Service Areas

0407 837 729 02 9191 7374 BOOK NOW

Service Areas

Call Now

Book Now
Pure Plumbing Professionals Logo
Local Business Awards
We're here to help during covid-19

Cost of hot water systems

Which hot water system is right for you?

Your budget will have a big influence on the type hot water system you choose to replace an old unit or install when building your home.

Whether you're upgrading an old hot water system or installing a new setup deciding which system to go with can be daunting. Despite the difficulty don't be tempted to just throw in the same model you had before, you could be missing out on significant energy savings. The choice should not be made without examining all possibilities as you're likely to be stuck with your decision for a long time.

Anyone who has lived in a home where the hot water system (HWS) doesn't cope with the demand knows that the wrong HWS can mean a bothersome daily argument around who used all the hot water.

Fortunately (or unfortunately) there is an abundance of options to choose from.

One of the first points to consider is your power source choices include, gas, electricity, solar, or heat pump. To help narrow down the alternatives there are several points you will need to consider.


Get professional help, book a great Sydney plumber here

Compare the cost of hot water systems

Cost of a gas hot water system

Many residents of Sydney have access to natural gas however if this is not available to your home LPG is still an option and can be cheaper than electricity. Installing an LPG gas hot water heater requires arranging for periodic gas bottle replacements.

A definite advantage of using gas is the price constant throughout the day so you don't need to worry about peak tariffs or running out of water from off-peak connections.

Gas hot water systems are divided into storage and instant styles, and then further into natural gas or LPG. The cost variation between natural gas and LPG at purchase is minimal, however, the running costs for LPG powered hot water systems are often higher.

  • Average price of a gas storage hot water system - $800 to $1500^
  • Average price of a gas instant hot water system - $450 to $220^

Cost of electric hot water system

Electric storage hot water systems are probably the most low-cost option to buy, however, they can be the most expensive to run depending on your household needs. Electricity is readily available in most homes which usually means a straight forward swap over if you already have an electric system.

Often electric HWS units have the option of being connected to an off-peak tariff to reduce power costs, however, make sure the tank is large enough to provide hot water for the whole day to avoid running short and that off-peak electricity is available to your home.

Electric storage units range from compact 10L under kitchen bench models suitable for a single tap to large family, multiple bathroom 400L units.

  • Average price of an electric hot water system - $200 to $1500^
Hot Water System Comparison

Typical cost of solar hot water system

Unless you live in a cave underground (or in an apartment) solar is probably available to you, Australia is lucky to have an abundance of sunshine, even during the winter, which makes solar a popular eco-friendly choice. Modern solar HWS are effective even during cold weather and on overcast days.

The effectiveness of a solar hot water system in your home will depend on the direction your roof faces (north facing is ideal but not essential), the shading it receives through the day from other buildings and trees, as well as the amount of usable roof space your home has.

Solar hot water heaters are fitted with a booster system for cloudy days which is usually gas or electricity powered.

STC rebates* can reduce the purchase cost of a solar hot water unit, check with the place of purchase for the individual rebate available.

  • Average cost of a solar hot water system - $2000 to $7000^

Price of a heat pump water heater

Heat pump hot water systems are fairly new to the Australian market and have been getting mixed reviews here, however, other countries, even those with very cold climates, have used them to great effect. Ensure the model you purchase is designed to work well in the cooler conditions of Sydney.

Heat pump systems work by extracting warmth from the surrounding air or the ground to heat the water. They use electricity to do this, much like a refrigerator but are around three times more efficient than a traditional electric HWS, meaning big savings on running costs. Just like solar HWS, they're fitted with a booster for very cold days.

This style is a great renewable energy option for homes without suitable roof space for a solar hot water unit.

  • Average cost of a heat pump water heater - $2000 to $5200^

Hopefully, this information will set you in the right direction when choosing which hot water system is right for your budget and is most suitable for your home. If you are unsure of which system is right for your home or what your options are, speak to your local plumber for specific advice for your home.

*as at the time of publishing.

^hot water system cost averages sourced from a review of major Australian hot water retailers. Prices correct at the time of publishing and should be used as a guide only.

Need more help with your hot water system choices? Contact our experienced hot water team at 9191 7374 or book in our online hot water request form today.

  • Fixed Prices
  • Hot Water Trade in Deal
  • 10% Pensioner Discount
  • $50 Off for Mention
  • $0 Callout Fee
  • Same Day Service
  • 10% Off for Booking Online
  • $129 Drain Clean
  • All Work Guaranteed

Pure Plumbing Professionals Reviews


56 reviews

See what our clients are saying about our plumbers

  • Cassandra whitfield from
    Services: Drainage Solutions

    Just a note to acknowledge the amazing service provided to us recently by Jeremy and his team. Following on from the unfortunate experience of a blocked sewerage pipe we were informed by another company that we required a boundary trap replacement and, accordingly, were provided with a quote of i...

  • Graeme jones from
    Services: Drainage Solutions, Services: Emergency Plumber

    Was not having a Good Friday with a seriously blocked drain problem. Called Pure Plumbing and extremely pleased with the service provided. In the first instance the public holiday call out fee was much more reasonable than others we had called. The plumber arrived within an hour - and even called...

  • Greg hill from
    Services: Plumber, Services: Hot Water

    Thank you for your fast service fixing our leaking shower taps.

  • Gregg from
    Services: Plumber, Services: Hot Water

    Perfect. Thank you once again for all of your great work. The attention to details and quality of craftsmanship shows in your work. I’m truly grateful that you guys are my plumbing team.

  • Heather from
    Services: Plumber

    Hi Jerram A massive thank you for sending Michael to fix our toilet and main bathroom taps - it is a huge change to have working plumbing!!! Can’t thank you guys enough. Have a great day Heather 😊

View All Reviews


Do you need immediate help with serious plumbing & drainage problems in Sydney?

Our Plumbing Awards

Local Business Awards

Our Plumbing Clients

  • logo-bresic-whitney
  • logo-bunnings
  • logo-cbm
  • logo-forest-lodge-hotel
  • logo-laing-simmons
  • logo-lj-hooker
Have a plumbing emergency?
Click to call now

Job Booking Form

Important: If you need your job completed quickly or if it is an emergency please phone us on 0407 837 729. This number is will connect you directly to one of our plumbers 24 hours a day.

By filling in the form below we will assume that your enquiry is not an emergency.

Contact Information
Convert to Job Booking Request
Job Information
Emergency Plumber
Gas Fitter
Hot Water
Drainage Solutions

Your Local COVID Safe Plumbers

Pure Plumbing Professionals are still your go to 24 hour plumber service. We adhere to the latest covid-19 safety policy and procedures set by the government.

Important: Our Plumbers all have police checks and COVID vaccinations for your peace of mind.

For your health, safety and peace of mind we have implemented no touch tradesman visits. This also includes keeping a minimum of 1.5 metres of separation as well as wearing protective equipment and washing and sanitising our hands before, after and during our visit.

As always we will clean up after ourselves leaving your home the same if not better than when we arrived.

If you are experiencing a plumbing emergency then call your local 24 hour plumbers on 0407 837 729.

Book a Plumber

Customer Rating