Should You Upgrade Your Switchboard? 7 Warning Signs to Look For
Your switchboard is the control centre of your home’s electrical system. It distributes power to each circuit, protects against electrical faults and helps keep your household safe. But because it is usually tucked away in a garage, hallway or cupboard, it can be easy to overlook.
At Cableworks Electrical, we regularly assess older switchboards across Kāpiti, Wellington, Porirua and the Hutt Valley—often when homeowners are planning a renovation, installing solar, or adding an EV charger. Here are seven signs you may need a switchboard upgrade.
- Your breakers trip regularly
Circuit breakers are designed to trip when there is an overload or fault. An occasional trip can happen, but if it is occurring regularly, it needs investigation. The issue may be an overloaded circuit, a faulty appliance, damaged wiring or a switchboard that is no longer adequate for your home’s electrical load.
- Your home still has ceramic fuses
Older homes in Wellington and Kāpiti often still have ceramic fuse boards. While these may still function, they do not offer the same convenience, circuit protection or safety features as a modern switchboard with circuit breakers and RCD protection.
- There are signs of overheating
A burning smell, buzzing or crackling sounds, scorch marks, melted plastic, discolouration or a warm switchboard are serious warning signs. If you notice any of these, turn off the main switch if it is safe to do so and contact a registered electrician promptly.
- Your lights flicker or appliances behave unpredictably
Flickering lights, appliances cutting in and out, or unexplained power loss can indicate a loose connection, circuit fault or switchboard issue. These symptoms should not be ignored—especially in older homes where electrical systems may not have kept pace with modern energy use.
- Your switchboard lacks RCD protection
Residual Current Devices, or RCDs, are designed to quickly disconnect power if they detect an electrical leakage fault. This helps reduce the risk of electric shock. If your switchboard does not have appropriate RCD or RCBO protection, upgrading it can be an important safety improvement.
- You are installing solar, a battery or an EV charger
Modern homes place more demand on electrical systems than ever before. Solar panels, home batteries, heat pumps, induction cooktops and EV chargers can all require additional capacity and upgraded protection. Before installing these technologies, a qualified electrician in Wellington or Kāpiti should assess whether your existing switchboard is suitable.
- There is no room for future circuits
An overcrowded switchboard, unused openings covered with tape or a board with no spare ways are all signs that it is time to plan ahead. A properly designed upgrade gives you safe room for future additions and can prevent having to redo work later.
Considering a Basis Smart Panel?
If you are upgrading your switchboard, it may be worth considering a Basis Smart Panel. Unlike a conventional switchboard, Basis gives homeowners greater visibility and control over individual electrical circuits through its app. It is an ideal option for homes moving towards solar, batteries, EV charging and greater energy independence.
As Wellington Region Basis Ambassadors, Cableworks Electrical can help you decide whether a standard switchboard upgrade or a Basis Smart Panel is the better fit for your home, budget and future plans.
If you have noticed any of these warning signs, contact Cableworks Electrical—your local electrician in Kāpiti and Wellington—for a professional switchboard assessment.