them.
Large projects can involve multi-level commercial buildings, shopping centres, schools, hospitals, aged care facilities, hotels, apartment complexes, recreation centres, industrial facilities, warehouses, civic buildings and larger mixed-use developments. The practical challenge is not simply installing pipework: it is coordinating routes, risers, penetrations, plant-room space, access points and testing requirements within the wider building services network.
For builders, developers, project managers and design teams, an early, well-informed conversation with a commercial plumbing contractor can make it easier to identify the project information, staging requirements and specialist interfaces that need attention.
What can be involved in commercial construction plumbing large projects
The plumbing scope for large projects varies with the building and its design. It may involve extensive water reticulation, sanitary drainage, trade waste, stormwater, roof drainage, hot water plant, gas services, pumps, tanks, backflow, fire hydraulic interfaces, risers, plant rooms, civil drainage connections, temporary services, staged commissioning and handover documentation.
These systems often need to be considered as connected parts of the construction outcome. A change in one area, such as a plant room, ceiling space or service penetration, can affect routes, clearances, access or coordination elsewhere.
- Water and sanitary systems: multi-level distribution and drainage arrangements can require careful routing and coordination.
- Risers and plant rooms: hydraulic risers, commercial hot water plant, circulation and associated equipment need to work within the allocated building spaces.
- Drainage: stormwater, roof drainage, trade waste, pre-treatment and civil drainage connections may form distinct but related work areas.
- Services and protection: gas services, appliance connections, pumps, pressure systems, backflow containment and fire service pipework interfaces may be part of the overall scope.
- Completion activities: testing, commissioning, defects and handover packages can be important milestones near project completion.
Why project coordination matters
Commercial plumbing projects commonly bring plumbers into contact with hydraulic consultants, builders, project managers, fire contractors, mechanical contractors, electrical contractors, certifiers and multiple approval pathways. Construction programs may also set the sequence for set-out, rough-in, fit-off, testing and handover.
Coordination drawings and approved shop drawings can help clarify pipe routes, ceiling coordination, penetrations, fire collars, access panels, isolation valves, commissioning points and maintenance access before the building is finished. These details are useful because they connect the plumbing work to structural, civil, mechanical, electrical, fire and architectural requirements.
Preparing to approach a commercial plumbing contractor
A large project conversation is more productive when the project team can outline both the intended plumbing scope and the conditions around it. The following information may be useful when choosing a plumbing business through Find a Master Plumber.
- Identify the project and contacts. Provide the site address, contact person and relevant consultant contacts.
- Bring together the project documents. Architectural, structural, civil, hydraulic, fire and mechanical drawings, specifications and approved shop drawings can help establish the design intent.
- Explain the program and staging. Share the builder program, staging requirements, project milestones and any commissioning requirements.
- Flag site conditions. Include access instructions, induction requirements, parking or loading details, permitted working hours and any relevant site controls.
- Note approvals and changes. Authority approvals, variation pathways, a penetrations register, fixture schedules and plant schedules can help clarify responsibilities and decisions.
- Set out completion expectations. Discuss testing, commissioning, defects and handover documentation requirements as part of the wider project planning.
Questions worth asking about large projects
Large construction plumbing calls for a conversation that is specific to the site and program. Asking focused questions can help a project team compare the relevance of different plumbing businesses without assuming that every business offers the same services.
- How will the proposed plumbing scope connect with the current drawings and specifications?
- Which plumbing systems, interfaces and project stages need to be clarified first?
- What information is needed for service coordination and approved shop drawings?
- How should plant-room access, risers, penetrations and maintenance access be considered in the project information?
- What testing, commissioning, defects and handover documentation is expected for the project?
- Who are the key contacts for hydraulic, fire, mechanical, electrical, civil and architectural coordination?
Products and supply channels customers may encounter
Project documents, schedules and procurement discussions may refer to a range of product systems and supply channels. Examples customers may encounter include Reece, Galvins, Galvin Engineering, Tradelink, Parkwood Plumbing Centre, Caroma, Geberit, Kembla, Rheem, Rinnai, Thermann, Viega and B Press.
These names can be useful reference points when checking drawings, fixture schedules, plant schedules or nominated products. Their appearance in project information does not by itself determine what a plumbing business will supply, install or service, so the relevant requirements should be discussed against the project documentation.
Finding a Master Plumber for project work
Find a Master Plumber connects customers with Master Plumbers and plumbing businesses associated with the Master Plumbers and Gasfitters Association of Western Australia. It is backed by the Association, which has represented Western Australia’s plumbing and gasfitting industry since 1901.
Choosing a Master Plumber helps consumers make a more informed choice of plumbing business for a property or project. For a large construction project, use the project documents and questions above to have a clear discussion about the work being considered.
Related commercial construction plumbing
Some projects have a more specific construction focus. Depending on the documented scope, it may be useful to explore forward in-ground works, roof plumbing, storm water, small to medium projects, Tier 1 projects, mine site plumbing or remote work plumbing.
Frequently asked questions
What is meant by large projects in commercial construction plumbing?
Large projects generally relate to larger buildings or sites, including multi-level commercial buildings, shopping centres, schools, hospitals, hotels, apartment complexes, industrial facilities, warehouses, civic buildings and larger mixed-use developments.
What plumbing systems might form part of a large project?
The scope may include water reticulation, sanitary drainage, trade waste, stormwater, roof drainage, hot water plant, gas services, pumps, tanks, backflow, fire hydraulic interfaces, risers, plant rooms and civil drainage connections.
Why are coordination drawings important?
They can help resolve pipe routes, risers, penetrations, access panels, plant-room clearances, ceiling coordination, commissioning points and maintenance access before the building is finished.
What should be provided when discussing a large project with a plumbing business?
Useful information can include drawings, specifications, the builder program, staging requirements, consultant contacts, approved shop drawings, service coordination drawings, schedules, approvals, shutdown requirements, commissioning requirements and variation pathways.
Who may need to coordinate on a commercial plumbing project?
Coordination may involve hydraulic consultants, builders, project managers, fire contractors, mechanical contractors, electrical contractors, certifiers and other project parties.
Can Find a Master Plumber help with choosing a plumbing business?
Yes. Find a Master Plumber connects customers with Master Plumbers and plumbing businesses associated with Master Plumbers WA, helping customers make a more informed choice for a property or project.