Electrical SERVICES

Commercial Switchboard Upgrades Sydney

Sydney commercial switchboard upgrades for overloaded or non compliant boards. RCD protection, thermal testing, full certification. Minimal downtime, licensed crew, upfront quotes.
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Your switchboard is the heart of your business. Keep it beating

An old or overloaded switchboard can trip your power, fry your equipment or worse. If your board is packed with circuits, running hot or still relying on outdated protection, it’s only a matter of time before it lets you down. Commercial switchboard upgrades in Sydney generally start around $2,000 and climb depending on the size of your setup.

CGF Security & Electrical upgrade commercial switchboards across greater Sydney. We’ll assess what you’ve got, recommend what you actually need and handle the whole job from disconnect to final certification. Clean boards, labelled circuits and zero disruption to your day.

The Australian Wiring Rules (AS/NZS 3000) now require 30mA RCD protection on all final sub circuits supplying lighting and socket outlets up to 32A in commercial electrical installations. If your board is older, there’s a decent chance it doesn’t meet the current rules.

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Signs your switchboard needs attention

  • Frequent tripping or power outages – Your board is struggling to handle the load. Nuisance tripping often points to overloaded circuits or tired protective devices.
  • Flickering lights or inconsistent power – Usually means uneven load distribution or loose connections somewhere in the board.
  • Burning smells, scorch marks or buzzing – These are urgent. Kill the power and call someone immediately.
  • Overcrowded wiring or no spare capacity – If your board is jammed full with no room for new circuits, it's time.
  • Ceramic fuses or no RCD protection – If you're still running old fuse wire, your board is decades behind and doesn't meet current AS/NZS 3000 requirements.
  • You're adding equipment or expanding – Any significant change to your power needs should trigger a switchboard review.

What goes into a commercial switchboard upgrade

Every upgrade is different but here’s how we approach it.
  • Full assessment and load calculation – We map your existing circuits, measure your actual demand and figure out exactly what size board and protection you need.
  • Removal of the old board – We safely disconnect and strip out the outdated switchboard, including any ceramic fuses or degraded components.
  • New switchboard installation – Modern boards with correctly rated circuit breakers, RCD safety switches protection on all required circuits and proper labelling to AS/NZS 61439.
  • Load balancing and supply upgrades – We spread your power draw properly across phases so equipment runs efficiently and nothing gets cooked.
  • Surge protection – Installed at the board to protect your gear from voltage spikes.
  • Infrared thermal testing – We scan every connection for hot spots that indicate loose terminations or overloaded circuits.
  • RCD testing and certification – Every safety switch is tested for correct tripping time and current. You get a full handover report and Certificate of Compliance (CCEW), which licensed electricians in NSW are required to issue after switchboard upgrades.

Types of businesses we upgrade

We’ve worked on switchboards for all sorts of commercial setups around Sydney:

  • Cafés, restaurants and commercial kitchens
  • Retail stores and shopping centre tenancies
  • Offices and co working spaces
  • Warehouses and industrial units
  • Medical and dental practices
  • Gyms and fitness studios
  • Strata and apartment buildings
If it’s a small tenancy board or a full building main switchboard, the process is the same: assess, plan, upgrade, certify.

Why businesses use CGF Electrical

  • Licensed and fully compliant – All work meets AS/NZS 3000 and NSW regulations. You get a Certificate of Compliance on completion.
  • Minimal downtime – We plan the upgrade around your quiet periods. Evenings and weekends are fine.
  • Clean, labelled boards – Every circuit marked clearly so there's no guesswork later.
  • Thermal testing as standard – We use infrared scanning to find hot spots before they become failures.
  • Future proofed capacity – Spare slots and headroom for whatever you add next.

Frequently Asked Questions

It depends on the size of your board, the number of circuits and if you need a supply upgrade. Commercial switchboard upgrades in Sutherland Shire, Sydney generally start around 2,000 and can run to 5,000 or more for larger installations. We’ll give you a clear, upfront quote before anything starts.
Only during the actual changeover, which for most standard upgrades takes a few hours. We plan this around your schedule and can work after hours so you’re not disrupted.
Circuit breakers protect your equipment and wiring from overloads. RCDs (safety switches) protect people from electric shock. Under AS/NZS 3000, you need both on your commercial switchboard.
Yes. Every commercial switchboard upgrade comes with a Certificate of Compliance (CCEW), full circuit labelling and a handover report with thermal scan results.
Absolutely. We handle single phase to three phase conversions, three phase board upgrades and supply upgrades for businesses running heavy equipment.