Choosing an electrician for a fault vs a full installation

When your lights flicker or won't turn on, you need someone fast. When you're building an extension or rewiring your home, you need someone deliberate. The electrician you call for each job may not be the same person—and mistaking one for the other wastes money and creates safety risks.

The real question underneath your choice is simpler than it sounds: am I fixing a broken system, or building a new one from scratch? That split changes what you're paying for, how long the work takes, and whether you need a Compliance of Work certificate (COC) at the end.

Fault work: speed and diagnosis matter most

When something stops working—a circuit trips repeatedly, an outlet is dead, a light won't switch on—you need a diagnostic electrician. Their job is to find what's wrong, fix it quickly, and get your power running again. Fault work is reactive. You're not choosing between designs or materials; you're choosing someone who listens to your symptoms, tests the circuit, and knows how to isolate and repair the fault.

Fault electricians are often sole traders or small teams. They may have lower overheads, faster response times, and a reputation built on reliability during emergencies. Ask them how long they've been in the area and whether they're familiar with homes built in your decade—older wiring behaves differently from newer installations. Request their contact number for a WhatsApp photo of the problem area; good fault electricians will take a quick look and give you a ballpark before arriving.

A fault fix might cost far less than an installation, but only if the electrician diagnoses correctly on the first visit. If they guess or replace components without testing, you'll pay twice. Ask what tests they'll do before quoting a fix.

Full installations: planning and compliance take time

When you're adding circuits, installing a new board, rewiring a rental unit, or extending a property, you're not hunting a fault—you're building new infrastructure. This requires planning: load calculations, circuit design, compliance with SANS 10142-1 wiring rules, and an COC issued by someone registered with ECSA (Electrical Contractor Synergy Association) or SAPA (South African Electrical and Mechanical Contractors' Association).

Installation electricians usually run larger operations because the work is complex and accountable. They'll want to visit, measure, understand your needs, and quote in detail. They'll explain why they're running cable in a particular route, how many circuits you need, and what the COC process will involve. The quote may take days; the work may take weeks if it's substantial.

The cost difference between fault and installation work is enormous—not because installers charge greedily, but because compliance, materials, and labour for new work scale up. Trying to save money by hiring a fault electrician for an installation is false economy. They're not equipped to design safe systems or issue valid COCs, and an unregistered COC will cost you far more when you sell the property or face a bank or landlord audit.

When you're unsure: ask what they'll certify

Sometimes the line blurs. You might have a tripping circuit that needs investigation before anyone knows whether it's a one-hour fix or a rewire. In that case, call the electrician and ask: "Can you diagnose this and tell me what's needed?" A good fault electrician will confirm whether it's a repair or a new installation.

Then ask the crucial question: "Will you issue a COC for any work?" If the answer is no, they're a fault fixer. If yes, they're registered for compliance work and can do both. Either is fine—it tells you who to call. But if someone says "I'll do it, COC or not, your choice," that's a red flag. The COC isn't optional theatre; it's proof that the work is safe and legal.

The cost of choosing wrong

Hire a fault electrician for an installation, and you'll get work that may not be compliant, won't have a valid COC, and will expose you to liability if someone is injured or when you try to sell. Hire an installation electrician for a simple fault, and you'll pay for a site visit, design consultation, and compliance overhead when a quick diagnosis would have done.

On Strove, electricians list the type of work they do. Filter for the work you need, read their descriptions, and check their registrations before you call. The right match saves time and money.