No hot water? Cylinder repairs and replacement across Auckland.
Cheap fix or a cylinder that has had its day: we tell you which, give you the price, and get the hot water back on.
Call HW Group now, or tell us what's wrong and get a quote.
- 5.0 from 25 Google reviews
- Price agreed before we start
- 027 687 3363, Open 7 days, 7am to 5pm
No hot water right now?
Before you ring anyone, two quick things worth checking:
- Electric cylinder: check the switchboard. A tripped breaker is a five-second fix and it happens more often than you would think.
- Water around the base of the cylinder, or a pipe on the roof running constantly: that is a leak or a failed valve, and it needs looking at.
If neither of those is it, call us. Tell us the cylinder type and your suburb and we will give you a time and a price.
Repair or replace? The honest answer
Not every hot water problem means a new cylinder. A failed element, thermostat or valve is a repair, and a fair bit cheaper. A cylinder that is corroding, leaking from the tank itself or well past fifteen years is a replacement, and patching it just moves the cost to next month.
We tell you which one you have got before any work starts, so the decision is yours with the price in front of you.
Signs your cylinder is on the way out
- Hot water runs out faster than it used to
- Rusty, brown or discoloured hot water
- Damp, drips or staining around the base
- Banging, rumbling or hissing as it heats
- The cylinder is over fifteen years old

What we work on
- Electric storage cylinders: repairs, elements, thermostats and valves
- Like-for-like cylinder replacements
- Low pressure to mains pressure upgrades
- Tempering valves and pressure relief valves
- Leaking cylinders and the pipework around them
Gas continuous flow and califont systems are on our gas hot water pages.
Done to code
A cylinder replacement is not just a swap. Seismic restraint, a tempering valve, a tray and drain where the cylinder sits, and the right relief valves are all part of doing it properly. Our plumbers are licensed, so the person doing the job is the person who signs it off.
How the job runs
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Tell us what's wrong
Call, or send the form with your suburb and a photo if you have one.
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Get a time and a price
We come back with when we can be there and what it will cost. The price is agreed before we start.
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A certified tradesman turns up
The person on your job is certified. No apprentices running the show.
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Fixed, certified, tidy
Work that needs certification gets it, and the place is left the way we found it.
What the reviews actually say
Bathroom vanity plumbing"We had a fantastic experience with Griff completing our bathroom vanity plumbing job and couldn't recommend him more highly. Personable, reliable and professional, with excellent communication throughout. Completed on budget with a really quick turnaround, without compromising at all on quality. The workmanship is high-end and beautifully finished."
Great price"Really happy with the service from HW Group. The team were friendly, professional and easy to deal with. Would definitely recommend HW Group!"
Great price"Amazing experience from start to finish! Communication was clear, professional, and consistent throughout the entire job."
"Great service, highly recommend!"
Kitchen and bathroom"Griffin was superb to work with. Done a superb job of my kitchen and bathroom. Would highly recommend his work."
Renovation project"The A-team when it comes to plumbing and renovation projects. Griffin project managed my development in Swanson delivered on time and on budget."
Plumbing"Incredibly professional, responsive, and easy to communicate with. Personable and efficient, smooth from start to finish."
Great price"Really happy with the service from HW Group. The team were friendly, professional and easy to deal with. Would definitely recommend HW Group!"
Great price"Amazing experience from start to finish! Communication was clear, professional, and consistent throughout the entire job."
"Great service, highly recommend!"
Kitchen and bathroom"Griffin was superb to work with. Done a superb job of my kitchen and bathroom. Would highly recommend his work."
Renovation project"The A-team when it comes to plumbing and renovation projects. Griffin project managed my development in Swanson delivered on time and on budget."
Plumbing"Incredibly professional, responsive, and easy to communicate with. Personable and efficient, smooth from start to finish."
Bathroom vanity plumbing"We had a fantastic experience with Griff completing our bathroom vanity plumbing job and couldn't recommend him more highly. Personable, reliable and professional, with excellent communication throughout. Completed on budget with a really quick turnaround, without compromising at all on quality. The workmanship is high-end and beautifully finished."
Common questions
How long should a hot water cylinder last?
Most electric cylinders give 10 to 15 years. Past that, a leak or a run of lukewarm showers is usually the cylinder telling you it is done, and repairing it starts to cost more than it is worth.
My water is hot but runs out quickly. Is the cylinder dying?
Not necessarily. A failed element or thermostat can leave you with half a tank of hot water. That is a repair, not a replacement, and we check it before recommending anything.
Why is my hot water rusty or discoloured?
Discoloured hot water usually means the inside of the cylinder is corroding. That one is a replacement conversation, and worth having before it starts leaking.
Can I just swap it for the same cylinder to keep the cost down?
Often yes, and a like-for-like swap is the cheapest option. We will tell you if the old unit no longer meets current requirements or if a mains pressure upgrade makes sense for your house.
How long does a replacement take?
A straightforward like-for-like swap is usually done in a day, with hot water back on before we leave.
Get a quote
Pick what's closest, answer a few short questions, and we come back with a time and a price.
Step 1 of 6
About a minute
What needs doing?
Something broken, or something you want installed or changed? Pick the closest.
Where can we reach you?
Your email, so we can send the price in writing.
Please enter a valid email address.
What's your name?
Please tell us your name.
Best number to call you on?
We call to confirm the time and the price.
Please enter a phone number.
Which suburb?
A suburb helps us give you a time.
What's happening, or what do you want us to do?
A sentence or two helps us come prepared.
Sending your details
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Or just call
Call 027 687 3363- HoursOpen 7 days, 7am to 5pm
- CoverageBased in Birkenhead, serving all of Auckland
- PriceAgreed before we start
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