Split unit aircon installation in Johannesburg is the default job: one indoor head on a wall inside, one condenser outside, joined by insulated copper, a drain and a cable. It is what most homes, small offices and shops get, and it is the cheapest air conditioning there is to install.
"Split" refers to the layout, not the technology. Most split units sold now are inverters, but fixed-speed splits still exist at the budget end.
Send the room size and where the outdoor unit could sit, and get split unit installation quotes.
Get Split Unit QuotesWhy Split Units Dominate
- The noisy parts — compressor and condenser fan — are outside.
- Installation needs one core hole rather than ceiling work or ducting.
- It retrofits into an existing building with minimal disruption.
- Each unit is independent, so one failure does not take out the whole property.
- Parts and technicians are available everywhere in the Johannesburg metro.
The trade-off is visible hardware. An indoor head on the wall and a condenser outside, one pair per room. Once you get past about four rooms, ducted or multi split systems start to look tidier.
Where the Units Go
| Element | What it needs |
|---|---|
| Indoor head | High on a wall, clear of obstructions, not blowing directly at a bed or desk |
| Pipe route | As short as practical; every extra metre adds copper and labour |
| Drain | Continuous fall to a discharge point, or a condensate pump |
| Outdoor condenser | Free airflow, shade if possible, away from bedroom windows and boundaries |
| Electrical | Dedicated circuit and an accessible isolator near the unit |
A condenser in full afternoon sun against a west wall works harder for the same cooling. Shade helps, but never at the cost of airflow — boxing one into a tight enclosure for appearance is worse than leaving it in the sun.
Back-to-Back Installation
The cheapest arrangement puts the condenser directly behind the indoor head, through one hole, with under a metre of pipe. Most quotes assume roughly this, with an allowance of about 3 m of pipework included. Anything longer is charged per metre, and it is the most frequent cause of a quote coming in above expectations.
Split Unit Installation Prices in Johannesburg
| Job | Indicative range | Notes |
|---|---|---|
| 9000 BTU split supplied & installed | R9,500 – R15,000 | Bedroom or study |
| 12000 BTU split supplied & installed | R11,000 – R17,500 | Main bedroom or small lounge |
| 18000 BTU split supplied & installed | R15,000 – R24,000 | Living room or open-plan |
| 24000 BTU split supplied & installed | R19,000 – R32,000 | Large open-plan or small commercial |
| Installation only, back-to-back | R3,500 – R7,500 | You supply the unit |
| Extra copper pipe | R350 – R650 per metre | Beyond the included allowance |
| Core drilling | R450 – R950 brick, more for concrete | Per hole |
| Condenser wall brackets | R650 – R1,500 | Heavier units need heavier brackets |
| Second unit on the same visit | Lower per-unit rate | Worth quoting the whole house at once |
Indicative Johannesburg ranges, not a quotation. If you are fitting more than one unit, get them quoted together. The saving on a second unit installed during the same visit is usually significant.
Compare split unit installation quotes with the room size and condenser position specified.
Compare Installation PricesFrequently Asked Questions
What is a split unit aircon?
An air conditioner in two parts: an indoor head mounted on the wall, and an outdoor condenser containing the compressor, connected by insulated copper pipes, a drain line and a cable. The name describes the layout, not the technology.
How much does a split unit installation cost in Johannesburg?
A 12000 BTU inverter split supplied and installed back-to-back commonly runs R11,000 to R17,500. Installation only, where you supply the unit, is typically R3,500 to R7,500.
How far apart can the indoor and outdoor units be?
Most domestic splits allow 15 to 25 m of pipe run, depending on the model, with limits on the vertical difference too. Long runs cost more in copper and labour and slightly reduce performance, so shorter is better where there is a choice.
Is a split unit better than a portable aircon?
For anything beyond occasional use, considerably. A portable rejects its heat through a hose out of a window, which leaves the room drawing warm air back in, and it puts the compressor noise in the room with you.
Can one outdoor unit run two rooms?
Only on a multi split system, which is designed for it. A standard split condenser is matched to one indoor head and cannot be shared.
Split unit installations are the most common job quoted through Aircon Installers Johannesburg.
Related Aircon Services
Aircon Installers Johannesburg is a free quote-matching service. We do not install, repair or service air conditioners ourselves. Every quote comes from a LEADERR APPROVED local contractor, and your contract is with the business you appoint. Assess each quote on its own merits before appointing anyone.
Describe the job once and compare quotes from LEADERR APPROVED contractors in your area.
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Send the room size and where the outdoor unit can go, and get split unit installation quotes.
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