About Us
We help Australians understand their water - and do something about it.
Not with pressure. Not with fear. But with a free assessment, an easy explanation, and a system matched to your house, apartment, or workplace.
WHY ONE WATER EXISTS
We started OneWater after seeing too many Australians left uncertain, pushed toward products they didn’t fully understand, given jargon instead of answers, and left wondering if they’d made the right call.
We believe the decision to filter your water should feel calm and informed. Not rushed, confusing or like you’ve been sold something.
So we built a business around a different approach: start with understanding, recommend what’s right, and stay accountable long after installation day.
PART OF ONE GROUP AUSTRALIA
OneWater Australia is part of OneGroup Australia. With Australians owned brands like OneSolar Australia, OneProperty Australia, and OneFinance Australia under the umbrella, we share the same operating principles across the group:
- Long-term outcomes over short-term wins
- Transparency over pressure
- End-to-end delivery without cutting corners
When you deal with OneWater, you're dealing with an accountable organisation.
PROUDLY WATERMARK CERTIFIED
WaterMark certification is an Australian standard that ensures plumbing and water products meet strict safety and quality requirements. Our systems are certified products, tested to comply with national regulations and are safe for use with drinking water systems. In short, it’s a mark of compliance, safety, and trust.
HOW WE WORK
We start with a simple conversation and take the time to understand your home, your water, and what matters most to you, without overcomplicating things.
From there, we design a tailored water filtration system and guide you through installation, setup, and ongoing support - we don’t install and disappear! The result is better water throughout your home, with a process that feels clear, with ongoing support.
OUR COMMITMENT
We’re committed to honest advice and transparent recommendations, even when that means suggesting a simpler solution than you expected.
If you choose to work with OneWater, you’ll have a team invested in your water quality long after installation day.
In short, We’re here to help you make a confident decision at your pace.
CURIOUS ABOUT YOUR WATER? LET’S CHAT.
Book a free water assessment and we’ll come to you. No obligation. Just a clear, honest picture of what’s in your water and what you might want to do about it.
What is whole-home water filtration?
A whole-home water filtration system treats the water at the point it enters your home. This means filtered water is delivered to every tap, including showers, bathrooms, laundry, and kitchen, not just one drinking tap.
How is this different from an under-sink or jug filter?
Under-sink and jug filters only treat drinking water at a single point.
Whole-home systems:
- Improve water quality throughout the entire house
- Help protect plumbing and appliances
- Provide filtered water for bathing and cleaning, not just drinking
Many households choose whole-home filtration for the broader lifestyle and household benefits.
Will filtration reduce my water pressure?
When properly specified and installed, a whole-home system should not noticeably reduce water pressure. Our systems are designed for Australian homes and assessed against your existing plumbing and usage needs.
Is Australian tap water safe?
Australian tap water is regulated, but "safe" doesn't always mean ideal.
Water quality can vary by region, age of infrastructure, plumbing materials, and treatment methods. Many households notice issues with taste, odour, skin irritation, or mineral build-up, which is often what prompts people to seek filtration.
A water assessment helps clarify what's actually coming into your home.
What's commonly found in tap water?
Depending on location, tap water may contain:
- Chlorine or chloramine used for disinfection
- Sediment and minerals
- Heavy metals from older pipes
- Agricultural or industrial by-products in some areas
Not every home has the same issues. That's why when we start with understanding your specific water supply.
How do I know if my water needs filtration?
If you've noticed changes in taste, smell, skin dryness, limescale, or you simply want greater peace of mind, it's worth checking. Many concerns aren't visible, which is why an assessment is the best first step rather than guessing.
Why choose OneWater Australia?
Customers choose OneWater because we offer:
- Clear explanations without pressure
- End-to-end service from one experienced team
- Systems designed for Australian conditions
- Ongoing support beyond installation
We focus on helping you make the right decision for your home, not a rushed one.
What's the best next step?
If you're curious about your water and want clear answers, the best next step is a conversation.
Book a free water assessment
No obligation. No pressure. Just expert guidance you can trust.
How much does a whole-home water filtration system cost?
Cost depends on factors such as:
- Your water supply
- Household size and usage
- System configuration
We don't believe in giving generic pricing before understanding your needs. A water assessment allows us to provide clear, accurate recommendations.
Is the assessment really obligation-free?
Yes. The assessment is about understanding your water and explaining your options. There's no requirement to proceed.
Are there ongoing costs?
Ongoing costs typically relate to filter replacement and maintenance. These are explained transparently so you can make an informed decision.
Can filtered water help with skin and hair?
Many customers report that filtered water feels gentler on skin and hair, particularly during showers and baths. Reducing chlorine and other irritants can be beneficial, especially for sensitive skin.
Individual experiences vary, which is why expectations are discussed clearly during assessment.
Does filtered water taste different?
Yes. Many people notice an improvement in taste and smell after filtration, which often leads to drinking more water and reducing reliance on bottled water.
What happens during installation?
Installation is handled by our experienced team and typically involves:
- Preparing the system
- Integrating it into your existing plumbing
- Testing and commissioning
We explain what to expect beforehand and aim to minimise disruption to your home.
How long does installation take?
Installation time varies depending on the system and your home, but it's usually completed within a day. We'll confirm timing during your assessment.
Do I need to be home during installation?
Yes, someone will need to be home during installation. We coordinate timing with you to make the process as convenient as possible.
How often do filters need replacing?
Filter replacement schedules vary depending on system design and water usage. We'll explain the recommended schedule clearly and provide ongoing support to keep your system performing as intended.
Is ongoing maintenance required?
Like any home system, periodic maintenance is important. We provide guidance and support so you're never left wondering what needs to be done or when.
What happens if I move house?
In many cases, systems can be relocated. This can be discussed during your assessment so you understand your options upfront.
How are your systems designed?
Our systems are designed specifically for Australian water conditions. They meet Australian standards and certification requirements and are selected based on suitability, not one-size-fits-all packages.
Are your systems compliant and certified?
Yes. All systems are specified to meet relevant Australian standards and certification requirements. Compliance is a non-negotiable part of how we operate.
Do I need to understand the technical details?
No. We explain everything in plain English and answer any questions you have. Technical detail is available for those who want it, but you never need to become an expert to feel confident in your decision.
Concerned about what's in your tap water?
Concerned about what's in your tap water?
Many people start here. Not because they're alarmed, but because they want clear, factual answers.
Tap water quality in Australia can vary by region, infrastructure, and source. Below are some of the most common substances people ask us about.
How do I know if my water needs filtration?
If you've noticed taste or odour issues, dry skin after showering, limescale on appliances, or you simply want greater peace of mind, it's worth checking. Many water quality concerns aren't visible, which is why understanding your specific supply matters.
PFAS (Per- and polyfluoroalkyl substances)
PFAS are often referred to as "forever chemicals" because they don't easily break down in the environment.
They have been detected in some Australian water supplies, particularly near industrial sites, airports, and firefighting training areas. While levels are regulated, many households prefer to reduce long-term exposure where possible.
A water assessment helps determine whether PFAS reduction is relevant for your area and household.
Chlorine
Chlorine is commonly used to disinfect drinking water and prevent harmful bacteria.
While effective for treatment, chlorine can:
- Affect taste and smell
- Contribute to dry or irritated skin and hair
- React with organic matter in water to form by-products
Many people choose filtration to reduce chlorine while still maintaining safe, treated water.
Fluoride
Fluoride is added to drinking water in many parts of Australia to support dental health.
Some households prefer to reduce fluoride intake due to personal health preferences, sensitivities, or dietary considerations. Others are comfortable with it and choose not to.
Filtration is about choice. We explain options clearly so you can decide what's right for your home.
Heavy metals
Heavy metals such as lead, copper, or aluminium can enter water through:
- Older plumbing and pipes
- Fixtures and fittings
- Local infrastructure
Even when municipal water meets standards, metals can be introduced between the street and your tap. Filtration can help reduce exposure, particularly in older homes.
Microplastics
Microplastics have been found in water sources worldwide, including drinking water.
Research into long-term health impacts is ongoing, but many households choose filtration as a precautionary measure to reduce potential ingestion.
Rust and sediment
Rust, sediment, and particulate matter are often linked to:
- Ageing pipes
- Pipe repairs in the area
- Bore or regional water supplies
These particles can affect water clarity, taste, and appliance longevity. Filtration can help remove visible and invisible particulates before they circulate through your home.
Limescale and mineral hardness
Hard water minerals can cause buildup on:
- Appliances
- Shower screens
- Kettles and coffee machines
While not usually a health concern, many households choose filtration to protect their home and reduce ongoing maintenance.
Bacteria and microorganisms
Municipal water supplies are generally well-managed, but bacteria can become a concern in specific situations, such as:
- Tank or bore water
- After plumbing or infrastructure work
- Localised contamination events
Filtration options can be discussed based on your water source and household needs.
Taste and odour issues
Sometimes the concern is simple: the water just doesn't taste or smell right.
Seasonal changes, treatment adjustments, and local conditions can all affect taste and odour. Filtration can help provide more consistent, pleasant water quality.
Do regional water supplies differ?
Yes. City, regional, bore, and tank water can vary significantly.
There's no one-size-fits-all solution, which is why we start with understanding your specific water supply before making recommendations.
What is whole-home water filtration?
A whole-home system treats water at the point it enters your home, delivering filtered water to every tap, including bathrooms, laundry, and kitchen.
Will filtration reduce water pressure?
When properly specified and installed, whole-home systems should not noticeably reduce water pressure. Our systems are designed for Australian homes and assessed against your plumbing and usage needs.