Backflow Prevention in Mackay

  • Locally owned and operated
  • Specialising in septic systems, plumbing & blocked drains
  • Backed by over 50 years of industry experience
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A Bunch of Water Pipes Are Connected to Each Other — Treatwater & Plumbing Pty Ltd in North Mackay, QLD

Certified Testing & System Compliance

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Mackay Backflow Prevention

Unexpected changes in water pressure can turn everyday plumbing systems into contamination risks—especially in properties with irrigation, fire hose reels, or older plumbing layouts. At Treatwater & Plumbing, we deliver licensed backflow prevention services across Mackay, the Whitsundays, Dysart, Airlie Beach, and Proserpine to help protect your water supply and keep you compliant.


We install, test, maintain, and certify backflow prevention devices for residential, commercial, and industrial properties. Our team ensures every device meets Queensland standards and council requirements.


For fast, accurate service and timely reporting, call 07 4952 3577 to book a backflow test or system service.

Prevent Contamination

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Tailored Protection for Your Property

Not all properties have the same risk level—which is why we assess and match devices to your specific backflow rating. Our licensed plumbers provide thorough testing and ongoing support to ensure long-term safety and compliance.

For properties with existing devices, we offer reliable maintenance and repairs to keep everything operating efficiently. With over 50 years of combined experience and full licensing, our team delivers dependable results and expert support when it matters most.


If you’re due for a test or unsure of your system’s status, now’s the time to book an inspection.

A Close Up of a Bunch of Blue Pipes and Valves — Treatwater & Plumbing Pty Ltd in North Mackay, QLD

FAQ

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All You Need To Know

  • What is backflow and why is it dangerous?

    Backflow happens when water pressure drops or reverses, allowing contaminated water to enter the clean water supply. This poses health risks and may lead to serious plumbing issues if not addressed.

  • How do I know if I need a backflow prevention device?

    Properties with irrigation systems, fire hose reels, or complex plumbing usually require one. If you're unsure, check with your local council or arrange a licensed plumber to assess your risk level.

  • Is backflow prevention testing mandatory in Queensland?

    Yes. Annual testing and certification are mandatory for many properties. Councils require proof of compliance to ensure water safety, especially in commercial or high-risk sites.