Welcome to Coastal Hotwater & Plumbing PTY LTD

We specialise in Hot Water service, repair and installation. We offer repair and replacement systems across leading brands including Rheem, Aquamax, Rinnai and Dux.

Replacing fixtures such as taps and shower heads can help reduce the household costs, but sometimes the entire hot water system needs replacement. A common reason as to why you may need to call for a hot water service repair or replacement is the unit being old to continue functioning correctly, or it may be leaking. Many homeowners choose to replace it with a cheap, energy efficient system instead of continuing to pay unending repair costs.

Storage water heaters heat and store water in an insulated tank for use when it is needed.

These heaters either use a gas burner located under the storage tank, or an electric element in the tank, to heat the water. Gas units usually have a pilot flame that burns continuously and lights the main burner when it’s needed. Storage systems lose heat through the walls of the tank so they need to burn gas, or use electricity regularly to keep the water at the desired temperature. Well-insulated tanks will have lower storage losses.



Just like any other system or appliance in a Queensland home, water-heating systems need to be maintained to avoid costly repair. Without regular hot water maintenance, the integrity of the entire system is in jeopardy and expensive repairs are likely to be required. Queensland homeowners may begin to experience regular pipe leaks, hot water tank leaks and other heater problems more frequently if the system is not regularly maintained.

In addition to timely repairs, it is important to follow a regular hot water maintenance schedule. For external heating units, it is recommended that this hot water maintenance be scheduled and performed at least every five years to maintain maximum efficiency and safety of the entire heating system. Properly maintained water heater systems can help to identify a tank leak or heater break down early, reducing down time and repair costs to local homeowners. It may also be beneficial to perform hot water maintenance of the entire system during a repair visit.

Regular hot water maintenance and repairs help to ensure even heating and maintain the integrity of the entire hot water heating system. To prevent damage, breakdown, and other possible repair issues of your heating system, the following should be performed as part of any Queensland heating system maintenance schedule:

  • Clean the pilot and burner

  • Remove all sludge from the cylinder

  • Measure the hot water temperature and pressure

  • Check the anode – Replace if necessary

  • Inspect the pressure temperature relief valve – Replace according to manufacturer recommendations. (Usually every five years.)

  • Examine the thermocouple – Replace if necessary

  • Assess and adjust gas pressure if required

Hot water maintenance and repair can be complicated. When homeowners require assistance with maintenance and repair of their water heating systems, they turn to the trustworthy professionals at Coastal Hotwater & Plumbing.

Contact us for help with hot water maintenance or hot water system repairs, such as a leak in the water tank. Here at Coastal we are proud to offer both scheduled hot water maintenance and a general hot water service throughout the Sunshine Coast and surrounding suburbs for all of your hot water heating system needs. Whether it is a heater tank leak or the entire hot water heater that needs repair, our team is  committed to providing all hot water maintenance.

This type of heater works much like an air conditioner,  that it extracts heat from the air along with a refrigerant to produce hot water. This system is electrical powered and is environmentally friendly.


Continuous flow and instant heaters use a fairly newer technology. Instead of using a storage tank, water is heated only as it is needed, reducing waste and allowing for greater temperature control. Continuous Flow Units are extremely energy efficient with a 6-7 star energy rating; these heaters are also very compact and can be installed in small spaces of Melbourne homes. These units may not be as cheap as the storage unit alternative; however, they can be more efficient and have an endless supply of hot water.


By using solar panels, along with gas or electric powered boosters, to heat, solar systems are by far the most energy efficient, but also the most expensive to install. The boosters used on overcast days and the tank can couple to the solar panels in two ways: on the roof along with the solar panels or at ground level. Many Queensland homeowners choose to install the boosters and tank at ground level to avoid the time and expense required to reinforce the roof as well as to allow for easier access during hot water service repairs.

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