Bunbury Plumbing Services is a Bunbury-based plumbing and controlled waste services business providing residential, commercial and regional plumbing support across Bunbury and the South West. Originally established in 1990 as Bunbury Plumbing Services, the business has grown from a dedicated maintenance plumbing provider into BPS (WA) Pty Ltd, offering plumbing, emergency repairs, appliance installations, solar water heaters, sewer conversions, backflow testing, septic waste services and potable water cartage. With a strong focus on reliable service, customer care and quality workmanship, Bunbury Plumbing Services supports clients with both everyday plumbing needs and larger service requirements. The business operates a modern fleet including controlled waste tankers, excavators, tip trucks, low loaders, potable water tankers and other specialist equipment, allowing the team to complete work efficiently and safely across a wide range of sites.
Tempering Valve Installation in College Grove, WA 6230
APG Plus is a South West-based plumbing, gas, electrical and facility maintenance business operating from East Picton and servicing Bunbury, surrounding towns and wider WA. Established in 1991, APG Plus provides residential, commercial and industrial plumbing and gas services, supported by experienced tradespeople, strong customer service and a broad capability across maintenance, construction, repairs and asset management. The business is well suited to homeowners, commercial property owners, builders, facility managers, industrial clients, aged care facilities, health care providers and businesses requiring reliable planned or reactive maintenance. APG Plus’ services include plumbing and drainage, gas fitting, hot water systems, backflow prevention, roof plumbing, drainage, pump stations, fire pump sets, wet fire systems, filtration, electrical maintenance and general building maintenance. With 24/7 phone availability and strong South West capability, APG Plus provides a practical one-stop service for plumbing, gas and maintenance needs.
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Gilmour Plumbing & Gas is a Bunbury-based plumbing and gas fitting business servicing residential and commercial clients across Bunbury and the South West region. The business provides practical plumbing and gas support across maintenance, renovations, hot water systems, leak repairs, gas installations, drainage and water efficiency solutions. With a focus on prompt, professional and reliable service, Gilmour Plumbing & Gas supports homeowners, businesses and property owners with quality plumbing and gas fitting services. The business combines local South West knowledge with practical trade experience across domestic, commercial and sustainability-focused plumbing work.
Solahart South West has been helping homes and businesses across the South West transition to renewable energy for more than 30 years. Based in Bunbury, the business specialises in solar hot water systems, solar power installations, battery storage solutions, heat pumps and energy-efficient hot water technologies. With a team of qualified installers and strong local knowledge, Solahart South West delivers tailored renewable energy solutions backed by industry-leading products and trusted service. Known for quality workmanship, customer support and a commitment to sustainable energy, Solahart South West continues to be one of the region's most trusted solar and hot water specialists.
Mainline Plumbing is a trusted Bunbury-based plumbing and gas fitting business servicing residential, commercial and rural clients throughout the Southwest of Western Australia. Known for its prompt response times and professional service, the company specialises in emergency plumbing, hot water systems, gas fitting, blocked drains, maintenance plumbing, septic systems and renovation projects. With a strong focus on customer satisfaction and quality workmanship, Mainline Plumbing provides reliable plumbing solutions backed by experienced tradespeople, 24/7 emergency support and a commitment to delivering practical, cost-effective outcomes for every client.
Koormal Contracting is Western Australia's largest Indigenous-owned plumbing contractor based in Bunbury, delivering specialist plumbing, gas fitting, civil drainage and asset maintenance services throughout regional and remote Western Australia. The company services the commercial, utilities, mining and government sectors, combining technical expertise with a strong commitment to Indigenous engagement, culture and community outcomes. Owned and operated by Gavin "Possum" McGuire and Michael Jones, Koormal Contracting brings together more than 50 years of combined experience in remote and regional project delivery. The business has built a reputation for quality workmanship, safety, reliability and successfully delivering complex infrastructure and maintenance projects across Western Australia.
MW Plumbing (WA) Pty Ltd is a Western Australian locally owned and operated plumbing company providing high-quality residential and commercial plumbing, gas fitting and renovation services throughout Bunbury, Davenport and the South West region. The business has established a strong reputation for quality workmanship, personalised service and attention to detail, specialising in bathroom renovations, hot water systems, plumbing maintenance and new plumbing installations. With an experienced team and customer-focused approach, MW Plumbing delivers practical, reliable and compliant plumbing solutions tailored to every project.
Plumbing is Easy with RMC! Our experienced team specialises in maintenance, repairs, and new installations, focusing on quality workmanship, honest pricing, clear communication, and dependable results. Experience excellent customer service with top quality plumbing and gas services across Bunbury, Eaton, Australind, Dalyellup, and the greater Southwest region. Free Quotes Available!
More controlled hot water where it matters
Hot water that is inconsistent or unsuitable at bathroom outlets can make everyday routines difficult. Tempering valve installation is a focused part of residential hot water work, used where hot water from a cylinder is mixed with cold water before it is delivered to bathrooms. The purpose is to provide water at a controlled temperature and reduce the likelihood of scalding.
A tempering valve is a small brass mixing valve, commonly fitted near the hot water unit or beneath a group of fixtures. It sits within the wider hot water arrangement, alongside the system that generates, stores and delivers heated water around the home.
How a tempering valve works with a hot water system
Inside the valve, a thermostatic element manages the mix of hot and cold water to hold the outlet water at a controlled temperature. Its performance depends on more than the valve alone. The existing hot water unit, nearby pipework, isolation points, available access and the layout of the fixtures all give a plumber important context.
For that reason, a hot water tempering valve installation is not simply a matter of selecting a component. The plumbing business will need to understand the duty and layout before deciding how the work should be approached.
When to discuss installation or replacement
Installation may be considered as part of hot water work where controlled bathroom delivery is needed, or where the existing arrangement is being reviewed. If a valve is already in place, its condition and service history can also be relevant. A hot water tempering valve replacement may be discussed when an existing valve has reached the end of its service life or has an internal issue.
Symptoms that can help start the conversation include cold water, water that is not reaching the expected temperature, or inconsistent temperature. Other possible concerns include blocked strainers, failed internal cartridges, incorrect installation and poor access for future maintenance. These signs do not identify the cause on their own, but they give the plumbing business a clearer starting point.
What a plumber considers before installation
Before a plumber installs a tempering valve on a hot water system, they will usually confirm the duty or layout and examine the practical conditions around the work. This may include isolation, access, supports, falls, clearances, commissioning requirements and how the finished system can be maintained.
That assessment is particularly useful when equipment is close to other services, access is restricted, or work needs to fit around occupants, tenants or a project program. Clear information early on helps the plumbing business understand the scope rather than making assumptions about the property.
- Describe what you have noticed, such as cold water, low temperatures or inconsistent delivery.
- Take photos or a short video showing the affected area, surrounding pipework and labels on existing equipment.
- Note the property address, contact person and best access instructions.
- Identify any isolation points and nearby services, where known.
- Share timing requirements, tenant access or occupancy details that could affect the work.
Useful details to provide before attendance
Good preparation can make an initial discussion more productive. Let the plumbing business know whether there are safety concerns, whether water or gas has been isolated, and whether the area is occupied. If the system is existing, include its make, model, serial number, approximate age, system type and energy source where available.
Photos can be especially useful when they show the issue, the space around the unit or fixture group, existing equipment labels and nearby services. Access dimensions and details about isolation points may also help where installation space is limited.
Hot water products customers may encounter
Different homes may have different hot water equipment and valve components. Examples customers may encounter in hot water and plumbing supply channels include Reece, Galvins, Tradelink, Plumbing Plus and Parkwood Plumbing Centre. Hot water system names may include Rheem, Rinnai, Dux, Thermann, Aquamax, Vulcan, iStore, Sanden, Stiebel Eltron, EvoHeat, Solahart and Chromagen.
For tempering valves and related temperature-control products, names customers may see include RMC, AVG, Watts and Rada. These are examples only. The relevant question is how the existing system, valve location and installation requirements fit together at the property.
Choosing a plumbing business for tempering valve work
Tempering valve work sits within a home’s hot water system, so choose a plumbing business that can consider the valve alongside the existing equipment and site conditions. Explain the issue in plain language and provide the system details and access information you have available.
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 their property or project.
Related hot water services
If the concern extends beyond the valve itself, the wider hot water system may need consideration. Depending on the system and symptoms, relevant services may include electric hot water systems, gas hot water systems, electric instant hot water, gas instant hot water, heat pump hot water systems, solar hot water systems, or tempering valve repairs and maintenance.
Where an existing valve is not performing as expected, describe the symptoms and share images of the equipment rather than assuming that replacement is the only option.
Frequently asked questions
What does a tempering valve do?
A tempering valve mixes hot water from the cylinder with cold water. In a residential hot water setup, it is used to deliver bathroom water at a controlled temperature and reduce the likelihood of scalding.
Where is a tempering valve installed?
It is usually fitted near the hot water unit or under a fixture group. The appropriate location depends on the existing system layout, access and surrounding services.
What symptoms should I mention to a plumber?
Useful details include cold water, low temperature settings, inconsistent temperature, and any visible issue around the valve or nearby equipment. Photos and equipment labels can add helpful context.
What information helps with tempering valve installation for a hot water system?
Provide the property address, access instructions, photos of the equipment and surrounding area, isolation information where known, and the hot water unit’s make, model, serial number, approximate age, system type and energy source.
Can an existing tempering valve need replacement?
Yes. An existing valve may be considered for replacement if it has reached the end of its service life or has issues such as blocked strainers or failed internal cartridges. A plumbing business can assess the existing arrangement and symptoms.