Hot water cylinder replacement in Christchurch, made simple
Fully installed pricing from $4,075 incl. GST. Choose your system and we'll send your quote and book an installer site visit. Backed by Butterfield Bathrooms.
TWO SYSTEMS. ONE PROCESS
Two systems. One straightforward process.
Most Christchurch homes are replacing or upgrading from an electric cylinder. We make it simple. Choose the system that suits your home, and we'll quote, visit to confirm the setup and handle the rest.
Mains pressure replacement
From $4,075 incl. GST · fully installed
Add $750 if we're moving your system from inside to outside. A travel charge applies outside Christchurch metro.
A straightforward replacement for homes where a standard cylinder is the right fit. Lower upfront cost and a simpler swap-out path.
Best for:
Homeowners who want a straightforward, lower-cost replacement done quickly. A reliable choice for most Christchurch homes.
Heat pump upgrade
From $7,990 incl. GST · fully installed
A travel charge applies outside Christchurch metro.
A more efficient long-term option. Up to 73.9% less energy to heat your water (Rheem’s figure for the AmbiPower 280e). Qualifies for all major bank green loans.
Best for:
Homeowners who want lower power bills and the long-term value of a more efficient system. Pays itself back through reduced running costs.
Is a heat pump worth it?
Up to 73.9% less energy to heat your water (Rheem’s figure for the AmbiPower 280e). For most Christchurch homes, that's around $1,000 in power savings every year.
Power Savings
Standard electric cylinder
Approx. $ 1,350 per year
Heat pump
Approx. $ 350 per year
You keep approximately
Approx. $ 1,000 every year
Based on a 3 to 5 person household and the current North Canterbury electricity rate of $0.339 per kWh (Powerswitch, July 2025).
Green loans cover the upgrade
Westpac 0% for 5 years for Westpac home loan customers (conditions apply). Other major banks offer green loans too. Check with your bank. On an $7,990 install over 5 years at 0%, your loan repayment is around $133 per month and your power savings are around $85 per month. After 5 years the loan is paid and the savings continue for the life of the system.
Backed by a 12-month service inspection
One service inspection at 12 months, with a corrosion check and free anode replacement if needed, and a reminder at 5 years when the next service is due. Plus the manufacturer's warranty.
Clear starting prices from the start
You should know what your replacement will cost before you commit to anything. Here's where standard installs start.
For standard installs, this is the price we aim to honour. If we identify anything outside a standard install, we’ll let you know before work begins.
HEAT PUMP UPGRADE
$7,990
incl. GST
Rheem or Rinnai heat pump system, fully installed. Includes a site assessment before install day to plan the spot and pipe route, an initial water test, removal and disposal of the old cylinder, seismic restraint, a new electrical circuit with code of compliance, commissioning to code, and one service inspection at 12 months, with a corrosion check and free anode replacement if needed, and a reminder at 5 years when the next service is due.
A travel charge applies outside Christchurch metro.
MAINS PRESSURE REPLACEMENT
$4,075
incl. GST
Dux mains pressure cylinder, fully installed. Includes an installer assessment before install day to confirm the setup, removal and disposal of the old cylinder, supply and install with seismic restraint and a tempering valve to current code, connection to existing water, power and drainage, commissioning, and a 10-year warranty on the tank.
Add $750 if we're moving your system from inside to outside. A travel charge applies outside Christchurch metro.
No surprises on the day
For standard installs, the price shown is the price we aim to honour. The vast majority of Christchurch homes fit a standard install.
What’s included as standard
Removal and disposal of existing cylinder (where possible)
New system supplied and installed
Standard plumbing reconnections
Compliant electrical reconnection and Code of Compliance certificate
Manufacturer’s warranty
Tidy-up before we leave
What could change the price
Long pipe runs or restricted access
Switchboard upgrade or non-standard electrical work
Asbestos or remedial work in the cylinder area
Pre-existing plumbing issues that need addressing
If anything outside a standard install is identified, we'll explain it clearly and confirm any change with you before work begins.
Moving a mains pressure cylinder from inside to outside adds $750. Heat pumps are installed outside as standard, with no move charge. A travel charge applies outside Christchurch metro.
How it works
From here to a confirmed install in four steps.
01
Choose your system
Use the assessment or check our pricing directly. Fully installed pricing for every option.
02
Quote and site visit
We'll send your quote and book an installer site visit to confirm everything.
03
Deposit after the visit
A 50% deposit is invoiced after the site visit. Nothing to pay before then.
04
Installation
We complete your replacement or upgrade. The balance is invoiced on completion.
Backed by Butterfield Bathrooms
Butterfield Bathrooms has been working in Christchurch homes for years, handling everything from full bathroom renovations to hot water system upgrades. Butterfield Hot Water Systems is a focused service built on that experience.
When you book through us, you get the same team, the same systems, and the same standards. Just for hot water.
Local team
Christchurch-based, working in Christchurch homes every week.
Established business
The Butterfield team has the systems, the trades, and the experience to do this properly.
Real experience
A vast number of cylinder replacements and heat pump installs across Canterbury.
Frequently asked questions
A few of the common questions homeowners ask before replacing or upgrading their hot water system.
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That depends on both household size and how hot water is used across the day. The assessment helps point you toward the likely size for your home.
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For many homes, yes. Lower running costs, a strong warranty, and green loan eligibility make the maths work for most households over 5 to 10 years.
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For standard installs, that is the price we will aim to honour. If we identify anything outside a standard install, we'll let you know before work begins, not after.
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Yes. An installer visits before install day to confirm everything. We book the visit when we send your quote, and the 50% deposit is invoiced after it.
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Yes. Butterfield Hot Water Systems is currently focused on greater Christchurch and surrounding areas. A travel charge applies outside Christchurch metro.
Ready to get started?
Check our pricing to see what your replacement or upgrade will cost. Or use the assessment if you're not sure which system suits your home.