Aircon installation, repair and service in Johannesburg

A split air conditioning unit, a pipe run, a drain and a circuit make up aircon installation. A new electrical circuit needs a Certificate of Compliance from a registered electrician.

If your aircon has stopped, aircon repair starts with a diagnosis. You can look at the remote settings and note any error code. If the aircon trips a breaker, leave it off and request a fault check.

Aircon service and maintenance lets a technician look over a unit in Melville, Parkhurst or Bertrams that sat idle through a dry winter. For the money side, see aircon installation cost, where each published price carries its source and date.

Johannesburg is too big for one set of advice. These suburbs come from the City of Johannesburg's own regional suburb lists:

• Melville, Parkhurst, Greenside, Parktown North and Rosebank (the City's Region B list, which it titles "Northcliff, Randburg").
• Florida, Honeydew, Constantia Kloof and Roodepoort (Region C).
• Bertrams, Bellevue, Mulbarton, Glenvista, Turffontein and Ormonde (Region F).
• Sandton, Randburg and Midrand have their own pages: aircon in Sandton, aircon in Randburg and aircon in Midrand.
• Greater Soweto, Eldorado Park, Ennerdale, Lenasia and Orange Farm have no page of their own, and we haven't checked a City suburb list for them. Put your suburb in the form.

In October 2025 the Johannesburg Roads Agency (JRA) published flood hotspots for each region. In Florida it lists Albertina Sisulu Road between Jersey Road and Crous Road, The Highway between Lelie Street and Westlake, and Goldman Street. In Turffontein it lists the Turf Club between Leonard and Main, and the Klip River between the Turf Club and Booysens. In Westdene it lists Tenby Street.

The Florida, Turffontein and Westdene entries are roads, not yards. They do raise one question for an outdoor unit that sits on the ground: where does water run on your plot? The same October 2025 list names streets in Cosmo City and Northriding (Hyperion Drive, and the Blandford Road bridge between Bellairs Drive and Ascot) in Region C, and in the inner city, streets in Joubert Park, Hillbrow, Braamfontein and Marshalltown in Region F. A unit in a low spot is a different job from one on a wall bracket, so mention it when we call you back. If floodwater has reached an aircon, do not switch it on. Have the electrical supply and the aircon assessed before it is used again. The JRA says it clears kerb inlets and stormwater drains and desilts low-lying bridges.

Weather Atlas, a modelled climate site (page updated January 2024), shows Johannesburg's January average high at 25.6 °C, with about 125 mm of rain over roughly 16 rainy days. July is the opposite, at about 4 mm and an average high of 16.7 °C. Pretoria's January average high on the same site is 28.7 °C.

The same site shows the rain returning with about 72 mm in October and about 117 mm in November. TechCentral described Highveld winters as dry and dusty in June 2022. Dust can settle on an idle unit, so a service before the first hot spell gives a technician the chance to look at it.

SAnews, reporting in January 2026, notes that afternoon and evening storms are common on the Highveld in the summer rainfall season.

An aircon regas in Johannesburg means topping up the refrigerant in a split unit in a house or office, not in a car. A sealed split should keep its charge. A low charge can result from a leak or an incorrect previous charge, so the cause needs diagnosis before refrigerant is added. Topping up without finding the cause only delays the problem.

Work on the refrigerant circuit needs an SAQCC Gas registered practitioner.

More on the regas and leak repair page.