Hot Water System in Mackay

  • Locally owned & trusted for honest, reliable service
  • Fast response times & efficient problem-solving
  • Licensed & insured team delivering quality workmanship

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A Water Heater is Sitting on the Side of a Brick Building — CJM Plumbing & Roofing Mackay in Mackay, QLD

Mackay Hot Water System

A failed hot water system can throw your whole day off—cold showers, unusable kitchens and frustrated tenants or staff. CJM Plumbing & Roofing Mackay offers fast, professional support for any hot water system issue, from repairs and maintenance to full system upgrades. We work with electric, gas and solar units across all property types to ensure reliable, efficient hot water when you need it most.


Whether you’re based in Mackay, Sarina, or Marian, our licensed team responds promptly to get your hot water running again without delay. Need urgent help or planning a system upgrade? Call 0413 767 093 to get it sorted today.

Built on Trust, Backed by Experience

Repairs, Installations & Long-Term Reliability

Your hot water system should be dependable, efficient and suited to your household or business needs. We work with homeowners, landlords and commercial clients to assess the right system type, size and setup—then install it properly the first time.


  • We diagnose hot water problems quickly, whether it’s a faulty thermostat, worn-out element or full system failure.
  • Our team installs electric, gas and solar units, helping you choose the most efficient model for your water usage.
  • We repair leaks, replace valves and service tanks to extend system life and maintain performance.
  • We remove and dispose of old units and complete new installations with neat, code-compliant workmanship.
  • Advice is available on energy efficiency, system size, water pressure and installation locations for best results.


Whether it’s a last-minute emergency or part of a planned upgrade, we’ll get your hot water sorted with minimal fuss and a tidy finish.

A Water Heater is Sitting on the Side of a Building Next to a Window — CJM Plumbing & Roofing Mackay in Mackay, QLD

Frequently Asked Questions

  • How long should a hot water system last?

    The average lifespan of a hot water system depends on the type and how well it’s maintained. Electric systems typically last 8–12 years, gas units 10–15 years, and solar systems up to 20 years with proper care. Regular servicing and replacing parts like pressure relief valves can help extend the life of your unit and prevent early breakdowns.

  • What size hot water system do I need?

    System size depends on your household or business water usage. A small household may only need a 50–80 litre system, while a family of four typically requires 125–250 litres. Commercial properties may need systems over 300 litres or continuous flow models. Factors like number of bathrooms, washing machines and peak usage times also play a role in choosing the right capacity.

  • What are signs my hot water system needs replacing?

    Signs include inconsistent water temperature, reduced pressure, rusty or discoloured water, unusual noises or water pooling near the unit. If your system is older than 10 years and having recurring issues, it may be more cost-effective to replace it than continue with frequent repairs. A licensed plumber can assess whether a repair or full replacement is the best option.

Locations We Service