# Heat Pump Hot Water Perth | STC Rebates | HWS Perth

> Perth heat pump hot water installation. High-efficiency systems from iStore, Reclaim and Sanden, STC rebate-eligible to cut upfront cost. Free quotes, call today.

URL: https://perthhotwatersystem.com.au/heat-pump-hot-water/

![Heat pump hot water unit installed beside a Perth home](/images/misc/heat-pump-hot-water-unit-installed-beside-a-perth-.webp)

Best Value Long Term

# Energy-Efficient Heat Pump Hot Water in Perth

Last updated: 10 August 2026

High-efficiency heat pump hot water, STC rebate-eligible, cutting the roughly 25% of energy bills used to heat water.

-   verified\_user Licensed & insured
-   schedule 24/7 Emergency Service
-   request\_quote Free upfront quotes
-   verified 100% Satisfaction Guarantee

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call 08 6243 6734

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JOB TYPE

## Heat Pump

WA LICENSED verified PLUMBER & GAS

-   check\_circle High-efficiency ambient-air heat transfer
-   check\_circle iStore, Reclaim Energy and Sanden brands
-   check\_circle Federal STC rebate processing
-   check\_circle Solar PV timer integration

INDICATIVE

From $2,500

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star 4.9 (150+ Google reviews)

verified\_user Licensed & Insured

schedule 24/7 Emergency Service

task\_alt 1,000+ jobs completed

## The cheapest hot water to run, without touching your roof

Heat pump hot water is one of the most energy-efficient options available to Perth homes. It draws warmth from the surrounding air to heat your water, which slashes running costs against a conventional electric element. We install high-CoP systems from iStore, Reclaim Energy and Sanden, check placement and solar PV timer integration, and process the federal STC rebate to lower your upfront price.

The technology is a refrigeration cycle running in reverse. A fan pulls ambient air across an evaporator, refrigerant absorbs heat from that air, and a compressor raises the temperature so it can be transferred into the tank. Because the system is moving existing heat rather than generating it, its Coefficient of Performance (CoP) is typically three or more. In plain terms, one unit of electricity in produces around three units of heat out, where a conventional element manages one for one.

![Close-up of a heat pump hot water compressor and fan housing with the cover removed](/images/misc/close-up-of-a-heat-pump-hot-water-system-compresso.webp)

### Why it suits Perth specifically

Perth’s mild winters sit comfortably inside the efficient operating range of modern heat pumps, which is why we recommend them so often across our 

hot water system Perth

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 callouts. The units we install use R290 or CO2 (R744) refrigerant, both of which hold their efficiency well on cold mornings. Every unit carries an electric element as a backup for extreme conditions, and here it rarely engages.

The other Perth-specific advantage is roof independence. Solar thermal hot water is excellent, but it needs unshaded north-facing roof area, and a growing number of homes have that space filled with PV panels. A heat pump sits on the ground, needs no collectors, and does not care what your roof looks like. If you already have PV, we time the heating cycle to run during your generation window, which means most of the electricity it uses is yours rather than the grid’s.

### Placement is the decision that matters

The single biggest cause of regret with a heat pump is placement. The unit needs clear airflow to both the intake and exhaust, a level base, and a sensible route for condensate to drain. It also makes a low fan and compressor hum while heating, similar to an outdoor air conditioner. Put it under a bedroom window and you will notice it. Put it on the opposite side of the house with clear air around it and most people forget it exists.

We assess this before quoting, not after installing. Where the obvious spot is the wrong one, we cost the pipework to relocate it properly.

### Rebates and what you actually pay

Western Australia has no state hot water rebate, but the federal Small-scale Technology Certificate scheme applies to eligible heat pump systems on the Clean Energy Regulator’s register. In practice that is a point-of-sale discount, typically $800 to $1,500 or more depending on the model’s deemed savings. We create and claim the certificates as part of the job, so the reduction shows up in your quoted price rather than as paperwork you have to chase.

Installed systems run from around $2,500 to $5,500 before the rebate. After it, an entry-level heat pump often costs about the same as a decent electric storage tank while using roughly a third of the energy for the next decade.

For the detail, read 

how heat pump hot water systems work

[/guide/how-heat-pump-hot-water-works/ →](/guide/how-heat-pump-hot-water-works/)

, the current 

WA heat pump rebate and STC rules

[/guide/wa-heat-pump-rebates-stc/ →](/guide/wa-heat-pump-rebates-stc/)

, and our 

heat pump versus solar comparison

[/guide/heat-pump-vs-solar-hot-water/ →](/guide/heat-pump-vs-solar-hot-water/)

.

## What's included

-   check\_circle High-efficiency ambient-air heat transfer
-   check\_circle iStore, Reclaim Energy and Sanden brands
-   check\_circle Federal STC rebate processing
-   check\_circle Solar PV timer integration
-   check\_circle Placement and noise assessment

Transparent pricing

## How much does heat pump cost in Perth?

Federal STCs typically reduce the price by $800 to $1,500 or more at point of sale. We create and claim the certificates as part of the job.

### Entry heat pump

Integrated unit, 200L to 250L, R290 refrigerant

$2,500 - $3,400 per system installed, before STC rebate

-   check\_circle All-in-one tank and compressor
-   check\_circle STC rebate applied upfront
-   check\_circle Suits 2 to 4 people
-   check\_circle Simple like-for-like swap

Get a Free Quote

[/contact/ →](/contact/)

Most common

### High-efficiency

Higher CoP, quieter operation, PV timer ready

$3,400 - $4,600 per system installed, before STC rebate

-   check\_circle Better cold-morning performance
-   check\_circle Solar PV timer integration
-   check\_circle Lower noise output
-   check\_circle Larger storage options

Get a Free Quote

[/contact/ →](/contact/)

### CO2 premium

Split CO2 (R744) systems, top-tier efficiency

$4,600 - $5,500 per system installed, before STC rebate

-   check\_circle CO2 refrigerant, very high CoP
-   check\_circle Split compressor, quietest option
-   check\_circle Long warranty terms
-   check\_circle Best lifetime running cost

Get a Free Quote

[/contact/ →](/contact/)

Prices are indicative only. Every job is quoted upfront and in writing after we check your site, so there are no surprises. Low-interest financing is available on larger upgrades.

Why us

## Why choose Hot Water System Perth for heat pump?

savings

### Roughly a third of the energy

A heat pump moves heat from the air rather than generating it, so it does the same job on a fraction of the electricity an element uses.

handshake

### STC rebate processed

We create and claim the federal certificates, so the $800 to $1,500-plus discount is already in the number you are quoted.

engineering

### Placement done right

Airflow, noise and condensate drainage decide whether you love or resent the unit. We assess all three before recommending a spot.

bolt

### PV timer integration

Already have rooftop solar? We set the heating window to line up with your generation, so most of the run cost disappears.

verified\_user

### iStore, Reclaim and Sanden

We install established brands with local parts support, including CO2 (R744) split systems where top-tier efficiency matters.

local\_shipping

### No roof work needed

Unlike solar, a heat pump sits at ground level. No collectors, no roof loading, no problem with shading or a PV-covered roof.

Process

## How our heat pump works

01 search

### Placement assessment

Heat pumps need airflow and should sit away from bedroom windows. We find the spot that works acoustically and thermally before quoting.

02 request\_quote

### Size and rebate

We size on household demand, check STC eligibility against the Clean Energy Regulator register, and deduct the rebate from your quote.

03 build

### Remove and install

The old tank is drained, removed and recycled. The new unit is set on a level pad, connected, and the condensate drain run correctly.

04 task\_alt

### Commission and time it

We set the timer to run during the warmest part of the day, or your solar generation window, then issue the compliance certificate.

## Need heat pump in Perth?

Free written quote, licensed plumbers, 24/7 for emergencies, backed by our 100% satisfaction guarantee.

call 08 6243 6734

[tel:+61862436734 →](tel:+61862436734)

 

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Our work

## Heat Pump jobs around Perth

Real jobs from around the metro. Click any image to enlarge.

 

 

Results

## See the difference

![Before: Heat Pump transformation](/images/features/old-electric-storage-hot-water-tank-at-the-side-of.webp) Before

![After: Heat Pump transformation](/images/features/new-heat-pump-hot-water-system-installed-in-the-sa.webp) After

Heat Pump transformation

## How Hot Water System Perth compares

| Feature | Typical provider | HWS Perth |
| --- | --- | --- |
| Running cost vs electric storage | Full element consumption | Around a third of the energy |
| STC rebate | Customer claims separately | Created, claimed and deducted upfront |
| Placement | Wherever the old tank was | Assessed for airflow, noise and drainage |
| Solar PV integration | Not configured | Timer set to your generation window |
| Roof work required | Needed for solar thermal | None, ground-level install |

Reviews

## What customers say about our heat pump

Rated 4.9 from 150+ Google reviews across the Perth metro.

starstarstarstarstar

> "Switched us to a heat pump and sorted the rebate paperwork so the upfront cost was way lower than expected. Power bill has genuinely dropped."

Priya S. Stirling

starstarstarstarstar

> "They moved it away from the bedroom wall and onto the other side of the house. Barely hear it now. Glad they raised it before installing."

Andrew J. Balcatta

starstarstarstarstar

> "We already had PV so they timed the heating to run mid-afternoon. The hot water is essentially free most of the year now."

Fiona C. Gosnells

Got questions?

## Heat Pump FAQs

### How does a heat pump water heater actually work?

expand\_more

It works like a fridge in reverse. A fan draws in ambient air, a refrigerant absorbs heat from it, and a compressor raises that heat to a useful temperature which is transferred into the water. Because it moves existing heat rather than creating it with an element, it delivers the same hot water on roughly a third of the electricity.

### Do heat pumps work in Perth winters?

expand\_more

Yes. Perth's mild winters sit comfortably within the operating range of modern heat pumps, and units using R290 or CO2 (R744) refrigerant maintain a strong Coefficient of Performance even on cold mornings. Every unit also has an electric element as a backup for extreme conditions, which rarely engages here.

### Are heat pump hot water systems noisy?

expand\_more

They produce a low fan and compressor hum, similar to an outdoor air conditioner unit, and only while heating. It becomes a problem when the unit is placed under a bedroom window, which is why we assess placement first. On most properties there is an obvious spot where it is simply not noticeable.

### What rebate is available on heat pumps in WA?

expand\_more

Western Australia has no state rebate, but federal Small-scale Technology Certificates apply to eligible systems. In practice that is a point-of-sale discount of roughly $800 to $1,500 or more depending on the model and its deemed savings. We create and claim the certificates so it comes off your quote directly.

### How much does a heat pump hot water system cost in Perth?

expand\_more

Installed systems generally run between $2,500 and $5,500 before the STC rebate, depending on capacity, refrigerant type and brand. After the rebate, an entry-level unit often lands close to the cost of a good electric storage tank while costing a fraction to run.

### How much will a heat pump save me?

expand\_more

Water heating accounts for roughly 25% of a typical household's energy bill. Replacing electric storage with a heat pump typically cuts that portion by around two thirds. Actual savings depend on your tariff, household size and usage pattern, and we can estimate it against your current bill.

### Can I run a heat pump off my solar panels?

expand\_more

Yes, and it is the best way to use one. We set the timer so the heating cycle runs during your peak solar generation window, usually the middle of the day. That means most of the electricity it uses is your own rather than grid power.

### Where can the unit be installed?

expand\_more

Outdoors, with clear airflow around the fan intake and exhaust, on a level pad, with somewhere sensible for the condensate to drain. Manufacturer clearances vary but generally you need a reasonable air gap on the intake side. Corners, tight alcoves and enclosed cupboards do not work.

### Heat pump or solar hot water, which is better?

expand\_more

Solar wins where you have unshaded, north-facing roof space and want to use sunshine directly. A heat pump wins where the roof is shaded, structurally limited or already covered in PV panels, since it needs no roof work at all. Both attract STC rebates and both slash running costs against electric storage.

### How long do heat pump hot water systems last?

expand\_more

Typically 10 to 15 years, with the compressor the key component. Warranties vary by brand and are generally stronger on the premium CO2 units. As with any tank system, keeping the sacrificial anode rod in good condition matters in Perth's hard water.

### Still have a question?

Talk to a licensed Perth plumber. No call-out surprises, no obligation.

Get a Free Quote

[/contact/ →](/contact/)

 

Call 08 6243 6734

[tel:+61862436734 →](tel:+61862436734)

## Related guides

Detailed answers to the questions we get asked most about heat pump.

Explainer

### Heat Pump vs Solar Hot Water: Which Saves More in Perth?

Heat pump or solar hot water for your Perth home? Compare upfront and running cost, roof-space needs, climate performance and how rebates apply to each.

[Heat Pump vs Solar Hot Water: Which Saves More in Perth? →](/guide/heat-pump-vs-solar-hot-water/)

Explainer

### How Heat Pump Hot Water Systems Work

Heat pump hot water draws warmth from the air to heat with a fraction of the energy. How CoP, refrigerant and PV timers make it efficient in Perth.

[How Heat Pump Hot Water Systems Work →](/guide/how-heat-pump-hot-water-works/)

Decision guide

### WA Heat Pump Rebates 2026: Federal STCs Explained

Western Australia has no state hot water rebate, but federal STCs cut heat pump and solar prices at point of sale. Eligibility and how it is applied in 2026.

[WA Heat Pump Rebates 2026: Federal STCs Explained →](/guide/wa-heat-pump-rebates-stc/)

## Related services

![Solar hot water collectors and tank mounted on the tiled roof of a Perth home](/images/misc/solar-hot-water-collectors-and-tank-mounted-on-a-t.webp)

### Solar Hot Water Systems

Roof-mounted and split solar hot water with gas or electric boosting, STC-eligible, ideal for Perth's climate.

[Solar Hot Water Systems →](/solar-hot-water/)

![Licensed Perth plumber installing a new hot water system on the exterior wall of a suburban home](/images/misc/licensed-perth-plumber-mounting-a-brand-new-hot-wa.webp)

### Hot Water System Installation

Supply and compliant installation of new hot water systems, sized right, installed to WA code, with free old-tank removal.

[Hot Water System Installation →](/hot-water-system-installation/)

![Perth plumber servicing an electric storage hot water tank with the element access panel open](/images/misc/perth-plumber-working-on-an-electric-storage-hot-w.webp)

### Electric Hot Water Systems

Instantaneous and storage electric hot water, single and dual element, off-peak ready, installed and repaired across Perth.

[Electric Hot Water Systems →](/electric-hot-water/)

Free tool

## Try our Hot Water Running Cost Calculator

See what a heat pump could save you each year compared to standard electric storage.

Use the calculator

[/tools/energy-cost-estimator/ →](/tools/energy-cost-estimator/)

![](/images/hero/licensed-perth-plumber-in-work-polo-finishing-a-ho.webp)

24/7 emergency call-outs available

## Ready to book heat pump?

High-efficiency heat pump hot water, STC rebate-eligible, cutting the roughly 25% of energy bills used to heat water. Free upfront quote, no obligation.

Get a Free Quote

[/contact/ →](/contact/)

 

call 08 6243 6734

[tel:+61862436734 →](tel:+61862436734)

-   check\_circle Fully licensed & insured plumbing and gas professionals
-   check\_circle All major Australian & German brands serviced
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