ELECTRICAL

House Wiring & Electrical Installation: What Homeowners Need to Know

From warning signs of ageing wiring to what a proper installation actually involves — here's what every homeowner in Johannesburg South and Alberton should know.

Whether you're building new, extending, or just wondering if your home's wiring is up to standard, understanding the basics of house wiring helps you ask the right questions and spot problems early.

Signs your wiring may need attention

• Frequent DB board tripping without an obvious single cause.
• Warm or discoloured plug points and switches.
• Flickering lights that aren't caused by a faulty bulb.
• A home older than 30–40 years that has never had wiring inspected or upgraded.
• Burning smells near outlets or the DB board (treat this as urgent).

New wiring vs rewiring an existing home

New construction or an extension involves running wiring into a space with no existing infrastructure — more straightforward in some ways since there's no old wiring to work around. Rewiring an existing home is more involved, often requiring wall chasing to run new cable through existing structure, and is usually done room-by-room to minimise disruption.

What a proper house wiring job includes

1. Assessment of current DB board capacity and whether it needs upgrading for additional load.
2. Circuit planning — separating high-draw appliances (kitchen, geyser) onto dedicated circuits.
3. Proper earthing and earth leakage protection throughout.
4. Testing every circuit before handover, not just visual inspection.

Electrical Compliance Certificates (C.O.C)

An Electrical Compliance Certificate confirms your home's electrical installation meets safety standards — required when selling a property, and a good idea after any significant wiring work regardless. This is often the step people forget to budget for until it becomes urgent during a property sale.

Why this isn't a DIY job

Faulty wiring is a genuine fire and shock hazard, and incorrect work can also invalidate home insurance claims related to electrical faults. See our full electrical services, including fault finding, DB board work, and compliance certificates.