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Certified Backflow Testing & Prevention Plumbers — Protect Your Water Supply

Name: Plumber
Brand: The Clean Plumber
SKU: plumber-plumber
Price: 199 AUD
Availability: InStock
Rating: 5 (526 reviews)

Certified Experts in Backflow Testing and Prevention

38,000+ 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.

0488 854 186

Sydney’s Most Trusted Plumbing Professionals

Wherever you are in Sydney, we’ve got your plumbing needs covered! From blocked drains to gas and roof plumbing, our team is available 24/7 for emergency services.

Check our service areas and reach out today for quality plumbing solutions!

Service Areas

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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 Plumber. Visit our specials page to learn more about our expert plumbing services.

Don’t miss out on our current specials

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!

40+ Years of Service

A legacy of reliability and expertise.

38,000+ Jobs Completed

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

24/7 Plumbing Services

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

5 Star Reviews

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

Lifetime Labour Warranty & Guarantees

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

Affordable Plumbing Guaranteed

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

Qualified Team

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

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.

0488 854 186

Over 38,000 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!

The Clean Plumber

5.0

Based on 557 reviews

review us on

Erin C

12:00 26 Jul 25

The Clean plumber’s service is fast efficient and on time. Today David has done a great job for me, fixed the complicated blocked main drains in my property. He is polite and explained things very clearly. I highly recommend him to anyone.

Adrian Bright

00:04 23 Jul 25

David from the Clean Plumber arrived on time.Extremely polite and helpful.Immediately located the problems and resolved both the leak and blocked Water Board main issue quickly and efficiently.Followed up with the Water Board and arranged for them to inspect their main line the same day.Could not be more satisfied.

Berniece Palaci

00:56 21 Jul 25

Outstanding Service from Nick!Nick assisted with a plumbing issue involving my hot water system, and I couldn’t be more impressed. He was efficient, clearly communicated the problem, and promptly resolved it. His professionalism stood out throughout from diagnosing the issue to completing the job with care and attention. He even took the time to tidy up afterwards, which was greatly appreciated. Highly recommend Nick for anyone needing reliable and professional plumbing work.

Kokila Jeevanandham

10:39 27 May 25

Great service!A friendly Chinese gentleman (possibly named David) came to clean our plumbing. He carefully listened to all our concerns and did a fantastic job. He went the extra mile to make sure everything was clean and there were no blockages left. Super helpful and professional — really happy with the service! Super hero:)

Kim Dan

10:11 06 May 25

I dont normally do reviews but Tony was a champion, super accomodating and took the time to explain my blockage issue thoroughly. Great service and will use again! – Thanks Clean Plumber

Jaspal Sudan

06:45 15 Apr 25

I recently experienced a blocked toilet at home and contacted The Clean Plumber for assistance. David, the plumber who attended, delivered exceptional service. He was professional, efficient, and handled everything with great care. He thoroughly cleared the blockage, explained the cause to me, and ensured the area was left spotless—there was no mess at all.What I appreciated most was the honesty and transparency—there were no hidden fees, just straightforward, high-quality service. I’m extremely impressed with David’s work and would highly recommend The Clean Plumber to anyone in need of reliable and trustworthy plumbing services.

Jenny YD

21:50 25 Feb 25

I used the Clean Plumber and they were honest in their assessment. A previous plumber installed our freestanding bathtub incorrectly and used the incorrect drain connection (for a sink instead of a tub) leading to unbearably slow drainage. I hired two other plumbers who couldn’t diagnose the problem correctly but the Clean Plumber came and identified the issue and re-installed the tub with correct parts. All along the process they were upfront as to how much it would cost to do the work based on issues found. They were pleasant to deal with and thoroughly explained how they were going to fix it. I would definitely use them again.

Rendell Nalda

02:30 24 Feb 25

David – super professional and transparent with works and cost. Definitely recommend this company!

Clare Woodhouse

03:05 07 Feb 25

Excellent service

Waqas Abbasi

00:22 05 Feb 25

Guys got us out of a tough spot with a leaking valve on the hot water system on Christmas eve. Saved the family from cold showers for a week.

Anya Polorotoff

03:37 02 Feb 25

I’m writing this review as a very happy first time customer. Service was excellent, David was very knowledgeable and friendly. Pricing is reasonable and transparent. I would highly recommend The Clean Plumber

Jermaine Sharp

19:52 29 Jan 25

I had an emergency plumbing situation and a work colleague recommended Cerena and The Clean Plumber. Cerena was an absolute legend from start to finish! Responded quickly, was professional and solved the problem in no time. Would highly recommend to anyone i know.

mohd mufid

23:28 28 Jan 25

Tanaaka and Harry had been very experienced and finished the job in quick time and nicely done

Monique Pryce

00:14 24 Jan 25

Tanaka was great. He communicated well on what he was doing and any disruption to water supply.Turned up on time and no mess when he left.Thanks clean plumber

Amy Danckert

01:26 22 Jan 25

Fast, friendly service. Cleaned after work completed. Fabulous!!

Renee Welsh

04:44 11 Jan 25

My mother had The Clean Plumbers to fix her bathroom shower taps. Jayden was very professional and friendly. Highly recommend Jayden.

Helen MacGregor

23:36 09 Jan 25

Many thanks to David and Harry. Resolved my plumbing problems quickly and efficiently. Would be happy to recommend.

Matilda Faltyn

05:17 08 Jan 25

I had a blocked gutter and the two men who came to fix it were efficient and found the problem and fixed it. As it wasn’t fixed properly the first time. I like their professionalism too.

Ashish Mani

02:26 07 Jan 25

Very professional prompt service and reasonable price

jerry su

23:09 05 Jan 25

Jayden did a awesome job, quick response and perfect skill.

Marc Rossi

21:02 05 Jan 25

Great service from The Clean Plumber and Jayden. Very professional and transparent. Had a leak and the response and assistance was very prompt. The job was completed efficiently, thoroughly and economically. I definitely recommend and will use them again for all plumbing needs. Well done team. Awesome customer service. Many thanks.

Jiji Collaboration

05:46 26 Dec 24

Excellent Service and Professionalism!I recently called The Clean Plumber for a repair job, and I couldn’t be happier with their service. The team was punctual, polite, and very efficient. The pricing was transparent, and they left the workspace clean and tidy.If you’re looking for reliable plumbers in Sydney, I highly recommend The Clean Plumber!

Kaarthika Nizham

00:57 03 Dec 24

David was helpful in fixing and clear in explaining the reasons behind the water flow issues. Thanks for your expertise and service.

Reynold Ismail

23:51 25 Nov 24

I recently had the pleasure of having Tanaka from The Clean Plumber handle a plumbing issue at my home, and I couldn’t be happier with the service. From start to finish, Tanaka was the epitome of professionalism. He arrived on time, which I greatly appreciated, and even wore shoe covers to ensure my home stayed spotless—such a thoughtful touch!Tanaka was incredibly polite and took the time to clearly explain the work that needed to be done, outlining all the options available with transparent and very reasonable pricing. This made it easy for me to make an informed decision without feeling pressured. His work was efficient, thorough, and left everything cleaner than when he arrived.Not only did he solve the plumbing issue flawlessly, but he was also genuinely pleasant to have around, making the whole experience stress-free. I will absolutely be using The Clean Plumber again, and I highly recommend Tanaka to anyone in need of a reliable, skilled, and courteous plumber.

C R

04:23 19 Nov 24

Recently called the clean plumber for an urgent plumbing issue. I have never called them before but after jayden arrived to my house and completed the work I’ll never call anyone else. Jayden was on time, had great communication, explained everything he was doing to me and how things work, his work was precise and to a high standard and left the work area spotless. I will definitely be asking for Jayden again next time I need a plumber.

Mike Mammu

04:22 19 Nov 24

Reliable, best service and reasonably priced.Highly recommended

Vinit Patel

03:10 19 Nov 24

Jayden is an exceptional plumber who exemplifies professionalism and expertise. His communication skills are outstanding, keeping us informed every step of the way. He completed the job with precision and care, ensuring everything was spotless. A true professional and a pleasure to work with!

Peter Tang

11:15 25 Oct 24

My in-laws were after a reliable plumber but didn’t know anyone reputable. I did a google search for them and took a few quotes. Although The Clean Plumber wasn’t the cheapest, their quote was still very reasonable and they were by far the most professional to deal with. Happy with the job and glad we took the plunge. Workmanship 5 stars, Service 5 stars and reliability 5 stars. Job well done!!

Ben Fan Creative

23:24 06 Oct 24

I contacted the Clean Plumber yesterday for a blockage in my shower. They arrived within 3 hours, cleared it and gave us some excellence advice on how to maintain it going forward. It was a smooth service from start to finish. High recommend!

Reza Bodouhi

12:02 02 Oct 24

I had a great experience replacing our toilet with Clean Plumbing. While the cost was higher than some other quotes I received, the quality of the work and the final result made it worthwhile. The service was very professional. Thank you to the entire team, especially Jayden, for a great job

Sarkis J

06:00 23 Sep 24

What a fantastic and reliable company! Made my booking a week prior and the team showed on at the expected time. Work was completed with very little mess !Would highly recommend Kevin and his team for your plumbing repairs.

We also offer a LIFETIME warranty on all labour!

lifetime-warranty-label-endless-guarantee-ribbon-badge 2

“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

“Great job on the shower leak guys. Diego removed all tiles to base and re-waterproofed and tiled our 2 showers. He provided excellent service and we are very happy with his work. We recommend to anyone worth a shower base leak to reach out to them!”

★★★★★

Rob

“Clean Plumber came to my house and fixed a blocked toilet and leaking kitchen sink. The experience was very professional from booking in the job to the service. Happy to give them five stars. Thanks”

★★★★★

Maziar

“Clean plumber attended my property in Strathfield and installed a new vanity and two toilets. The service was quick and efficient and better yet the site was left squeaky clean. Big shout out to Damien!”

★★★★★

Giselle

Call 0488 854 186

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?

A 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.