Updated October 2026
Arthurs Seat is the high ground above Dromana, a steep bush escarpment of winding roads, long driveways and houses built into the slope for the view. It is the hardest terrain on the Peninsula to work on. Mornington Hot Water is a free referral service. We connect you with licensed hot water plumbers who cover Arthurs Seat. We are not a plumbing business ourselves, and the referral costs you nothing.
Access is the job
Getting a 250L tank down a steep driveway, around the side of a house built into a slope and out again with the old one is most of the labour on any Arthurs Seat replacement. The appliance costs the same as it does on the flat, the time does not. Photos of the unit, the path to it and where a van can park turn a vague quote into an accurate one.
Energy supply is the second factor. Mains gas does not reach every address up here, so bottled LPG and all-electric systems are common, and that shifts the comparison toward heat pumps on a replacement.
Cold mornings are the third. The escarpment gets frostier than the coast, which modern heat pumps handle with a backup element, but it is worth asking the installer about frost protection and siting rather than assuming.
Repair it or replace it
If the tank itself is leaking, it is a replacement. Elements, thermostats and relief valves on a younger tank are often worth fixing, with repairs roughly $150 to $600 depending on the part. See hot water repairs and hot water replacement.
As a guide, electric storage like-for-like swaps run from around $800 to $2,500 installed. Gas storage and continuous flow sit around $1,200 to $3,500, and a heat pump $3,000 to $6,000 before incentives. Difficult access adds time to all of them. The cost guide has the detail.
Same-day replacement is often possible for common tank sizes when you get in touch in the morning.
Frequently asked questions
Why is my quote higher than a friend's in Dromana?
Access, almost certainly. Steep driveways, stairs and long carries add hours to a job that is straightforward on level ground.
Is a smaller unit easier to install here?
Sometimes, and continuous flow is the lightest option of all since there is no tank to move. It is worth asking whether it suits your household.