Thermann hot water system repairs and replacement in Melton and Melbourne's west
We repair and replace Thermann hot water systems, and we can often come out the same day. Once we've looked at your Thermann, you get the price before we start any work. If you can, have a photo of the label on the tank ready.

Request a quote
Tell us what you need help with and we’ll call you back. For emergencies, please call us directly on 0448 984 771.
- Upfront pricing before work begins
- Local, owner-operated business
When your Thermann won't heat
Is the hot water switch at the board still on? Is the cold tap on the pipe into the tank open all the way? And if you're on off-peak power, has the tank simply run empty after a big night of showers and washing?

Thermann faults we fix or replace
Cold water from the hot tap
We find out if it's power, a heating part or a valve.
Cold water from the hot tapA puddle around the base
A leaking fitting can be fixed. A leaking tank can't.
A puddle around the baseThe relief valve won't stop running
A worn valve or high water pressure is the usual cause.
Rusty or brown hot water
Often the inside of the tank is breaking down.
A switch that keeps tripping
Turn it off and leave it until we've had a look.
What makes a Thermann job cost more or less
You get a price after we've seen the system and before we do anything.
A part or a whole new system
A repair is usually the smaller bill.
The replacement you pick
Thermann again, or a different size.
Access
A tank in a tight spot takes longer to swap.
Booking us for your Thermann
Call 0448 984 771- 1
Tell us what you need
Call 0448 984 771. We’ll discuss the problem and arrange a convenient time, with same-day service where available.
- 2
We assess the problem
We find the cause and explain your options clearly.
- 3
You approve the price
You receive upfront pricing and approve the work before we start.
- 4
We get it sorted
We complete the work, test everything and clean up before we leave.
Areas we cover for Thermann hot water
Thermann hot water questions
Have another question? Call 0448 984 771 – we’re happy to help.
Are Thermann hot water systems any good?
Thermann is a well-known name in Australian hot water, and it's one of the brands we fit. A good system comes down to the right type and size for your home, fitted properly. Tell us about your house when you ring, and we'll say whether a Thermann makes sense for you.
How long should a Thermann hot water system last?
It depends on how it's used and looked after. Water quality, how hard the system works and whether the relief valve gets looked at all affect it. When the tank starts rusting or leaking, it's done. Until then, a failed part can often be replaced instead of the whole system.
Is it safe to keep using my Thermann if it's leaking?
A slow drip from a fitting is usually fine for now, as long as you keep an eye on it. Water pooling under the tank, or water anywhere near the switch or a power point, is different. Switch the hot water off at the board, turn off the cold tap into the tank and ring us.
Why does my hot water smell like rotten eggs?
If the smell only comes from the hot tap, it's usually starting inside the tank. It's often a reaction between the water and a part in there that's meant to stop the tank rusting. Running the hot tap for a while can clear it for a bit. If it keeps coming back, ring us and we'll check it.
Why does my Thermann run out of hot water so fast?
If it used to keep up and now it doesn't, a failing element or thermostat may only be heating part of the tank. Built-up sediment in the bottom takes up room too. If more people live in the house than when it went in, the tank may just be too small now. We'll test it and find out which.