Gas Hot Water Installation Cost in Melbourne (2026)
In Melbourne, gas has long been the default, but the state's electrification push now makes it a real gas-or-electric decision.
Your gas hot water installation details
Your estimate sits within the typical range.
Continuous flow units never run out of hot water and take no floor space, but need adequate gas supply, storage units are simpler to retrofit on an existing gas line.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- A like-for-like gas swap on an existing connection is the cheapest option.
- Size the unit to your household, an oversized system costs more to buy and run with no benefit.
How we estimate this
Gas hot water installation in Australia typically costs $1,100 to $4,500 in 2026 depending on the system type and whether it is a swap or a new install. A continuous-flow swap on an existing gas line is cheapest; a changeover from electric with a new gas line costs the most.
Pricing reviewed: October 2026.
What a gas hot water installation costs in Melbourne
Melbourne's cold winters drive the highest hot-water demand of the capitals, and natural gas has long been the default fuel here, reticulated widely and valued for its reliable winter output. A gas storage or continuous-flow swap in a conventional home is straightforward, and the deep, competitive local trade market keeps the install keenly priced.
What is distinctive now is Victoria's electrification policy: new homes are moving away from gas and strong rebates favour efficient heat pumps, so a Melbourne household replacing a failed gas unit genuinely weighs staying on gas against switching to electric, a decision most other capitals face less sharply. That turns a simple like-for-like gas swap into a real choice, and the flue and placement on the city's period homes add their own considerations.
Compare against the national picture: Gas Hot Water Installation Cost in Australia →
Gas Hot Water Installation Cost in other cities
Frequently asked questions
How much does gas hot water installation cost in Australia?
Typically $1,100 to $4,500 in 2026. A continuous-flow swap on an existing gas line is cheapest; a new install with a new gas line costs the most.
Is gas or electric hot water cheaper to run?
Where mains gas is available, gas is usually cheaper to run than standard electric. Heat pump and solar electric can be cheaper again, but cost more upfront.