We will be closed for the holidays from Friday, 22 December 2023 and reopening on Tuesday, 8 January 2024.
Kindly allow extra time for our team to process your hot water upgrade as we’re receiving high volumes of applications.

The Green Guys Group Heat Pump Hot Water Upgrade

Upgrade to an energy-efficient heat pump hot water system and save up to 70-80% on your hot water costs. You could be eligible for subsidised upgrade funded under the Federal Government Small-scale Renewable Energy Scheme, Victoria Energy Upgrades Program, Solar Victoria, or New South Wales Energy Savings Scheme, which makes it easier for Australian households and businesses to make the switch from power-hungry appliances to better energy-efficient alternatives and save on energy costs. Apply below to find out how your household or business could access all the available government subsidies.

What our customers say...

“Nothing but professional from the start to finish. Supported from the application process to the professionalism, knowledge about the system and even through the insulation of the system with the plumber. Great system and love not having to stress about 3-minute showers for our family of eight and no more massive electricity bills! Thank you Green Guys Group!”

Abbie B.

“We would love to thank the team from the Green Guys for the fantastic installation of our new hot water system. The plumber, Josh, and his electrician were amazing, and it’s quite refreshing to have a team of trades who explained everything and actually cleaned up after themselves. Oh, by the way, the system is quiet and the water is HOT!

Sammi & Stevie

​“The installation went very well – your team was very respectful and professional. Really appreciate your assistance in sorting out our hot water system. The system is working really well – had 4 adult visitors staying with us last week and the heat pump coped without a hiccup.”

Tony J.

​“Arrived earlier than expected, so finished earlier too. Very professional, and did a great job. We now actually have hot hot hot water – yay!! Couldn’t be happier.”

Jill Q.

“The guys did a great job with the installation by the way, and it’s running like a bought one.”

Chris E.

​“Just had ours done at Cape Woolamai. More than happy with your crew that came out. Thank you.”

Alanna U.

​“The heat pump upgrade has been installed and the installation was performed by excellent tradespeople. Along with the cheaper running costs, we were able to have it supplied and installed at zero cost, thanks to The Green Guys.”

Ian G.

​“Happy with the new system, cheap to run and always got hot water.”

Clint M.

Just 3 simple steps to start saving!

Register online - The Green Guys Group
Register online

Complete a short application form by clicking one of the buttons below according to the type of your premises.

Online confirmation - The Green Guys Group
Confirm details

Tell us more details on your current water heater and our team will confirm the government subsidies you're eligible for.

Installation - The Green Guys Group
Schedule installation

Once your upgrade is confirmed, our team will be in touch to set a suitable day & time to install your new, heat pump water heater!

Why upgrade to a heat pump water heater?


By transferring heat from the air to heat water, a heat pump is the most energy-efficient water heating system.


Since the heat pump system doesn’t use electricity to heat water directly, it uses much less electricity and saves you on energy costs.


No solar panels, inverters, gas lines or canisters are needed. Rain, hail or shine, you can enjoy piping hot water anytime!


In addition to reducing your carbon emissions, the heat pump system does not emit any harmful gases into the atmosphere.

Cut your hot water costs by with energy efficient heat pump hot water systems!

Hot Water Running Costs Comparison Chart - Sustainability Victoria - The Green Guys Group

Data sourced from Victorian Government Sustainability Victoria site – June 2023 Water Heating Running Costs Comparison; comparing running costs of 6-star natural gas instant system, 4-star natural gas storage system, electric instant system on peak tariff, electric storage system on peak tariff, and a high-efficiency heat pump hot water system on off-peak tariff for an average consumption of 150L per day (4-person household).

Frequently Asked Questions

Do you provide financing option?
Yes! We’ve partnered with Brighte, and can now offer a no-deposit, 0% interest payment plan for hot water upgrades in Victoria.

• Get pre-approval in minutes
• Choose between 12, 18 and 24 months repayment term
• Fortnightly repayments

Make your switch today, apply now or get in touch with our team on 1300 511 875.

Approval criteria, fees, terms and conditions apply.

Do you service my area?
We currently service customers in the following areas

VIC (households & businesses): Greater Melbourne, Bairnsdale, Ballarat, Bass Coast, Bendigo, Geelong, Mildura, Mornington Peninsula, Shepparton, Wangaratta, and their surrounding suburbs.

NSW (only businesses): Greater Sydney, Newcastle, Wollongong

We are always expanding our service areas, so if the list doesn’t include where you are yet, you could still apply and we will let you know when we’re in your area!

How does the heat pump system work? How is it so energy efficient?
Heat pump water heating systems work in a similar way to reverse-cycle air conditioners when they are run on a heating cycle, but heating water instead of the air inside your premises.

These systems are also known as “air-source heat pumps” because the heat is generated from the surrounding air. While heat pump systems do not require an electric or gas booster, they do use electricity to operate the evaporator fan and compressor in the water heating process.

Since heat pumps transfer heat from one place (air) to another (water), and no extra energy is used to create new heat, it is up to 4X more energy-efficient than the traditional electric water heaters.

  1. Heat pump hot water system draws thermal energy from the surrounding air (even when it’s a rainy or cold day!)
  2. Heat flows through the condenser coils that transfer the heat from the air to cold water in the tank
  3. Warm air is compressed, increasing its temperature and heating the water up
  4. Cold air is released from the system, and piping hot water is stored in the tank – ready for you to use!

Why does the heat pump need to be outside?
Heat pump systems require adequate airflow, very similar to a split system air-conditioning unit, which is why they need to be installed outside.

For upgrades at business or commercial premises, the heat pump can be installed in an indoor space with at least 60 square meters or 80 cubic metres (for example, warehouse space with high ceilings)

I'm renting, can I still get an upgrade?
Yes, as long as we have approval from your landlord and your current system is eligible for the upgrade.

Our team is more than happy to help discuss this opportunity with your landlord or property manager!

Please note that we currently only provide household hot water upgrades exclusively in Victoria.

Can I get an upgrade for my holiday/investment property?
Absolutely! We do need to see a few photos of the existing hot water system and electrical switchboard to confirm that it’s eligible for the upgrade, so make sure you take some photos the next time you visit that property.

Please note that we currently only provide residential hot water upgrades exclusively in Victoria.

I live in an apartment, can I get this upgrade?
Unfortunately, the heat pump requires plenty of space outdoors which is often not feasible in individual apartment units.

However, if your apartment building has central water heating that is shared by the whole building, we can potentially look into it. Please advise your building or strata manager to get in touch with our team directly at support@greenguysgroup.energy or 1300 511 875.

Are the installers qualified tradespeople?

We partner with your local electricians and plumbers who are licensed and qualified to install heat pump hot water systems.
All of our installations are done under the strict guidelines of the Victorian ESC (Essential Services Commission), Victorian Building Authority (VBA), Energy Safe Victoria (ESV), NSW IPART (Independent Pricing and Regulatory Tribunal) and New South Wales Fair Trading. With each hot water upgrade, we provide a document specific to the address, stating that the installation is compliant.
The Green Guys Group has been operating for over 10 years with more than 10,000 commercial and residential energy upgrade projects completed across Australia. We are ISO accredited for Quality Management, Occupational Health & Safety, as well as Environment. Rest assured you’re in great hands!

Is the heat pump water heater noisy?

Our heat pumps are engineered to operate at low noise levels – nothing more than the noise level of the air-conditioning unit outside your house.

I have solar PV panels, will this affect the heat pump?
Our heat pumps come with a built-in timer so you can set the water heater to run only during your peak solar generation timing (i.e. 10 am–4 pm). This means that the heat pump will be operating on your solar-generated electricity, reducing or even eliminating the cost of heating your water each day.

Many homes are not fully utilising solar-generated electricity and the excess power is sent back to the Grid. The solar feed-in tariff, which is the amount you get for the excess power, is reducing rapidly. This UNSW study finds that it is best to store excess solar in a thermal form in your hot water storage tank compared to a battery. No need for a $10,000 battery storage or an electric vehicle to store your excess solar energy!

Please note that we currently only provide household hot water upgrades exclusively in Victoria.

Does the heat pump come with warranties?
Yes, they’re ranging from 5-7 years depending on the heat pump water heater type and manufacturer you’ve chosen.

For extended warranty options, please get in touch with our team at 1300 511 875 or enquiries@greenguys.com.au

Do you provide air conditioning upgrades?
Unfortunately, we don’t offer air conditioning upgrades at the moment.