Heat Pump Installation
in Melbourne & Regional Victoria
From site assessment to first hot shower. Supply Solar's CEC-accredited electricians handle the full heat pump installation — sizing, gas isolation if needed, electrical work and rebate paperwork — in a single visit, with one fixed price agreed before we start.
Get Your Free Installation Quote
We'll assess your site and give you a fixed price
No obligation · Rebate eligibility confirmed free
What's Involved in a Heat Pump Installation?
Correct location & clearance
Heat pumps need airflow on all sides and must meet noise setback rules from neighbouring windows. We confirm a compliant spot on a slab or bracket during your assessment.
Dedicated electrical circuit
A new circuit is run from your switchboard to the unit — the compliant standard for heat pump hot water systems, installed by our CEC-accredited electricians.
Gas isolation, if switching
Replacing a gas system? Our licensed gasfitter safely disconnects and caps the existing line as part of the same visit — compliant with Victorian regulations.
What Size Heat Pump Do I Need?
Correct sizing is the single biggest factor in day-to-day satisfaction — undersized means running out of hot water, oversized wastes money. Here's the standard sizing guide.
| Household size | Recommended tank capacity | Typical daily usage | Notes |
|---|---|---|---|
| 1–2 people | 170–200L | ~120–160L/day | Smallest footprint, lowest running cost |
| ⭐ 3–4 people | 250–270L | ~200–260L/day | Most common size for Melbourne families |
| 5+ people | 315–400L | ~280–350L/day | Suits large households or high-demand periods |
| High-demand households | 2× units or 400L+ | 350L+/day | Multiple bathrooms, spas, or back-to-back showers |
A starting guide only — Supply Solar confirms the right size from your actual household size, fixtures and usage patterns during your free assessment.
What Does Installation Actually Cost?
A fully installed heat pump hot water system in Melbourne typically costs $2,500 to $4,500 before rebates. Here's what drives the difference.
Electric Storage → Heat Pump
Replacing an existing electric storage system in the same location. The most straightforward, fastest scenario for most Melbourne homes.
- Old system removed and disposed of
- New unit, electrical circuit, plumbing connection
- Usually completed in 3–5 hours
Gas Storage → Heat Pump
Full electrification — gas isolation, new electrical circuit and heat pump installation, all handled by our licensed team in a single visit.
- Everything in the standard replacement, plus
- Licensed gasfitter isolates & caps the old gas line
- Typically 5–7 hours, one team, one visit
Heat Pump Rebates We Apply for You
Two Victorian incentives reduce the installed cost of a heat pump hot water system — and Supply Solar confirms your eligibility and lodges both at the time of installation.
Solar Homes Program
Solar Victoria's hot water rebate is available to eligible owner-occupiers replacing an electric or gas storage system with a heat pump. Income limits apply: the cap drops from $210,000 to $150,000 on 1 July 2026.
Full rebate eligibility guide →Victorian Energy Upgrades (VEU)
The VEU program provides a point-of-sale discount on heat pump hot water systems installed by accredited providers like Supply Solar. The exact discount varies by product and is applied directly to your invoice — no claim required from you.
Can I combine both rebates? →Installation Requirements & Compliance
Heat pumps aren't a drop-in swap for every hot water system — location, clearance and electrical capacity all matter. We check all of it during your free assessment, before you commit to anything.
Old system removal, disposal, and full compliance certification are included in every installation — no separate call-out needed.
Book a Free AssessmentAirflow clearance
Heat pumps need open space on all sides to draw in air efficiently — we confirm your chosen spot has enough clearance before installing.
Noise setback compliance
Victorian regulations set minimum distances from neighbouring windows based on the unit's noise rating. We check this as part of every site assessment.
Electrical capacity check
We confirm your switchboard has room for a dedicated heat pump circuit — flagging any upgrade needed before your fixed-price quote is finalised.
Old system removed & disposed
Your old electric or gas system is removed and responsibly disposed of as part of the installation — one less thing to organise.
Pair Your Heat Pump With Solar — and Run It for Free
Set and forget: hot water from sunshine
A heat pump can be programmed to run between 10am and 3pm — when a typical solar system is generating peak surplus electricity. Your panels power the heat pump, which heats your water, at effectively zero cost.
Add a home battery and the heat pump can run from stored solar in the evening too — giving you near-complete energy independence for hot water, year-round.
Add Solar to Your QuoteEstimates based on Melbourne tariffs and average 4-person household. Actual results vary.
Your Heat Pump Installation — Step by Step
Free assessment
We check your current system, location, and electrical setup, and confirm which rebates you qualify for — at no cost.
Fixed-price quote
One clear price covering the unit, installation, electrical work, gas isolation (if needed), and rebate lodgement. No surprises.
Installation day
Most heat pump installations take 3–5 hours. We remove the old system, install the new unit, and connect to your existing plumbing and electrics.
Rebates applied, hot water on
We lodge the Solar Homes rebate and VEU discount at installation. You start saving from the first cycle — that day.
Accredited, Award-Winning & Fully In-House
CEC-accredited & NETCC approved
Every heat pump installation is completed by our own CEC-accredited electrical team — not a subcontractor. Your rebates, warranties and compliance are protected.
Award-winning installer
Winners of the 2023 CEC Collaboration Award and 2024 EUPD Australian Installer Award — independent recognition of installation quality and customer experience.
Solar + heat pump in one team
We design your heat pump to work with your solar from day one — no separate trades, no awkward handoffs. One quote covers everything.
Rebates handled, not just mentioned
Many installers list rebates but leave the paperwork to you. Supply Solar confirms eligibility upfront and lodges the Solar Homes rebate and VEU discount at installation — you receive them on the day.
Heat Pump Installation Near You
We install heat pump hot water systems right across greater Melbourne and regional Victoria.
What Melbourne Homeowners Say
"Replaced our old gas hot water system with a heat pump. Supply Solar handled the gas isolation, the electrical work, and the Solar Homes rebate — all in one day. First electricity bill was noticeably lower."
"We got solar and a heat pump at the same time. They set the heat pump to run at midday from our panels. Our hot water is basically free now — and the $1,400 rebate came off the install price on the day."
"Electric storage was costing us a fortune. Supply Solar replaced it with a heat pump — VEU discount applied on the day, job done in 4 hours. Very professional, explained everything clearly."
Heat Pump Installation FAQs
What size heat pump hot water tank do I need?
Where can a heat pump hot water system be installed?
Do I need an electrician for a heat pump hot water installation?
How long does heat pump installation take?
What happens to my old hot water system?
Can a heat pump be installed on an apartment or unit?
What's included in the installed price?
Related Pages
Heat Pump & Hot Water Pages
Ready for Your Fixed-Price Install?
Get a free, no-obligation heat pump installation quote. We'll assess your site, confirm sizing, and give you one fixed price — no surprises.
No obligation · Up to $1,400 rebate + VEU · CEC-accredited · Melbourne & Regional Victoria