Residential services
Switchboard Upgrades
An old switchboard limits what your home can safely run. We replace ageing fuse boards with modern switchboards and RCD protection, sized for heat pumps, EV chargers and whatever you add next.
What's included
How we can help.
- 01Fuse board replacement
- 02RCD and surge protection
- 03Extra circuits for heat pumps and EV chargers
- 04Sub-boards for extensions and garages
- 05Safety inspection of existing wiring
“Fowler Homes Auckland North has been using Martin and his team from Mainstream Electrical for over a decade for all of the electrical work on our new home builds. The entire Mainstream Electrical team are very professional, and both Fowler Homes and our clients have always enjoyed top quality workmanship.”
Matt Hepper
Fowler Homes Rodney / North Shore
FAQ
Switchboard Upgrades: common questions
01How do I know if my switchboard needs upgrading?
Common signs are ceramic fuses instead of circuit breakers, no RCD protection, breakers that trip often, or no spare space for new circuits. We can inspect it and tell you straight.
02Do I need an upgrade before installing an EV charger or heat pump?
Often, yes. Both need a dedicated circuit, and older boards may not have the capacity or protection required. We check this as part of the quote.
03Will I get a Certificate of Compliance?
Yes. All work is carried out by registered electricians and certified to New Zealand electrical standards. Where the regulations require it, you receive a Certificate of Compliance (CoC) when the job is complete.
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