When you need a new hot water system installed or an existing unit replaced, the right solution starts with understanding what is already there, how the property uses hot water and what will be involved in completing the installation properly.
Heritage Plumbing Group provides hot water system installation and replacement across Melbourne for residential, rental and commercial properties, helping customers choose a practical system that suits the property, existing services and day-to-day hot water demand.
If the existing hot water system has suited the property and the same type of unit can still be installed under the current requirements, replacing it with a similar system can reduce the amount of alteration work required and make the overall replacement more straightforward. This can be particularly useful when a customer wants to restore reliable hot water without unnecessarily changing pipework, electrical services or the installation location.
There are also situations where changing the type of hot water system is worth considering. A customer may want to improve energy efficiency, move away from gas, install a heat pump, change from storage to continuous flow or replace an older system with a different electric option.
The best choice depends on more than the size written on the existing unit. Household or building demand, available space, the existing gas and electrical supply, water services, installation location, access and how hot water is used throughout the day can all affect what will work properly.
Heritage can assess the existing installation and talk through the available options before work begins. This may include gas, electric, heat pump, continuous flow, storage or solar hot water depending on the property and what the customer is trying to achieve.
Where a more specialised system is being considered, we can also direct customers to the relevant Heritage hot water service so the advice stays specific to that type of installation rather than treating every property the same way.
Replacing a hot water system can involve more than removing one unit and putting another in its place. Depending on the existing installation and the replacement selected, work may include isolating and disconnecting the old system, removing it from site, altering hot and cold water pipework, upgrading or replacing valves and temperature-control components, adjusting drainage, modifying gas services or coordinating electrical work. The new system then needs to be installed, tested and commissioned so it operates correctly and the required plumbing compliance documentation can be completed where applicable.
If an existing hot water system has developed a fault, replacement is not automatically the first answer. In some cases a repair may still be practical, depending on the fault, condition of the unit and availability of suitable parts. Heritage can assess the problem and explain whether repairing the existing system or replacing it is likely to be the more practical option. Where repair is suitable, our dedicated hot water repair service covers faults and components that do not require the complete system to be replaced.
Customers with mains-gas hot water systems should also be aware that Victorian requirements are changing. From 1 March 2027, when a mains-gas hot water system in an existing Victorian home needs to be replaced, it will generally need to be replaced with an electric alternative, subject to the exemptions provided under the Victorian requirements.
Existing gas hot water systems can continue to be used, serviced and repaired, and the change does not mean every working gas system needs to be removed.
Until the new requirements take effect, customers considering a gas hot water replacement can still speak with Heritage about the options available under the requirements applying at the time. Where a like-for-like gas replacement is suitable, it can remain a straightforward and economical way to replace an existing system. For customers who would prefer to improve energy efficiency or prepare for a future move away from gas, we can also discuss electric and heat pump options and what additional work may be involved.
Changing from gas to an electric or heat pump hot water system can require a different installation approach. Available space, the location of the new unit, electrical capacity, switchboard requirements, pipework and other site conditions may need to be considered before a system is selected. This is why the cheapest unit price does not always represent the full installation cost. Understanding the property first allows the complete scope to be considered before the work proceeds.
Eligible Victorian customers may also have access to government rebates or discounts when replacing an existing hot water system with an approved energy-efficient option. Eligibility, approved products and available incentives can change, so these should be checked against the current Victorian Government programs rather than assumed as part of every installation. Heritage can discuss the plumbing side of the replacement and the practical requirements of installing the selected system.
For commercial properties, rental properties and managed sites, hot water replacement may also need to take into account building use, downtime, access, system capacity and how many people depend on the hot water supply. Heritage works across residential and commercial plumbing and can assess the installation as part of the wider property requirements rather than looking only at the existing appliance.
A properly planned hot water installation should leave the customer with a system that suits how the property is actually used, is installed to the applicable requirements and can be serviced and maintained into the future. Whether the best outcome is a straightforward like-for-like replacement or a change to a more energy-efficient system, Heritage Plumbing Group can assess the existing setup, explain the practical options and complete the plumbing work required for the new hot water service.
Talk to Heritage Plumbing Group about your existing hot water system, the property and the replacement options available. We can help you work through a straightforward like-for-like replacement or a change to another system type.
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Need a reliable plumber near you? Heritage Plumbing Group offers expert solutions across Melbourne with fast response times and top-quality service.
Our licensed team brings decades of local expertise, ensuring efficient, long-lasting results for emergencies, maintenance, and major projects.
