Costs
How much does it cost to replace a hot water system?
Replacing a hot water system in Sydney typically costs between $1,500 and $4,000 supplied and installed. Electric storage units sit at the lower end, gas continuous flow in the middle, and heat pump or solar systems at the higher end. Site access, relocation and required upgrades affect the final price, so always get a fixed quote.
The cost to replace a hot water system varies more than people expect, because the price of the unit is only part of it. Installation, the type of system and the condition of your existing setup all matter. Terry has been quoting and installing hot water across Western Sydney since 1986, so here are honest indicative figures.
Rough Sydney price ranges (supplied and installed)
- Electric storage tank: about $1,500 to $2,500
- Gas storage tank: about $1,800 to $2,800
- Gas continuous flow: about $2,000 to $3,200
- Heat pump: about $3,000 to $4,500 before any rebates
- Solar hot water: $3,500 and up
These are indicative only. Every home is different, and the only accurate number is a fixed quote after seeing the site.
What pushes the price up
- Changing type, for example moving from electric to gas, which may need a new gas line certified by a licensed gas fitter
- Relocating the unit to a new position, meaning extra pipework
- Difficult access, such as a rooftop, tight cavity or upstairs install
- Bringing old pipework, valves or the electrical connection up to current standards
- Removing and disposing of the old unit, which a proper install includes
What can keep it lower
A straight swap, same type in the same spot with good access, is the cheapest scenario. If your existing valves and connections are sound, there is less to upgrade.
Rebates and running cost
Heat pump and solar systems cost more upfront but can attract government rebates and cut running costs significantly. Over the life of the system, a cheaper unit is not always the cheapest overall once you count the power or gas bills.
Emergency versus planned
Replacing before your old tank fails is almost always cheaper and less stressful. An emergency swap can carry an after hours fee, and a burst tank can cause water damage that costs far more than the unit. Terry works Monday to Saturday, with after hours available at a fee for genuine emergencies, though he is not a 24/7 service.
Getting an accurate figure
Terry gives a clear fixed quote before starting, so there are no surprises on the invoice. He will tell you honestly whether a straight replacement or a change of system type makes better sense for your household and budget. For a quote across Berala, the inner west or greater Western Sydney, call Terry on 0415 274 542.
Frequently asked questions
- How much does it cost to replace a hot water system in Sydney?
- Most replacements fall between $1,500 and $4,000 supplied and installed. Electric storage is cheapest, gas continuous flow sits in the middle, and heat pump or solar systems cost more upfront. The final price depends on the system type and site, so a fixed quote is best.
- Why is a heat pump more expensive to install?
- Heat pumps cost more upfront because the units themselves are more advanced. They are cheaper to run and may qualify for government rebates, so over the life of the system they can work out cheaper overall despite the higher install cost.
- Does changing from electric to gas cost more?
- Usually yes. Switching type can mean running and certifying a new gas line, extra pipework and possibly relocating the unit. Terry is a licensed gas fitter under L10959, so he can quote the full job including the gas work and compliance certificate.
- Is it cheaper to replace before the old unit fails?
- Generally yes. Planned replacement avoids after hours emergency fees and the water damage a burst tank can cause. It also gives you time to choose the right system rather than grabbing whatever is available at short notice.
- Does the quote include removing the old system?
- A proper install from Terry includes removing and disposing of the old unit. This is confirmed in the fixed quote he provides before starting, so there are no surprise disposal charges on the final invoice.
Related services
Need a hand from a real plumber?
Terry's been sorting plumbing across Berala and Western Sydney since 1986. Call 0415 274 542 for a straight answer and a fixed price.
NSW Licence L10959 · 40+ years experience