Heat pump supply
Correctly sized units from established brands, matched to your household and how you use hot water. Supply-only is welcome if your installer is already lined up.
- 150 L to 500 L systems
- Residential and commercial
- Supply-only option
Heat pump supply & installation · Cresta
Legacy is built
in degrees.
High-efficiency heat pumps supplied and installed by a local team that stands behind every job. Water that stays hot, electricity bills that drop sharply, and a neat install done right the first time.
Same-week site visits in Cresta, Northcliff, Randburg and surrounds.
Up to 70% less electricity
Heat pump technology moves heat instead of generating it.
Local to Cresta
Based in the area, on site when we say we will be.
Workmanship guaranteed
Neat, compliant installations with a written warranty.
Honest, affordable pricing
Clear written quotes. No surprise extras on the day.
What we do
Hot water systems, handled end to end
Legacy Air supplies, installs and looks after heat pump hot water systems across Cresta and the surrounding suburbs. One local team from the first phone call to the aftercare visit.
Installation & retrofit
Replacing an electric geyser with a heat pump, done neatly in a day in most homes. Pipework insulated, electrics connected properly, old unit taken away.
- Clean, insulated pipework
- Compliant electrical work
- Old unit removed
Servicing & repairs
Annual services, gas top-ups, control faults and breakdowns on all major makes. A well-maintained unit keeps its efficiency for years.
- Service plans available
- Fault finding on all makes
- Fast turnaround
Complete hot water systems
Geyser replacement, pressure valves, timers, insulation and pool or process heating. One team accountable for the whole system.
- Geyser replacement
- Timers and controllers
- Pressure and safety valves
Supplied and fitted
Efficient units, sized properly, installed once.
The maths
Same hot water. A fraction of the electricity.
A heat pump doesn't burn electricity to make heat — it moves heat from the outside air into your geyser. That single difference is why the running cost drops so sharply.
- No element drawing 3–4 kW every time the geyser reheats
- Works in Johannesburg winters — the unit pulls heat from cool outside air
- Keeps the same hot water you're used to, at a third of the running cost
Energy used to heat water
Standard electric geyser100%
Heat pump system~30%
70%
Saving on hot water energy
3–5 yrs
Typical payback period
10+ yrs
Expected service life
Illustrative comparison of water-heating energy use. Your actual saving depends on tank size, household usage, ambient temperature and your electricity tariff.
How we work
The Legacy standard, from quote to aftercare
No guesswork, no surprises and no mess left behind. This is the same sequence on every job, whether it's one geyser or a block of flats.
01
Talk to us
Tell us about the home, your electricity bill and what isn't working. A short call is usually enough to point us in the right direction.
02
Site visit & written quote
We check the geyser, roof or balcony space, power supply and placement, then send a clear, itemised quote with no obligation.
03
Installation day
Most homes are done in a day. The unit is sited, pipework insulated, electrics connected and the old unit taken away.
04
Commissioning & aftercare
We set the temperature with you, explain the controller, hand over the warranty and return if anything isn't right.
Workmanship guaranteed in writing on every installation.
The Cresta radius
Local, so we're there when we say we will be
Legacy Air works out of Cresta and covers the surrounding northern suburbs of Johannesburg. Short distances mean quicker site visits, faster callbacks and a team that knows the area's homes.
CrestaNorthcliffBlackheathBerarioLindenFairlandBordeauxRandburgBlairgowrieFerndaleMelvilleGreensideEmmarentiaRoosevelt ParkRoodepoortSandton
Slightly further out? We still travel for installations — give us a call and we'll confirm whether your area is covered.
Houses, townhouses and small commercial premises.
In the neighbourhood
What clients around Cresta say
A good installation is quiet and forgettable. These are the things people notice afterwards.
“Our geyser was the biggest line on the electricity bill. Legacy Air fitted a heat pump in a morning and the difference showed on the next invoice. Neat work, nothing left behind.”
“They quoted honestly, arrived when they said they would and explained every part of the install. The hot water has been perfect right through winter.”
“We use them for our guest house units. Servicing is reliable and breakdowns get handled quickly, which is exactly what we need.”
Questions
The things people ask before they book
Still unsure about something? Call 064 008 0570 — no pressure, no sales script.
How much does a heat pump installation cost?
It depends on the tank size, the unit and how much pipework and electrical work your home needs. Every quote is measured on site and given to you in writing before any work starts, so the number you agree to is the number you pay. We're happy to talk through a rough range on the phone first.
Does a heat pump work in a Johannesburg winter?
Yes. Modern units are designed to extract heat from outside air well below freezing, and Cresta's winters are mild by comparison. Efficiency drops slightly in very cold weather, but the system still heats water for a fraction of what an element costs.
Can it replace my existing geyser?
In most homes the old geyser cylinder is removed and replaced with a heat pump cylinder, or an existing cylinder is reused with a retrofit heat pump depending on its condition and the space available. We assess this during the site visit and recommend the option that makes the most sense.
What happens during load shedding?
A heat pump draws far less power than an electric element, so it recovers quickly and is easier to run from a small inverter or backup supply. A well-insulated cylinder keeps water hot for hours between heating cycles.
How long does the installation take?
Most residential installations are completed in a single day. Complex retrofits, roof-mounted units or commercial systems can take longer, and we'll tell you upfront so you can plan around it.
Do you service units you didn't install?
Yes. We service and repair all major heat pump makes. An annual service keeps the unit efficient, catches small faults early and protects the warranty.
Is the work guaranteed?
Every installation carries a written workmanship guarantee, separate from the manufacturer's warranty on the unit. If something isn't right, you call us and we come back.
Free quote
Tell us about your hot water. We'll do the rest.
Send your details and we'll call back within one working day to discuss sizing, placement and a written quote. No obligation, no pressure.
Call us064 008 0570Mon–Fri 07:30–17:00WhatsApp064 008 0570Send a photo of your geyserEmailinfo@legacyair.co.zaReplies within a working day
Emergency geyser leaks: phone us directly and we'll do our best to get someone out the same day.