
Hot water systems: repair, replacement and new install
Gas, electric and solar hot water: repair, replacement and new install.
Hot water is one of the two categories Gregg is actively growing. He is one of the few Adelaide Hills plumbers whose CV covers both UK and Australian hot water systems, and that shows up on the harder jobs. The plant-room photos on the site are UK jobs on Vaillant and Ideal kit; the Adelaide work is straight tank swaps, continuous flow install, heat pump swap-outs and solar service.
Most hot water calls are one of three things. The old gas storage tank at 12 to 15 years has finally failed. The electric element has died and the replacement conversation is really about whether it is time to move to a heat pump. Or the family has grown and the old unit will not keep up with two people showering at 7am. Gregg gives the honest answer on all three, not the answer that sells the biggest unit.
What this covers
- Hot water system replacement (gas storage, gas continuous, electric, heat pump)
- Hot water repairs (elements, thermocouples, valves, anodes)
- New hot water install for renovations and new builds
- Correct sizing for the number of people in the home and peak demand
- Solar hot water service and repair
- Anode replacement to extend the life of an existing tank
How Gregg works
- 1
Diagnosis
Sometimes a hot water problem is a $200 repair, sometimes it is a full replacement. Gregg tells you honestly which one it is. He has walked away from plenty of replacement jobs that were really just a thermocouple.
- 2
Sizing
If replacement is the right call, sizing matters. Peak morning demand, not the number of bathrooms. Getting sizing right is the difference between a unit that lasts 15 years and one that runs itself to death.
- 3
The install
Full swap-out in a day for most residential jobs. New tempering valve on any change to comply with the standard. Old unit disposed of properly.
- 4
Warranty and paperwork
Manufacturer warranty is registered. Any gas work carries a compliance certificate. You get all the paperwork in one email.
Recent work



Why Gregg
UK training on complex hot water plant (Vaillant, Ideal, Worcester Bosch, unvented systems) before Australia. That is a rare CV in the Adelaide Hills. On a straight residential job, that depth shows up as a plumber who will size correctly and diagnose properly, not automatically replace.
Common questions
How much does a hot water replacement cost in Adelaide?+
A like-for-like gas storage swap is usually the cheapest option. Continuous flow gas is a step up. Heat pump is the biggest upfront gap but the running cost drops hard. Solar is expensive to install but very cheap to run. Gregg quotes properly after a site look.
Should I repair or replace my hot water unit?+
If the tank is under 8 years and the fault is an element, a thermocouple or a valve, repair almost always makes sense. If the tank is over 12 years and the tank itself is leaking, replacement is the honest answer. Gregg will tell you which one it is.
How long should a hot water unit last?+
Gas storage 10 to 15 years, electric storage 10 to 15 years, heat pump 12 to 18 years, continuous flow gas 15 to 20 years. Hard water areas like Callington drop those numbers by 3 to 5 years. Sacrificial anode replacement every 5 years extends the tank life.
Can you install a heat pump hot water system?+
Yes. Heat pumps are a good answer for most Adelaide Hills homes: cheap to run, no gas needed, and government rebates often cover a big chunk of the install. Gregg will tell you if your home is suited to one or if a different option makes more sense.
