A Real Job: BMW Wall Box, West Pennant Hills
A straightforward EV charger installation costs $1,000–$1,500 + GST in the Hills District. But that figure only holds if your switchboard can already handle the extra load — and in homes built before the early 2000s, it often can’t. Saunders Electrical Group recently installed a 32-amp 3-phase BMW wall box charger for a homeowner in West Pennant Hills, and the job is a clear example of why two EV charger installation quotes for two different homes can be $1,500 apart, and both be correct.
The wall box itself was a clean, straightforward install: $1,250 + GST for the 32-amp 3-phase circuit and charger fit-off. On its own, that’s a fair benchmark for what a compliant EV charger install costs when the electrical infrastructure behind the switchboard door is already sound.
This home’s switchboard wasn’t. It was original to the property, undersized for a new high-draw circuit, and the panel itself contained asbestos sheeting — common in switchboards installed before the mid-1980s. Before the charger could go in safely, the switchboard needed a full upgrade: new circuits for lighting, power and appliances brought up to current standard, plus safe asbestos removal from the panel. That upgrade cost $2,500 + GST, on top of the charger install.
Total job cost: $3,750 + GST. Quoted as “EV charger installation” alone, the figure would have looked like $1,250. The other $2,500 was a pre-existing safety issue the EV charger request happened to uncover.
Why This Keeps Happening
A 32-amp 3-phase EV charger draws significantly more continuous load than anything else in a typical home — more than an oven, more than ducted air conditioning. Older switchboards were never designed with this kind of draw in mind, because it didn’t exist when they were installed. Adding a high-draw circuit to an undersized or outdated board isn’t just a compliance formality — it’s the difference between a board that trips constantly (or worse, overheats) and one that runs the charger safely for the next 15–20 years.
The other factor buyers don’t expect: asbestos. Switchboard panels and backing boards installed before 1987 commonly contain asbestos cement sheeting. It’s not dangerous while undisturbed, but any switchboard upgrade that involves removing or drilling into that panel has to account for safe removal and disposal — which is a licensed, documented process, not an extra line item you can skip.
What This Means If You’re Getting a Quote
If your home was built before the early 2000s, ask your electrician to check your switchboard’s age and capacity before you lock in an EV charger price. A single number for “EV charger installation” is only accurate if nobody has looked behind the switchboard door yet. A proper quote separates the charger install from any switchboard work required to support it, so you know exactly what you’re paying for and why.
Switchboard capacity isn’t the only variable that moves an EV charger quote, either — for 22kW chargers specifically, the distance between your switchboard and the charger, and whether you already have three-phase power, can be just as significant.
Frequently Asked Questions
Is Saunders Electrical Group licensed for EV charger installation in the Hills District?
Yes. Saunders Electrical Group holds NSW Electrical Contractor Licence 344815C and is a 2025 Local Business Awards Finalist, servicing Castle Hill, Kenthurst, Baulkham Hills, Dural, Rouse Hill, West Pennant Hills and surrounding Hills and Hawkesbury suburbs.
How much does EV charger installation cost in Sydney?
A standalone EV charger installation on a switchboard that already has capacity typically costs $1,000–$1,500 + GST, depending on cable run and charger model. If the switchboard needs upgrading to support the new circuit, budget an additional $2,000–$3,000 + GST, which can include bringing other circuits up to standard.
Why did my switchboard need an upgrade just to install an EV charger?
A 32-amp 3-phase EV charger draws more continuous load than most household appliances. Switchboards installed before the early 2000s were rarely designed to carry this load safely, so adding a high-draw circuit often requires upgrading the board itself, not just adding a new circuit to it.
Does an old switchboard contain asbestos?
Switchboard panels and backing boards installed before 1987 commonly contain asbestos cement sheeting. It’s not a hazard while undisturbed, but any upgrade that involves removing or drilling into that panel requires safe, licensed removal and disposal as part of the job.
Does Saunders Electrical Group service West Pennant Hills?
Yes. West Pennant Hills is within Saunders Electrical Group’s core Hills District service area, alongside Castle Hill, Cherrybrook, Baulkham Hills, Dural and Rouse Hill.