★★★★★
Kerry installed a new heat pump hot water system at our house, replacing our 1956 cylinder. The difference is amazing. He took the time to answer all my questions and came back the next day to double-check his work.
A1 Plumbing
Christchurch
0800 A1 PLUMB
or 0274 293 770
Free Quote
★★★★★
5.0
186 five-star Google reviews · Christchurch
Hot Water Cylinder Replacement in Christchurch.
No hot water? Leaking cylinder? Kerry and the team at A1 Plumbing have been replacing cylinders across Christchurch for 31+ years. Free fixed-price quote, no obligation.
Licensed Craftsman PlumbersFully NZ-code compliant
31+ years in ChristchurchLocally owned and operated
Fixed-price, free quotesNo hidden fees, no surprises
Single-visit swapsMost installs done in a day
Verified Google Reviews
What Christchurch homeowners say about A1 Plumbing
★★★★★
5.0
186 five-star reviews
★★★★★
Had 3 plumbers try to fix our hot water pressure in the last 4 years and A1 Plumbing were the only ones to correctly diagnose and fix the problem. Highly recommend Kerry — very professional service.
SH
★★★★★
At Interfurb Interiors, we use A1 Plumbing for all of our renovation & construction contracts. Residential or commercial, nothing is ever a problem for Kerry and his team. Fast, reliable & trustworthy.
II
★★★★★
Quick & reliable. Called him Monday, came out next day. Very professional job at a reasonable rate. Now our permanent plumber for all our Christchurch properties.
PM
On the job in Christchurch
Real installs, real Christchurch homes
A few recent jobs from across Christchurch — vans, copper, cylinders, heat pumps. Tidy installs, every time.
Signs your cylinder needs work
Four signs it’s time to replace your cylinder
Christchurch cylinders take a beating — chlorinated water and hard limescale wear them out faster than most. Spot any of these and it’s worth a free 5-minute call.
Visible leaks
Even a slow drip from the cylinder base or pipework usually means corrosion — and the damage compounds fast.
Inconsistent water
Lukewarm showers usually mean a failing element, sediment build-up, or a faulty thermostat. Older units are usually due for replacement.
Banging noises
Sediment hardening on the heating element. The cylinder is working harder, and your power bill shows it.
Dropping pressure
Often a sign your low-pressure cylinder is past it — or a great moment to upgrade to mains pressure.
Solutions tailored to your home
Pick the cylinder that’s right for you
We’ll inspect your current setup, talk you through the trade-offs, and give you a fixed-price quote. No upselling, no jargon.
Like-for-Like Replacement
Same size, same fittings, same pressure. Fastest option — usually a single-visit swap.
Get a quote
Most popular
Mains Pressure Upgrade
Stronger flow at every tap and shower. The most popular upgrade in Christchurch — includes seismic restraint.
Quote upgradeHeat Pump Hot Water
Up to 4× more efficient than standard electric. Pays back fast on power bills. Quiet, reliable, future-proof.
Get a quote
Why we’re different
A1 Plumbing vs other Christchurch plumbers
Most plumbing call-outs feel like a gamble. Here’s how we run things differently.
What you’ll get
A1 Plumbing
The other guys
Fixed-price quote upfront
Confirmed before work
You’d have to ask
Christchurch experience
31+ years local
You’d have to ask
Licensed Craftsman Plumber
Authorisation Card
You’d have to ask
Christchurch-specific knowledge
Christchurch water-aware
You’d have to ask
Quick scheduling
Days, not weeks
You’d have to ask
How it works
From “no hot water” to “sorted” in 4 steps
1
Call or fill the form
Tell us what’s happening. We’ll narrow down the issue in a few quick questions.
2
Free fixed-price quote
Over the phone or after a free on-site inspection — usually same day.
3
Install at the agreed price
Most swaps take a single visit. We tidy up before we leave.
4
Compliance sign-off
Documentation, a clean install, and a plumber on speed-dial for next time.
Free quote
Tell us what’s going on.
We’ll get back to you within working hours — usually within an hour.
- No obligation
- Honest advice on whether to repair or replace
- Fixed price before any work starts
Or call directly
0800 A1 PLUMB
Quotes go out within working hours. For urgent jobs (no hot water / leak), call 0800 A1 PLUMB — Kerry usually picks up.
Hot water cylinder FAQ
Questions Christchurch homeowners ask us most
What are the signs I need to replace my cylinder?
Leaks, inconsistent water temperature, banging or rumbling noises, dropping water pressure, or a unit older than about 12 years. Any of these are worth a free 5-minute call. We’ll give you an honest read on whether it’s a repair or a replacement.
Are there any hidden costs in a replacement?
No. Every quote is fixed-price and includes the cylinder, fittings, seismic restraints, labour, and disposal of the old unit. If something genuinely unexpected comes up mid-job (e.g. corroded pipework behind a wall) we stop and quote it before doing the extra work.
How long does a replacement take?
Most like-for-like swaps take half a day. Mains pressure upgrades and heat pump installs typically take a single full day. We aim to leave you with hot water by the same evening.
What are the benefits of a mains pressure cylinder?
Stronger, more consistent flow at every shower and tap in the house — especially noticeable in two-storey homes and homes with multiple bathrooms. It’s the most popular cylinder upgrade we install in Christchurch.
What energy-efficient options do you offer?
Heat pump hot water systems (up to 4× more efficient than standard electric) and mains pressure cylinders. We’ll tell you honestly which is the right fit for your household size, hot water habits, and budget — not whatever has the biggest margin.
Still have questions? Call Kerry on 0800 A1 PLUMB.
Service areas
Hot water cylinders across Christchurch
From the central city to the outer suburbs — we cover the whole of Christchurch.
Central
Christchurch Central
Riccarton
Merivale
Fendalton
East & South
New Brighton
Sumner
Cashmere
North & West
Papanui
Bishopdale
Hornby
…and all greater Christchurch. Just call to confirm.
0800 A1 PLUMB
or text Kerry on 0274 293 770
Cold shower this morning? Let’s sort it today.
Call during business hours, or text any time — we’ll get back to you fast.