Hot Water System Installation Cost on HIREtrades

$80 - $120

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How Much Does Hot Water System Installation Cost?

Prices are intended to be used as a guide only
hot water system installation cost

The actual hot water system unit itself can be very costly and range significantly in cost depending on its type of fuel (gas, electric or solar) and capacity. Every cost will vary but typically a gas home hot water system will cost between $1,000-$1,500 to replace. You can consider supplying the new system and the plumber can simply install it.

However, if there are other obstructions or difficulties in installing your hot water system, then the price may increase with specialised persons and equipment required. The plumber’s cost to install a hot water system is around $80-120 per hour. But if your hot water installation is simple, you may be able to obtain a better rate.

The average hot water system installation costs in different states:

State Average Cost
New South Wales $100 per hour
South Australia $90 per hour
Queensland $90 per hour
Victoria $95 per hour
Western Australia $100 per hour

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Hot Water System Installation Services Cost

There are different types of water heaters, and they vary depending on the make, model, and type. Here are the different hot water system types and costs for your reference.

Electric Hot Water System Installation Service Costs

This system comes in two types: storage and instant. Instant water heaters have no tank and will use a lot of power to have water heated quickly. Prices vary from $600 to $1600 for the unit only.

The storage system, on the other hand, has tanks and uses electricity as well to heat up stored water. The tanks come in 25L, which may cost around $450 to larger sizes of 400L and more. It costs around $1900 for the unit only.

Cost for Gas Hot Water System Installation

Like the electric hot water system, it also comes in two types: storage and instant. However, they are a bit more expensive.

The instant gas water system is like electric ones. The cost varies from $750 to $1900, for the unit only, depending on the number of water outlets the unit will serve.

Gas heaters with storage tanks will cost around $850 for a 135L and ranges for about $1800 for 360L units or more. The cost does not include installation costs.

Heat Pump Hot Water System Installation Service Costs

Heat pump water systems are costly but very efficient. They function just like an air conditioner, drawing in the heat from ambient air and using it to heat the water.

While it can be costly, using this type of unit can save you money overtime. The cost of the unit starts at about $3800 for 160L to about $4500 for 315L.

Cost for Solar Hot Water System Installation Service

Nowadays, more people are shifting to solar-powered hot water systems especially in areas that are hot and sunny. These systems are more expensive to install, but they save money and energy overtime.

Solar hot water systems are installed either on your roof or as a split system with the panels installed on the roof and tanks at the ground. You can expect to pay more on labour costs because of different factors.

Roof mounted solar systems cost around $3800 to $5400 or even more. Electric boosted systems, also called split system, can cost around $3900 to $5500 or more. Gas boosted system cost about $4900 to $6500.

Installation of solar hot water systems are highly encouraged by the Australian government, and you may earn a rebate since the government can reduce the expenses by $600 to $1200.

Overall, the installation costs for both gas and electric systems are about the same, which is about $50 to $90 per hour, depending on your location.

Installation costs also vary depending on the tasks. For example, if you are going to replace an old system, it may cost you around $200 to $350 for the labour costs.

An additional $80 is charged for the disposal of your old unit. When additional valves are needed to be installed, it can cost an additional $190 to $250.

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What Factors Affect the Cost of Hot Water System Installation?

If you’re planning to have your hot water system installed, check out the following factors that might affect the cost of the installation.

Size of the hot water heater

It is vital to know the size of the water heater you need for your home. Water heaters that have bigger heater capacity or tank capacity will be more expensive than smaller ones.

Tanks vary in sizes, from 25L up to around 400L. Hence, choosing the right size will help you save in installation cost and even operating your water heater.

1. Type of water heater

There are many types of water heater systems and of course, they vary in cost. The types that you can choose from are electric, gas, solar and heat pump water system.

2. Delivery costs

Delivery costs depend on the distance and size of the hot water system. Smaller hot water systems are cheaper because they can be carried easily. Bigger ones require two or more installers to carry them which is more costly.

Additionally, you may be charged more if there are difficulties moving the system on narrow roads, steep stairs and the like.

3. Installation costs

If you are replacing an existing hot water system with the same type and position, installation costs can be cheaper. But if there are additional valves or switching from electric to gas, then expect to pay more.

Other factors like new installation, upgrade, additional plumbing or electrical work will also affect the cost including the time it will take to install the unit. So, you may have to prepare for it as well.

4. Disposal of Old Water System

Most of the installers will not remove or haul your old water unit for free. You have to pay for its removal as well. It is not that expensive, but it is something that you might be prepared for.

5. Government Rebates

You might want to consider using a solar hot water system because this is being encouraged by the Australian Government.

The government provides rebates for this type of hot water system because it is efficient and environment-friendly.

Where to Hire a Hot Water System Technician?

Getting the right hot water system technician is vital to ensure that the unit will be functioning properly for many years. With HIREtrades, you are in the right place to find the best one.

HIREtrades are ready to assist you! We have an Australian-wide selection of the best hot water system technician that can get the job done quickly and properly.

Visit our website at or download the app to post the job you need. It is simple and easy. Just post the job you require and once a tradie is available, you will get up to 3 quotes for FREE.

No complicated process! Visit us now and we will help you find the right person to do the job.

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