Professional Backflow Device Installation & Upgrades

A compliant backflow prevention device is the only thing standing between contaminated wastewater and the public drinking supply. Our licensed backflow plumbers provide expert, legally certified installations for residential and commercial properties to ensure total safety and Water Corporation compliance.

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     5.0 Google41 reviews

Securing Your Property and the Community Water Supply

Whether you are setting up a new commercial craft brewery, upgrading an industrial wash-down bay, or simply installing a complex home reticulation system, installing the correct backflow valve is a strict legal requirement in Western Australia. Without an approved device, a sudden drop in scheme water pressure can cause highly toxic chemicals, stagnant water, and organic waste to siphon directly back into the clean municipal supply.

Mindarie Plumbing & Gas handle the entire installation process from initial hazard assessment to final Water Corporation certification. We expertly fit the appropriate high-hazard, medium-hazard, or low-hazard valves for your specific property, ensuring your new infrastructure is robust, easily accessible for annual testing, and completely compliant.

Need a mandatory backflow prevention device installed? Call our local team today.

Get A Quote

Call 0414 772 288

The Mindarie Plumbing Service Guarantee

Water Corporation Certified

We handle all the mandatory compliance paperwork and submit the installation reports directly to the relevant Western Australian authorities.

Accurate Hazard Sizing

We meticulously assess your property's specific contamination risks to ensure you install the exact valve required by law.

Heavy-Duty Infrastructure

We supply and install premium, highly durable brass and stainless-steel valves designed to withstand harsh commercial and outdoor environments.

Meet Brett & The Team

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Emergency Info

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What Mindarie Locals Are Saying

       
 Excellent5.041 reviews
 5.0
 Excellent41 reviews
  Write a review 
 
 
 
   
 
 
      Posted on Google  
   
   Michael Mulcahy 
 193 days ago
 
 
 Trustindex verifies that the original source of the review is Google. As a reticulation contractor, we are always looking for reliable plumbers to work with.

We had a client in Burns Beach who noticed water leaking down their driveway while they were overseas on holiday. After seeing it on their CCTV, it became an urgent priority to have it fixed as soon as possible.

We were initially called out, as it was assumed to be an issue with the reticulation system. However, upon inspection, we quickly identified a leak in the copper pipe coming off the water meter.

We contacted Brett from Mindarie Plumbing and Gas and sent through some photos. Brett was able to provide a prompt estimate and arrange a time to attend the property in Burns Beach.

He quickly repaired the leaking copper pipe near the water meter, and upon completion, sent through photos, giving us peace of mind that the issue had been resolved.

Outstanding service from a reliable local plumber. We highly recommend Brett and the team at Mindarie Plumbing and Gas for any plumbing work in Burns Beach and surrounding areas.
  
 
     Posted on Google  
   
   robin ainslie 
 552 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Thanks Brett...110% satisfied...Great service at a very reasonable cost.
  
 
     Posted on Google  
   
   Dan Steed 
 579 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Always have scrutiny with any trade that you call in an emergency. Absolute gentleman. Charged us reasonably the whole way through. Didn’t ask for a review which means all of his reviews are organic. Probably the first review I’ve gone out of my way to make which speaks volumes about Brett.
  
 
     Posted on Google  
   
   Claire Creamer 
 636 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Brett helped with a toilet leak. He turned up on time, was polite, efficient and knowledgeable and did the job quickly and without fuss. He was also very tidy! Thank you very much!
  
 
     Posted on Google  
   
   Elizabeth LS Cregan 
 773 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Efficient, great service, helpful and friendly, thanks Brett.
  
 
     Posted on Google  
   
   Stephen Thomson 
 777 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Brett total pleasure to meet you today. It was a quick response and a fantastic outcome from you, who sorted our problem in no time. Extremely happy with the fix and billing. I don't often have these positive endings well recommended.
  
 
     Posted on Google  
   
   Michael Bretagne 
 936 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Brett was friendly, quick and well priced. I would recommend him any time
  
 
     Posted on Google  
   
   Melanie Johnson 
 967 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Service was prompt, efficient and fixed the problem first time. Very impressed.
  
 
     Posted on Google  
   
   beth wilson 
 1151 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Brett is very affordable saved my parents thousands of dollars for doing a simple repair will definitely be recommending him to friends and family and definitely be coming back in the future
  
 
     Posted on Google  
   
   Lam Ka Ho 
 1422 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Good knowledge , reasonable price.
The best of the north 👍🏻

Frequently Asked Questions

How do I know which backflow device my property needs?

The specific type of backflow prevention device you need is entirely dependent on the hazard rating assigned to your property by the Water Corporation. High-hazard sites, such as chemical manufacturing plants or commercial breweries, must install highly secure, testable Reduced Pressure Zone (RPZ) valves to prevent severe contamination.

For medium or low-hazard situations, like a standard residential property with an underground bore or a basic reticulation system, a simpler double check valve is usually sufficient. Our licensed team will conduct a thorough site assessment to determine your exact risk level and install the correct, legally compliant device.

Can a regular plumber install a testable backflow valve?

No, not every registered plumber is legally allowed to install or commission testable backflow prevention devices in Western Australia. The installation and subsequent certification must be carried out by a specially endorsed backflow plumber who holds the specific qualifications required by the Water Corporation.

Attempting to use an uncertified contractor or attempting a DIY installation will immediately result in rejected compliance paperwork and potentially massive fines. Brett and the team hold all the necessary backflow endorsements, ensuring your new installation is completed safely and logged correctly with the authorities on the very first day.

Where exactly should the backflow device be installed?

The location of your backflow prevention device depends heavily on what it is designed to protect. For boundary protection, the valve is typically installed immediately after your property's main water meter, shielding the entire municipal supply from anything occurring on your site.

Alternatively, zone protection involves installing the valve directly at the specific source of the hazard, such as an industrial chemical vat or a commercial coffee machine. We carefully evaluate your property's layout to determine the most effective location, ensuring the device is easily accessible for mandatory annual testing.

Will installing a backflow device reduce my water pressure?

It is completely normal to experience a very slight reduction in water pressure after a testable backflow device is installed on your main water line. These heavy-duty valves rely on powerful internal springs and check mechanisms to prevent reverse flow, which naturally creates a small amount of resistance as the water pushes through.

However, a professionally engineered installation will ensure this pressure drop is minimal and barely noticeable during your daily operations. We accurately calculate your property's peak flow requirements and precisely size the new pipework to ensure your showers, commercial kitchens, or reticulation systems still perform flawlessly.

Do I need to notify the Water Corporation after the installation?

You do not need to personally navigate the complex bureaucratic process or contact the Water Corporation directly. As fully endorsed backflow specialists, we manage all the mandatory compliance reporting and testing documentation on your behalf immediately following the installation.

We rigorously test the newly installed valve, record the diagnostic pressure readings, and submit the official commissioning certificate directly to the relevant Western Australian authorities. This seamless service provides you with immediate peace of mind, knowing your property is legally compliant and fully protected from the moment we leave.

Have a question?

Contact Our Team

Professional Backflow Device Installation & Upgrades

Securing Your Property and the Community Water Supply

The Mindarie Plumbing Service Guarantee

Water Corporation Certified

Accurate Hazard Sizing

Heavy-Duty Infrastructure

Need An Emergency Plumber?

What Mindarie Locals Are Saying

Frequently Asked Questions

Request A Quote