TMV & Backflow Testing in Mackay

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Local Expertise Since 2016

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Comprehensive Service Range

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Backflow Testing for Clean, Safe Water

Keeping water safe is non-negotiable, and that’s where professional backflow testing comes in. McGill Plumbing & Gas offers trusted thermostatic mixing valve (TMV) and backflow testing services in Mackay, Airlie Beach and Moranbah to prevent contaminated water from mixing with your clean supply.


Whether you’re a homeowner or business owner, we’ll ensure your system meets regulatory standards and protects your health. Our experienced team combines thorough inspections with advanced equipment to detect and resolve backflow risks quickly.


In addition to backflow testing, we provide gas fitting and roofing services, giving you complete property care. Ready to safeguard your water system? Call us today on 0422 686 129 for expert testing.

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Our Services

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What We Offer

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Backflow testing isn’t just about compliance—it’s about peace of mind. Our services include comprehensive testing of backflow prevention devices and TMVs to maintain safe water temperatures and prevent contamination.


Whether it’s routine maintenance or urgent repairs, we customise our approach to suit your property’s needs. Serving Mackay and the wider Whitsundays area, we help ensure water systems remain safe and efficient.


Our team also offers roofing and plumbing services, from fixing leaks to hot water system installations, providing all-in-one solutions for your home or business. Trust us to handle your water safety with the care and precision it deserves.

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