Hot Water Systems Melbourne — Supply, Install & Service
For over 30 years, Plum Trade Services has provided prompt, expert solutions for all your hot water needs across Melbourne and Geelong. Experience the difference of a professional, hassle-free installation today.
- Same-day hot water replacements
- Rated 4.9/5 stars (4,000+ Google Reviews)
- Fully licensed plumbers & gas fitters
- 6-year workmanship warranty
Install a New Hot Water System
We stock quality hot water systems and accessories from leading brands at highly competitive prices. Whether you need a compact unit for a small apartment or a high-capacity system for a large family household, discover our top monthly specials below.
Rinnai Hotflo 135L
Reliable gas storage replacement
from $X,XXX
Vulcan 135L
Tough, hardworking gas storage
from $X,XXX
Dux Prodigy 4 135L
Patented flue design for high efficiency
from $X,XXX
Aquamax 390SS
Premium stainless steel tank
from $X,XXX
Rheem Stellar 360
Ultra-fast recovery 5-star gas storage
from $X,XXX
Dux Condensing 26L
Super-efficient continuous flow
from $X,XXX
Helping You Choose the Right System
With so many hot water systems on the market, it can be hard to know which setup is best for your Melbourne home. The right choice depends on your household size, fuel sources, space constraints, and budget. Here is our guide to the main system types we supply and install.
Continuous Flow Hot Water Systems
Continuous flow hot water systems (often called instantaneous systems) heat water on demand as it passes through the unit, rather than storing it in a tank. This means they never run out of hot water, making them perfect for larger Melbourne households with high or busy hot water usage patterns.
Their extremely compact size means they can be easily wall-mounted on external paths or walls, freeing up valuable floor space. Because they only heat water when the tap is turned on, they are exceptionally energy efficient, reducing both your running costs and greenhouse gas emissions.
Best for: Busy households with multiple bathrooms, or properties where space is limited.
Gas Storage Hot Water Systems
Gas storage hot water systems heat water and store it in an insulated cylinder, ready for immediate use. They are designed to deliver full mains pressure to multiple taps simultaneously, recovering exceptionally fast after heavy periods of hot water use.
Modern gas storage cylinders feature optimised burners and combustion to reduce natural gas consumption without sacrificing heating performance. These units are extremely cost-effective, making them an ideal, straight-forward replacement for an older gas storage setup.
Best for: Family homes with natural gas connections looking for an affordable, high-flow hot water replacement.
Electric Storage Hot Water Systems
Electric storage hot water systems are highly popular across Melbourne due to their low upfront cost and simple installation. They heat water using a robust electric element inside an insulated cylinder, available in a massive range of capacities from compact 25-litre units to large 400-litre cylinders.
These systems do not require external flues or gas line connections. Furthermore, they can be configured to run on off-peak electricity tariffs to significantly lower your ongoing running costs.
Best for: Homes without access to natural gas, smaller spaces, or where upfront budget and installation simplicity are top priorities.
Heat Pump Hot Water Systems
Heat pump systems extract natural heat from the surrounding air to warm your water. Operating like a reverse-cycle air conditioner in reverse, they use up to 65% less electricity than traditional electric storage systems.
While the initial cost is higher, the energy savings compound over the life of the system. In Victoria, many heat pump installations are eligible for substantial government rebates, making it a highly attractive upgrade when electrifying your home.
Best for: Environmentally conscious households wanting to slash their energy bills and carbon emissions.
Solar Hot Water Systems
Solar hot water systems utilise roof-mounted collectors to absorb direct energy from the sun and heat the water stored in a dedicated cylinder. They can be installed as close-coupled systems (tank and panels both on the roof) or split systems (tank on the ground, panels on the roof).
A gas or electric booster is integrated to ensure continuous hot water supply on overcast winter days or during periods of high usage. Solar systems deliver the lowest ongoing running costs of any hot water type, backed by federal and state rebate programs.
Best for: Properties with north-facing roof exposure and homeowners planning to stay long-term to maximise their return on investment.
Melbourne-Wide Installation & Repairs
Plum Trade Services manages every single aspect of your hot water system replacement. From helping you navigate complex choices, to providing prompt, professional installation and emergency breakdown repairs, our fully licensed plumbers and gas fitters are here to help.
We also have extensive commercial experience partnering with Melbourne real estate agencies, body corporates, and building managers to inspect, service, and replace large-scale centralised gas or electric bulk hot water plants.
Why People All Over Melbourne Choose Plum
Best Advice & Guidance
At Plum Trade Services, we pride ourselves on our award-winning accountability — with expert advice and upfront quotes you can count on.
4,000+ 5-Star Reviews
It takes exceptional attention to detail, responsiveness, and genuine service to earn more than 4,000 glowing Google reviews.
Over 30 Years Local Business
From humble local beginnings, we have grown steadily through our reputation for always putting our Melburnian customers first.
Wyndham Business Winners
Plum Trade Services is a proud five-time winner of these highly prestigious local business awards, including Business of the Year.
Shop by Brand
We supply, install, and service hot water systems from Australia's most trusted manufacturers. Partnering with industry leaders ensures you receive top performance, reliability, and robust product warranties.
Your Hot Water Questions Answered
The cost depends on the system type, its capacity, and installation complexity. A straightforward electric storage replacement starts from around $X,XXX installed, whereas highly efficient heat pump and solar setups are higher upfront but deliver substantial power savings over time. Call our team on 8360 9622 for an upfront, accurate quote.
Solar-boosted hot water systems draw most of their energy from the sun, making them extremely cheap to run. Heat pumps are a very close second, utilising ambient air heat to use up to 65% less electricity than standard electric cylinders. Both systems are highly effective in Melbourne and qualify for valuable government rebates.
Gas systems use a burner to heat water quickly and can deliver continuous flow without storing a tank. Electric storage systems use a heating element to warm water inside a cylinder. Natural gas is typically highly economical to run, but high-efficiency electric systems like heat pumps are now the premier choice when transitioning away from gas and electrifying your home.
Storage systems maintain a cylinder of hot water at all times. Continuous flow (instantaneous) systems only heat water when a hot water tap is turned on. Storage units are great for rapid high-flow delivery, while continuous flow units never run out of hot water and occupy significantly less physical space.
Yes. Regular preventative maintenance by a licensed plumber — including testing the pressure relief valves, inspecting the sacrificial anode, and clearing burners — can extend the life of your hot water system up to 15 years, while ensuring it continues to run safely and efficiently.
How It Works
Replacing your hot water system is simple and stress-free with Plum. Here is our easy four-step process.
Free Quote
Call us, SMS, or request a quote online. We provide upfront, itemised pricing with zero hidden fees and absolutely no obligation.
Same-Day Booking
Hot water system failed? Our team prioritises urgent replacements. We can often book and complete your installation on the very same day you call.
Professional Installation
Our fully licensed plumbers and gas fitters install your new system to the highest standard. We handle all connections, valves, and site preparation ourselves.
Complete Peace of Mind
We hand over your compliance certificate, activate your product warranty, and responsibly remove and recycle your old unit. You're all set.
What's Included in Plum's Pricing
No surprises, no hidden costs. Every Plum quote is fully itemised and covers everything below as standard.
Positioning, fluing, and full connection of all components to your existing plumbing and gas lines.
High-quality tempering valves, pressure relief valves, and all safety fittings required by Australian standards.
We remove, transport, and responsibly dispose of or recycle your old hot water unit for you.
Official VBA plumbing and gas compliance certificates issued for every installation — required by law.
Every Plum installation is backed by our industry-leading 6-year workmanship warranty, in addition to the product manufacturer's own warranty.
We assess your home, household size, and budget before recommending the best system for you — not just the most expensive one.
Victorian Government Rebate
Save on a Heat Pump Hot Water System Through the VEU Program
The Victorian Energy Upgrades (VEU) Program provides substantial government rebates when you upgrade from an electric or gas storage hot water system to an energy-efficient heat pump. Eligible Melbourne households can access significant upfront cost reductions, making the switch to a heat pump more affordable than ever before.
- Significant upfront rebates available for eligible households
- Plum Trade Services is an accredited VEU program participant
- We handle all rebate paperwork and eligibility checks
- Reduce your hot water running costs by up to 65%
