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Home » Plumbing Services » Backflow Prevention

Certified Backflow Testing & Prevention Plumbers Sydney

Certified Experts in Backflow Testing and Prevention
41,000+ Plumbing Jobs Successfully Completed
Serving Sydney for Over 40+ Years with Trusted Expertise

Ensuring clean water is vital, and backflow prevention is critical for stopping contaminants from entering council water supplies. Our certified plumbers specialise in protecting Sydney homes and businesses by keeping your water supply safe and compliant with regulations.

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    Great Plumbing Deals You Won’t Want to Miss

    Protect your water supply with professional backflow prevention and testing from The Clean PlumberVisit our specials page to learn more about our expert plumbing services.

    Backflow Prevention Services

    As property owners, it is your responsibility to maintain this safeguard. Entrust our accredited plumbers to:

    Install a tailored backflow prevention device at your property.
    Provide a certificate of compliance for your peace of mind.
    Conduct annual backflow testing to ensure the proper functioning of your device and submit the results to Sydney Water.

    Our plumbers hold a special accreditation which enables them to install and correctly fit the backflow device therefore if you’ve been contacted about backflow testing, call The Clean Plumber today for a quote on our services.

    A local Plumber installing a backflow prevention device

    Going the extra mile to see you smile!

    The-Clean-Plumber-40-Years

    40+ Years of Service

    A legacy of reliability and expertise.

    The Clean Plumber Tick - Jobs Completed

    41,000+ Jobs Completed

    Delivering quality plumbing services on every job, big or small.

    The Clean Plumber 24/7 Service

    24/7 Plumbing Services

    Ready to help, day or night, for emergencies like burst pipes, blocked toilets, and gas leaks.

    The Clean Plumber 5 Star Review

    5 Star Reviews

    We guarantee same day service and excellent customer service. Our reviews speak for themselves!

    The Clean Plumber Warranty and Guarantee

    Lifetime Labour Warranty & Guarantees

    We provide warranties on all work conducted and a manufacturer’s warranty on parts and equipment.

    The Clean Plumber Affordable Plumbing Service

    Affordable Plumbing Guaranteed

    No gimmicks, upfront fixed pricing guaranteed by our expert plumbing team.

    The Clean Plumber Badge

    Qualified Team

    All our plumbers are fully licensed & have been trained in accordance with Australian Standards.

    The Clean Boot

    Respect for Your Home with CleanBoot®️ Protection

    Keeping your home spotless by preventing dirt and debris with every visit.

    If DIY home plumbing isn't the solution, call your blocked drain experts at The Clean Plumber.

    Why Should You Contact The Clean Plumber?

    We’ve been in business for over 40+ years and have seen it all when it comes to testing and preventing backflow.

    Our 5 star reviews speak for themselves as we pride ourselves on offering the best possible customer service experience when it comes to plumbing as well as quality workmanship backed by years of industry experience.

    Over 41,000 Jobs Completed

    ★★★★★

    Rated 5 Stars on Google!

    What do our customers have to say about The Clean Plumber?

    Our 5-Star Google Reviews Speak For Themselves!

    4.9
    Based on 627 reviews
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    Rissa McInnes
    22:59 31 Jan 26
    ⭐⭐⭐⭐⭐I had a fantastic experience with Clean Plumbing in Kellyville. Thanks Kevin, from the first call to the completed job, their service was professional, prompt, and stress-free. The plumber arrived on time, clearly explained the issue, and fixed it efficiently with no mess left behind. Pricing was fair and transparent, which I really appreciated. It’s refreshing to deal with a local business that genuinely cares about quality and customer satisfaction. Highly recommend Clean Plumbing to anyone in Kellyville looking for reliable, honest plumbing services!
    Rebecca Smith
    05:48 29 Jan 26
    Scott came to my rescue to clear blocked drains that were threatening to flood my apartment. Prompt, communicative, thorough and respectful service. I would highly recommend Scott and Taren Point Plumbing to anyone with plumbing needs. Five stars from me!
    Greg Fickel
    03:55 13 Jan 26
    Highly recommend. Isaac turned up at the appointed time. Listened to our problems and then diagnosed the issue advised what the cost would be(no nasty surprises at the end!!)Job was done efficiently and quickly and Isaac showed me on the camera that the sewer line was now clear of any obstructions. Polite and efficient will definitely use again.
    J S
    03:33 09 Jan 26
    Thank you to Stephen and Kevin for their excellent work during the Christmas break. Stephen realigned my father’s toilet seat and did a great job, thankfully, because it’s been a huge problem for my dad after several attempts from several plumbers. We also had a leak that was promptly detected and fixed in no time. We were happy with the very decent price and the seniors discount that my father was given. Stephen and Kevin were awesome guys that were lovely to speak to and they were also very tidy and respectful.
    David M Yu
    03:22 09 Jan 26
    We had a leaking tap right at the start of the new year, and keen to get it fixed but couldn’t get hold of the plumber we knew. It was pleasing to see The Clean Plumber has a user-friendly online booking system, and we are booked in for the next day in no time. Blake attended the job on-time on a searing hot day. He did a fantastic job, deserve a 5 out of 5 – he identified the issue quickly; explained the solution and price to us clearly before proceeding; he is skilful and cleaned up everything afterwards. Highly recommend!
    Chris B
    00:29 09 Jan 26
    Our hot water system had recently given up on us. Blake came out on time and was fantastic to work with. Gave us an honest and reasonable upfront price to replace the system, and now we won’t have to worry about the system while we’re away.5 stars isn’t enough!
    Alyssa Campbell
    01:37 07 Jan 26
    5/5 my husband and I have had the most fantastic experience with multiple individuals from individuals from the Clean Plumber. This past Friday, Harry and Blake were very helpful and today Isacc and David were particularly helpful. A big shout out to Isacc who was so thorough in understanding the complexities occuring in a few units. He was also generous with his time in explaining and helping us understand everything. Highly recommend The Clean Plumbers and will definitely use them in the future
    Anthony Bolack
    04:47 30 Dec 25
    Great experience with The Clean Plumber. David and Blake were awesome to deal with and got our hot water system replaced quickly, even over the Christmas/New Year break. Super easy process, no hassles at all, and they cleaned everything up before they left. Really impressed with the service 👍
    Middle pepper
    23:55 29 Dec 25
    I had a very large job with this business and I must say I’m very happy with the work they did. The plumber who came out for the quote was very professional answer my never ending questions without any fuss and with helpful explanations.When the job was being work on the team was very proactive in keeping me informed as to what going to happen what to expect and how it impacted any happening.I’m very happy with the service they provided.
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    We also offer a LIFETIME warranty on all labour!

    “Clean Plumber is now our plumber of choice! Five stars to Matthew. He was prompt, polite and helpful. Answered all our questions thoroughly before proceeding to replace the tap and when he got to work nothing was a problem. He even left the worksite much cleaner than when he started.”

    ★★★★★

    Tim Y

    “Contacted Clean P from their fridge magnet and took up their seniors offer. They tidied up some taps and washers in some problem areas and were able to identify a few pressing issues. Price was reasonable and we went ahead to get them fixed. We are confident in their service and warranty and felt very secure due to their sound knowledge of matters”

    ★★★★★

    Crystal

    “Shane and his team are awesome. They regularly look after our plumbing and general maintenance needs for our hotel. Great guys. Nothing is ever trouble. And Everything is always done efficiently and at a reasonable price.”

    ★★★★★

    Mona

    “The Clean plumber came to my home to investigate a roof leak. They diagnosed the issue and put in a plan of action to rectify it. I am convinced that had it not been for Damien’s foresight, the situation could have been a lot worse down the track.
    They are excellent plumbers and their knowledge and wisdom is unparalleled compared to other plumbers I have engaged in the past.”

    ★★★★★

    Mick

    “We contacted Clean Plumber after hours for a urgent matter, as we had a large pipe that burst on our acreage property. They turned up within the hour and immediately stopped the leaking.
    We were very impressed with the quick service as we live in a semi rural area. They came back a few days later and replaced the faulty section of the pipe. All in all a very happy customer!”

    ★★★★★

    Laura

    “As a manager of several childcare centres we need reliable plumbers. The clean plumber is our go to plumbers, always quick, efficient and on time. The Clean Plumbers are professional, reliable and can be trusted to get the job done to a high standard.”

    ★★★★★

    Monique

    Protect Your Water Supply Today

    Don’t wait until a small issue becomes a major problem. Contact us today for expert backflow testing and prevention plumbing services.

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    Backflow Prevention FAQ’s

    What is water backflow?

    Water typically flows into your property at a steady pressure, ensuring consistent tap performance. However, reduced pressure can cause backflow, where contaminated water is pulled back into the supply. Backflow may occur if a nearby pipe bursts, water is pumped for firefighting, you use water at higher pressure, or high demand lowers your property’s pressure.

    What is backflow device testing used for?

    Most residential properties are low-risk and don’t require special testing. However, high and medium-risk properties need registered backflow prevention devices, air gaps, break tanks, and fire service valves tested annually by a licensed plumber.

    For backflow plumbing services, call our team at 0488 854 186.

    Who can install or test backflow prevention devices?

    Only licensed plumbers with backflow prevention accreditation can inspect, commission, and test medium and high-hazard backflow devices. After installation, only these accredited plumbers can perform tests and submit the test reports.

    How does The Clean Plumber implement Backflow prevention and testing services?

    As a property owner, you must maintain backflow prevention systems. Trust our accredited plumbers to install customised devices, provide compliance certificates, and conduct annual testing with results submitted to Sydney Water. 

    Contact The Clean Plumber for a quote and expert service.

    Why is regular backflow testing necessary?

    Regular backflow testing is essential for health and safety, as it prevents contaminated water from entering your water supply, which could lead to serious illness. Testing is required after installation, repairs, or relocation of backflow devices, and at least once a year for ongoing protection. Our emergency plumbing services ensure that any urgent issues are resolved quickly to maintain the safety of your water supply.

    What is the process for testing a backflow prevention device?

    professional plumber tests backflow prevention devices by operating valves to identify any issues. After the inspection, a report detailing the device’s condition is prepared and submitted to the relevant water authority.

    How often should a backflow preventer be tested?

    Backflow valves need to be inspected annually. Businesses are responsible for both installing and maintaining their systems. Failing to do so could result in contaminated drinking water, exposing them to significant liability risks. Without a backflow prevention device, contaminated water can enter the clean supply, posing health risks and potential legal liabilities.

    Take advantage of our special offers on backflow testing to ensure compliance and protect your water supply!

    What are the risks of not installing a backflow prevention device?

    Without a backflow prevention device, contaminated water can enter the clean water supply, posing health hazards and potential legal liabilities for businesses. It’s crucial to have a backflow device installed and maintained to protect against contamination.

    Which types of properties are required to have backflow prevention devices?

    Properties that use irrigation systems, hazardous materials, or are otherwise at risk of contamination are required to have backflow prevention devices installed. High-risk facilities, such as hospitals and food processing plants, are also required to have these devices. For more detailed information on backflow prevention, visit our blog.

    What are the signs that backflow might be occurring?

    Signs of backflow include discoloured, foul-smelling, or odd-tasting water, as well as a sudden drop in water pressure. If you notice any of these signs, contact our professional plumbers immediately to assess and resolve the issue. Our leak detection services can help identify and resolve any underlying issues before they worsen.

    What should I do if my backflow prevention device fails the test?

    If your device fails the test, it’s important to contact our professional plumbers immediately for repairs or replacement. Addressing the issue promptly will help prevent contamination and ensure compliance with health and safety standards.

    If the issue affects your hot water system, we can inspect and repair it to restore safe and reliable operation.

    Do You Service my Area?

    Yes, we install, repair, and maintain hot water systems across Sydney, including Queens Park, Jordan Springs, and Jannali. Our team services homes in Jamisontown, Ingleside, and Ingleburn, ensuring you have reliable hot water year-round.