Hot water system replacement

Same-day supply and installation throughout Sydney.

No hot water? Is your water heater leaking or becoming unreliable? Want to upgrade to a more energy-efficient system? We can help.

We stock a large range of gas, electric, solar and heat pump water heaters ready for prompt installation. Our specialists will recommend a reliable replacement suited to your household, property and budget.

Call now for fast assistance and advice you can trust. Scroll down to view recent hot water replacement jobs completed for customers.

0410 693 532

No call-out fee. Affordable rates.

Same-day replacement available.

We’ll beat any genuine quote.

Reliable, old-fashioned service.

Fast hot water system replacement across Sydney

Large range. Competitive prices. Expert installation.

Our hot water system replacement service is designed to restore your hot water as quickly as possible. We service all Sydney suburbs and carry a wide range of replacement systems ready for prompt supply and installation.

We can replace your existing gas, solar, electric or heat pump hot water system.

Our specialists will assess your household size, hot water usage, available space, energy goals and budget before recommending an appropriate replacement.

When should a water heater be replaced?

Replacement may provide better value when the storage tank is leaking or corroded, the system is more than 10 years old, parts are obsolete, repair costs are high or faults are becoming increasingly frequent.

Speak with a hot water specialist

Reduce your hot water running costs

Upgrade to an energy-efficient water heater

Replacing an ageing water heater gives you an opportunity to reduce household energy use and future hot water running costs.

Which hot water system is the most efficient for your home?

There is no single system that suits every household. We can compare electric, gas, solar and heat pump options based on your hot water usage, property, rooftop solar, available installation space and budget.

Heat pumps and solar hot water systems can offer significant energy savings. If you have rooftop PV solar panels, a suitable heat pump can also be programmed to operate during the day using electricity generated by your solar system.

You may be eligible to claim generous government rebates. Ask us how.

Eligible heat pump and solar hot water systems may qualify for government rebates and incentives. We can check your eligibility, manage the paperwork and apply available savings upfront.

Contact us for energy-efficient hot water advice »

Great value hot water system replacement

Don’t waste time and money employing multiple trades. We are licensed and qualified to undertake all the necessary work.

Hot water system replacement can involve plumbing, electrical and gas components. Depending on the system being installed, the work may require a licensed plumber, electrician or gas fitter.

Our team has the licences and qualifications required to manage the complete replacement. There is no need to arrange multiple tradespeople or wait for another contractor to complete part of the installation.

Read customer reviews »

Using one experienced team can reduce delays, avoid additional call-out fees and ensure your new water heater is installed safely and correctly.

Call 0410 693 532

What happens when we replace your hot water system?

1. We assess your needs.
We look at your existing system, your household’s hot water use and your budget, then recommend suitable replacement options.

2. We arrange the installation.
Once you’ve chosen a system, we book a convenient time and bring the new unit to your property.

3. We remove the old system.
Our team safely disconnects and removes your existing water heater.

4. We install and test the new system.
Our licensed team completes any necessary plumbing, electrical or gas work, installs the unit in accordance with the manufacturer’s instructions and applicable requirements, then tests it.

5. We clean up.
We remove packaging and rubbish and take your old system away for recycling.

6. We assist with eligible rebates.
If your new system qualifies, we explain the requirements, complete the necessary paperwork and, in most cases, apply the rebate upfront to reduce the installation costs.

7. We show you how it works.
Before we leave, we explain how to use your new system, what to watch for and answer your questions.

How much does it cost to replace a hot water system?

The cost depends on the type and capacity of the new system, the existing connections, access to the installation area and whether any plumbing, electrical or gas work is needed. Changing from one type of hot water system to another can involve additional work.

We can assess your current system, explain the suitable replacement options and provide a quote that covers the work required. If you are considering a heat pump or solar system, we can also check whether eligible rebates may reduce the upfront cost.

You may be eligible to claim a government rebate

If you upgrade to an energy-efficient hot water system, you may be eligible for generous government rebates.

Hurry, the NSW Government’s enhanced heat pump hot water incentive is scheduled to end in June 2027, but is likely to close early as allocated funding is running out.

Contact us to find out if you’re eligible.

Choosing the right replacement hot water system

Your new water heater is a long-term investment in reliable and energy-efficient hot water.

With so many systems available, it can be tempting to choose based on purchase price alone. To receive the best long-term value, your decision should consider three important factors:

Quality
Efficiency
Reliability

The correct system must also provide enough hot water for your household, fit the available installation area and suit your future energy needs.

At Cheapa Hot Water Sydney, we compare suitable systems and explain their capacities, running costs, warranties and installation requirements. Hot water is our business, and you can rely on us for practical advice you can trust.

Recent hot water system replacement jobs for Sydney customers.

Whether you want to replace your old hot water system with the same type, switch to a different system or upgrade to a more energy-efficient model, we can help. Our qualified hot water specialists have the expertise and tools to complete the replacement onsite, including the necessary plumbing, gas and electrical work, without outsourcing to other trades.

Replacing an electric hot water heater with an energy-efficient heat pump

This Randwick (Eastern Suburbs) customer’s Rheem electric hot water heater was leaking from the top. Interestingly, they had been running out of hot water but hadn’t noticed the leak. They contacted us for advice.

Once onsite, we explained that we could replace the old heater with a new, energy-efficient heat pump and take advantage of the Government rebates available to them.

Not only will they now save money on their electricity bills and reduce their environmental impact, but we were able to complete the paperwork on their behalf, so they saved money on the cost of purchasing the new heat pump and installation. It was a win-all-round for them

Gas-boosted solar hot water system replacement.

This growing family in Parramatta was regularly running out of hot water, particularly during the busy mornings and evenings. Their old Sunmaster solar hot water system with gas boost no longer had enough storage capacity to meet their needs.

We replaced the old system with a new heat pump with a much larger storage tank to accommodate the family’s increased hot water demands. The upgrade provides more hot water for those peak periods, with the added benefits of modern heat pump technology.

Replace Rheem gas hot water tank with a new model.

When a Turramurra (North Shore) customer’s old Rheem gas hot water system failed due to internal corrosion, they called us to arrange a replacement.

Their existing system had provided reliable hot water for many years, so they wanted to stay with the Rheem brand. We installed a new Rheem gas storage hot water system at the property, restoring a dependable hot water supply for years to come.

Replacement of an old and unreliable heat pump water heater.

When a customer in Manly Vale (Northern Beaches) started experiencing inconsistent hot water from their old heat pump system, they called us for advice.

Our on-site testing identified a compressor fault. Due to the age of the system, replacement parts are no longer manufactured, making a new heat pump the most cost-effective solution.

The existing tank capacity suited the household’s needs, so we installed a new Rinnai Enviroflo heat pump of the same size. The customer now has reliable hot water, with the added benefits of modern heat pump technology and improved energy efficiency.

Compact indoor electric hot water system replacement.

The owner of this Eastwood (Ryde) apartment contacted us when her indoor electric hot water system started leaking. Over the phone, we explained how to turn off the water supply to help prevent flooding in her apartment.

Once onsite, we could see there was a split in the storage tank. Repair of a split tank is uneconomical, so we recommended replacing the system.

We installed a new Vulcan DuoMax electric storage hot water system in the laundry. Wall-mounting the unit left room for a small cupboard beneath the tank, giving her valuable extra storage.

Replace rooftop solar hot water system with gas storage tank.

This Liverpool (Western Sydney) customer planned to install rooftop solar panels on their roof but was waiting until their old Solahart solar hot water system needed replacing. When it failed, they contacted us to remove the rooftop unit and install a new gas storage hot water system at ground level.

With the tools and expertise to handle the rooftop solar system removal and installation of the new gas heater ourselves, we completed it on the spot without outsourcing the work or hiring additional equipment.

We installed a new Rheem Stellar gas hot water system, including the gas connections and associated pipework. As hot water specialists, we managed the entire replacement, restoring reliable hot water and freeing up roof space for their planned solar panels.

More Customer Jobs

Hot water system prices.

Free delivery | We’ll beat any genuine quote | Supply and installation service

Take advantage of our buying power and save money when you purchase a new hot water system. We stock a large range of makes and models to ensure we can supply the right product for your requirements and budget.