Heat Pump Hot Water Cardiff
Heat pump hot water in Cardiff means replacing a tired electric storage tank with a unit that heats water using warmth drawn from the air. Cardiff Plumbing Co sizes the system to your household, quotes the full changeover at a fixed price, and removes the old tank. Ring (02) 4063 3469 or send the form to book an assessment.
Licensed plumbers and gas fitters · NSW Lic. 359278C
Last updated September 2026
Is a Heat Pump Right for Your House?
A heat pump suits most detached homes here, and four checks decide whether it is the right swap for yours:
The age of your current tank
Outdoor space
Household size
Noise near bedrooms
For repairs, gas units and solar, see our hot water services page. Everything else we do starts with your plumber in Cardiff.
The Changeover Process
- 1
Assess and size
The plumber checks the old tank, the outdoor spot and how the household uses hot water, then names the unit.
- 2
Drain and remove
The old tank is isolated, drained and taken away.
- 3
Fit and connect
The heat pump goes on its base and the water, drain and power connections are made.
- 4
Test and hand over
The first heating cycle is checked, and you get a walk-through of the timer and temperature settings.
What Drives the Price of a Heat Pump?
Most of the price is the unit itself, and the size your household needs decides which one:
- Tank capacity More people means a bigger tank and a dearer unit.
- Position Reusing the old tank's spot keeps pipework short; a new position adds pipe and fittings.
- Removal Getting an old tank out of a tight laundry or subfloor takes extra time.
- Base and drainage Some sites need a new slab or a condensate drain run before the unit goes down.
We provide up-front, honest quotes that will always match the final price, should you decide to go ahead.
Heat Pumps on These Streets
Plenty of neighbours have already switched
Built for the old tank spot
What Customers Say
[The plumber] & his young helper were courteous, well mannered & competent when replacing the solar hot water station pump at my property
When We're Not the Right Call
If your tank only needs a thermostat, element or valve, a repair costs less and a new heat pump is not worth it yet. Wiring or switchboard work needed before the install is done by an electrician.
How a Booking Runs
- 01
Ring or send the form
Call (02) 4063 3469 or use the form to explain the fault. We ask enough to bring the right equipment the first time.
- 02
A fixed price first
A plumber inspects the job and names a fixed figure up front. Nothing gets started until you give the go-ahead.
- 03
Swap the tank
The old unit is drained and removed, the heat pump is set on its base, then connected and run through a full heating cycle.
- 04
Covered for a year
Every job carries our 365-day warranty on all work. If something we did isn't right, ring the same number.
Heat Pump Questions, Answered
How long does a heat pump changeover take in Cardiff?
Where the new unit reuses the existing position, the changeover normally fits inside a working day. Moving it to a new position, or a tank buried in a cottage laundry, adds time, and that is built into the price you approve.
What size heat pump does our household need?
Sizing follows people and habits, not floor space. A couple on staggered showers needs a smaller tank than a family showering back to back before school, and the plumber also checks where the unit can sit before naming a size.
Will a heat pump cope with a Cardiff winter?
Yes. A heat pump just runs longer on a cold morning, and local figures average 0.3 frost days a year. Placing the unit out of the coldest wind helps it recover faster.
Can a heat pump go where my old electric tank was?
Usually. It needs a flat base, airflow around the fan and a condensate drain to run off, which most outside tank spots on the older blocks already have. Where the spot is too tight, the plumber shows you a better position before quoting.
Need a plumber? Call or send the form
Call (02) 4063 3469 or send the form below. Available 24/7, you see a fixed figure ahead of any work, and every job carries our 365-day warranty on all work.
Request a callback
Leave a name and number and a plumber will ring you back.