Hot Water Systems 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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Reliable Supply, Professional Installation

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Mackay Hot Water Systems

A reliable hot water system is essential for everyday comfort. Treatwater & Plumbing provides installation, repairs, and maintenance of hot water systems across Mackay, the Whitsundays, Dysart, Airlie Beach, and Proserpine.

Whether you’re installing new, replacing an old unit, or need urgent repairs, our licensed team delivers fast, tailored service. We assess your property’s water usage, efficiency, and space to recommend the best solution. We offer a full range of systems—electric, gas, and solar—with quick response times for urgent repairs and long-term warranties available on installations.


With over 50 years of combined experience, we use trusted parts and meet Australian standards. Call 07 4952 3577 to book a service today.

Residential, Commercial & Rural Systems

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Servicing All System Types

We work with a wide range of hot water systems, including electric, gas, and solar-powered units, delivering reliable service to suit your household or business needs. Our team is fully licensed and brings decades of combined experience to every job, ensuring efficient installations and lasting results.


From diagnosing faults to full system replacements, we’re here to help with minimal disruption. We offer tailored solutions for different property types, and all work is completed using high-quality components that meet Australian standards. We’re also available for urgent repairs when unexpected issues arise.

FAQ

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All You Need To Know

  • What type of hot water system is best for my home?

    The ideal hot water system depends on your household size, hot water usage habits, budget, and available energy sources. Electric systems are common in smaller homes, while gas offers faster heating for high-use households. Solar systems are energy-efficient but require adequate roof space and sunlight. Consulting a licensed technician ensures the right fit for both comfort and long-term efficiency.

  • How long do hot water systems last?

    Most hot water systems last between 8 to 15 years depending on the type, usage, and how well they’re maintained. Regular servicing and timely repairs can extend the life of your system. Signs that your system may need replacement include inconsistent temperatures, discoloured water, or leaking around the unit.

  • Why is my hot water system not heating properly?

    Common reasons include thermostat issues, sediment buildup, faulty heating elements (for electric systems), or pilot light problems in gas systems. Solar systems may struggle during extended cloudy periods without a proper booster. Diagnosing the cause early prevents complete failure and helps avoid higher energy costs.