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6 heat pump quote requests from Australian Capital Territory homeowners in the past 90 days

Hot Water System Cost in Stirling, ACT: Heat Pump Prices & Rebates

Replacing a gas or electric hot water system in Stirling? This guide covers heat pump pricing, because Australian Capital Territory rebates can make a heat pump one of the cheapest systems to run and cut the upfront cost sharply.

Stirling is a smaller service area, so we contact trades across the wider region to find you quotes. Tell us about your system and we will put your job in front of the closest available installers.

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$2,400 - $4,900
After rebates
$3,900 - $6,400
Before rebates
$2,500 - $20,700
Total rebates available
71%
Homes with gas

Stirling's cool temperate climate with cold winters still rewards a heat pump, though cold mornings cut efficiency - CO2-refrigerant models such as Sanden and Reclaim hold their output best here. Installed prices in Stirling currently sit above the state average.

Stirling is a quiet residential pocket in the Australian Capital Territory metropolitan area and one of the busier heat pump markets in the state.

Stirling sits above the Australian Capital Territory average for installation costs. This typically reflects larger homes, more complex installations, or a preference for premium brands in the area.

Around 71% of Stirling homes are connected to gas. Many households will benefit from switching to a heat pump, particularly those with older gas storage systems nearing end-of-life.

Australian Capital Territory Gas Ban Affects Stirling

Gas connections banned in new buildings since March 2024. ACT was the first jurisdiction in Australia to legislate a gas ban. Full gas phase-out targeted by 2045. Low-interest loans available via the Sustainable Household Scheme.

With 71% of Stirling homes connected to gas, this will affect a significant number of households in your area. Planning your replacement now lets you choose the right system on your timeline, rather than in an emergency.

Available Rebates in Stirling

Federal

Small-scale Technology Certificates (STCs)

Applied as a point-of-sale discount by your installer. Value varies by system type and climate zone.

$500 - $700
estimated value
State

Sustainable Household Scheme

Australian Capital Territory homeowners and renters (with landlord approval). A low-interest loan (3% fixed, up to 10 years, no fees), not interest-free. The maximum is $20,000 for new applicants approved on or after 1 July 2026 ($15,000 for earlier applicants). Covers heat pumps, solar, batteries, EV chargers and insulation.

$2,000 - $20,000
estimated value

Recommended Brands for Stirling

iStore

Budget-conscious households wanting maximum rebate impact and simple installation

COP: 3.2Warranty: 5yrNoise: 50dB
$2,800 - $4,400
installed, before rebates

Rheem

Homeowners who want a reliable, well-supported mid-range option from a trusted Australian brand

COP: 3.5Warranty: 5yrNoise: 48dB
$3,200 - $4,800
installed, before rebates

Stiebel Eltron

Those who value German engineering and build quality at a mid-to-premium price point

COP: 3.8Warranty: 5yrNoise: 44dB
$3,500 - $5,000
installed, before rebates

Sanden

Those who want the absolute best efficiency and longest warranty, regardless of upfront cost

COP: 5.1Warranty: 15yrNoise: 38dB
$6,500 - $8,000
installed, before rebates

Reclaim Energy

Homeowners wanting premium Australian-designed quality with the quietest operation

COP: 4.5Warranty: 10yrNoise: 37dB
$6,600 - $8,000
installed, before rebates

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Frequently Asked Questions

How much does a heat pump hot water system cost in Stirling?
A heat pump hot water system in Stirling costs between $2,400 and $4,900 fully installed after all available rebates. Before rebates, expect to pay $3,900 to $6,400. The final price depends on the brand, tank size, and complexity of your installation.
What rebates are available for heat pump hot water in Stirling?
Stirling residents can access federal Small-scale Technology Certificates (STCs) worth $500-$700 as a point-of-sale discount. Additionally, Australian Capital Territory offers: Sustainable Household Scheme ($2,000-$20,000). These rebates are typically applied by your installer at the point of sale.
Are heat pumps efficient in Stirling's climate?
Stirling has a cool temperate climate with cold winters. Heat pumps still save significant money in this climate, but winter efficiency will be lower than in warmer zones. CO2 refrigerant models are strongly recommended. Consider a larger tank size (315L+) to build up stored heat during warmer parts of the day. Running costs may be 10-20% higher than in warmer climate zones. A typical household of 3-4 people will spend $200-$400 per year running a heat pump, compared to $800-$1,200 for gas or $1,200-$1,800 for electric storage.
How does the Australian Capital Territory gas ban affect Stirling?
Gas connections banned in new buildings since March 2024. ACT was the first jurisdiction in Australia to legislate a gas ban. Full gas phase-out targeted by 2045. Low-interest loans available via the Sustainable Household Scheme. With 71% of Stirling homes connected to gas, this affects a significant number of households. The ban takes effect now. Planning your switch to a heat pump now lets you choose the best system and installer on your timeline.
How long does a heat pump installation take in Stirling?
A standard heat pump hot water installation in Stirling takes 3-5 hours for a straightforward replacement. If you're converting from gas, it may take a full day as the installer needs to connect new electrical circuits and potentially modify plumbing. Metro installers typically have availability within 1-2 weeks.
What size heat pump do I need for my Stirling home?
For Stirling in climate zone 7: 1-2 people need a 150-170L tank, 3-4 people need a 250-315L tank, and 5+ people should consider a 315-400L tank. In cooler climates like yours, sizing up one tank size is recommended to ensure adequate hot water on cold mornings.
Which heat pump brand is best for Stirling?
In Stirling's cooler climate (zone 7), CO2 refrigerant models perform best. Sanden and Reclaim Energy maintain efficiency down to -10C, while R134a models like iStore and Rheem lose efficiency below 5C. If noise is a concern (common in metro areas with close neighbours), split system models (Sanden at 38dB, Reclaim at 37dB, Daikin at 40dB) are significantly quieter than integrated units.

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Helpful Guides

Victoria Gas Ban 2027: What You Need to KnowComplete Guide to Heat Pump RebatesWhat Size Heat Pump Do I Need?Best Heat Pump Brands in Australia (2026)7 Common Heat Pump ProblemsHow to Replace Your Gas Hot Water

More About Heat Pumps in Stirling

Reclaim Energy in Stirling$6,600 - $8,000Sanden in Stirling$6,500 - $8,000Rheem in Stirling$3,200 - $4,800iStore in Stirling$2,800 - $4,400Stiebel Eltron in Stirling$3,500 - $5,000Replace Gas in StirlingReplace Electric in StirlingReplace Solar in StirlingFind Installers in Stirling

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Heat Pump Hot Water Costs Across Australian Capital Territory

Compare installation costs in other Australian Capital Territory suburbs, or see the Australian Capital Territory cost guide for the statewide picture.

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