Johannesburg-based · Serving clients across South Africa
Electrical fault finding on an aircon unit

Electrical Installations, Repairs & COCs

Safe, compliant electrical work for homes and businesses, including dedicated aircon and heat pump circuits.

Electrical

Electrical services in Johannesburg & across South Africa

Every aircon, coldroom and heat pump needs a correctly sized, safe electrical supply. Our team handles the electrical side of your installation as well as general electrical work, so you deal with one contractor from start to finish.

Aircon repair – electrical fault finding on an outdoor unit

Why choose Mafusire HVAC for electrical?

  • 15 years of experience in the trade
  • Qualified, experienced technicians
  • Neat, safe and compliant installations
  • All major brands supplied and serviced
  • Johannesburg-based with nationwide project capability
  • Clear, itemised quotes with no hidden costs

Electrical work done safely and to standard

Electrical work must be done properly to protect people and property. Our team has 15 years of experience in electrical and HVAC installations, and every job is done in line with SANS 10142, the South African wiring code. We use quality materials, label distribution boards clearly and test everything before we leave.

Our electrical services

  • New electrical installations for homes, offices and shops
  • Dedicated circuits and isolators for aircons, heat pumps, coldrooms and geysers
  • Distribution board (DB) installations, upgrades and repairs
  • Earth leakage and surge protection
  • Plug points, light switches and isolators
  • Indoor, outdoor and security LED lighting
  • Fault finding and emergency repairs
  • Electrical Certificates of Compliance (COCs)

Why HVAC equipment needs a dedicated circuit

Aircons, heat pumps and coldrooms draw a lot of power when they start. If they share a circuit with other appliances, breakers can trip, wiring can overheat and equipment can be damaged. A correctly sized dedicated circuit with its own isolator keeps the equipment and your building safe, and it is often a manufacturer requirement for the warranty.

Electrical fault finding

Tripping breakers, flickering lights, warm plugs, burning smells or parts of the house without power are signs of an electrical fault. Ignoring them is dangerous. Our electricians trace the fault systematically, repair it and confirm the circuit is safe before handing over.

Electrical Certificates of Compliance

An electrical COC confirms that an installation meets SANS 10142 safety standards. You need one when selling a property, after major electrical work and often for insurance claims. We inspect the installation, fix any faults found and issue the certificate once it complies.

One contractor for HVAC and electrical

Because we handle both the HVAC and electrical side, you do not have to coordinate two contractors. The same team installs your aircon or heat pump and the circuit that powers it, so the job is done faster and responsibility stays in one place.

Electrical services in Johannesburg and beyond

We offer electrical services across Johannesburg and greater Gauteng, and handle electrical work linked to HVAC projects throughout South Africa and in Zimbabwe.

Send us photos of your site on WhatsApp or request a quote online for a fast estimate.

What we offer

Electrical Solutions

Electrical Installations

New circuits, plugs, lights and isolators.

HVAC Circuits

Dedicated supplies for aircons and heat pumps.

Fault Finding

Tripping breakers and faulty wiring traced and fixed.

DB Board Upgrades

Distribution boards and earth leakage protection.

Electrical COCs

Certificates of Compliance for sales and insurance.

Lighting

Indoor and outdoor LED lighting installation.

Our work

Electrical Projects

Aircon repair – electrical fault finding on an outdoor unitSplit aircon installed in a home loungeAircon installed in an inverter battery container for 24/7 coolingInstaller standing next to a newly installed Jet-Air indoor unit
FAQ

Electrical Questions

Do I need a separate circuit for my aircon?

Larger aircons and heat pumps should have a dedicated circuit and isolator to prevent overloading and tripping.

What is an electrical COC?

A Certificate of Compliance confirms your electrical installation meets SANS 10142 safety standards. It is required when you sell a property.

Why does my breaker keep tripping?

Common causes are overloaded circuits, faulty appliances, earth leakage or damaged wiring. We trace and fix the fault safely.

Do you do general electrical work?

Yes, we handle general residential and commercial electrical work, not only HVAC circuits.

How long is an electrical COC valid?

A COC does not expire as long as no changes are made to the installation. However, buyers and insurers often ask for a recent certificate, usually not older than two years.

Can you upgrade my DB board?

Yes. We replace old distribution boards, add earth leakage and surge protection, and label every circuit clearly.

Do you do emergency electrical repairs?

Contact us by phone or WhatsApp. We prioritise faults that are dangerous or leave a home or business without power.

Can you install the electrical supply for my heat pump or aircon?

Yes. We install dedicated circuits and isolators for aircons, heat pumps and coldrooms, usually as part of the same job.

Need an aircon, coldroom or HVAC specialist?

Free, no-obligation quotes for homes and businesses in Johannesburg and across South Africa.

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