Water Heater Replacement Cost in Sydney (2026)
Typical price ranges and what drives the total.
Indicative AUD ranges: tank replacement roughly $1,200–$3,200 installed; tankless $2,000–$5,000. Costs vary with unit size/capacity, fuel type (gas/electric/heat-pump), location, labour rates and whether piping or venting must be updated. Always get a written quote before work starts. These are general indications, not a quote for your home.
Common questions
What is the biggest cost driver?
Labour (40–60%) plus unit cost; upgrades (venting, expansion tank, code) add more.
How long does a water heater last?
Tank units typically 8–12 years, tankless 15–20 with maintenance.
Prices are general indications, not a quote for your home. Always get a written quote before work begins.
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