How to Prepare for Your EV Charger Installation Call

Before You Pick Up the Phone, Do These Five Things

Preparing for your EV charger installation call takes about 20 minutes and saves a lot of back-and-forth. Gather a few details about your home's electrical setup, your parking situation, and your daily driving habits, and the electrician can give you an accurate quote on the first conversation rather than a wide ballpark that shifts later.

Here is what to pull together before you call.

Know Your Switchboard (It Drives Most of the Cost)

Your switchboard is the single biggest variable in any EV charger quote. An electrician needs to know three things about it before they can price a job properly.

Is it single-phase or three-phase? Most older Brisbane homes, including many Queenslanders and postwar brick homes across Coorparoo, Camp Hill, and Annerley, are wired on single-phase 230V supply. A single-phase charger typically delivers around 7kW, which adds roughly 35-40km of range per hour of charging. That is fine for most households. Three-phase supply allows a charger to run at up to 22kW, which is useful if you drive high kilometres or have two EVs. If you are not sure which you have, count the main circuit breakers in your board. Three large breakers labelled L1, L2, L3 (or coloured red, white, blue) usually means three-phase. One main breaker usually means single-phase.

How old is the board? Switchboards older than roughly 25 years may not carry a dedicated EV circuit safely, and many still use ceramic fuses rather than modern circuit breakers. An ageing board is not a dealbreaker, but it often means a switchboard upgrade is part of the job. Typical upgrade cost in Brisbane sits around $1,200-$2,000 depending on size and condition, though your exact situation will vary.

Is there a spare circuit breaker slot? If your board has no room, that needs sorting before the charger goes in. Take a photo of your open switchboard and have it ready. A clear photo saves more time than any description.

Measure the Run From Board to Parking

Where you park determines how much cable is needed, and cable length affects cost more than most people expect. A charger mounted directly on the wall of an attached garage two metres from the switchboard is a short, simple job. A charger on the side fence of a Highgate Hill home, where the board is inside and the driveway wraps around, is a longer run through wall cavities, under the house, or down a conduit.

Before your call, do this:

• Walk the most logical path from your switchboard to where you park.
• Measure it roughly, or step it out (one adult pace is close to one metre).
• Note any obstacles: concrete slabs to core-drill, brick walls, tiled floors, a garden bed in the way.

For homes across West End and South Brisbane, particularly older terrace-style properties, cable often needs to travel through a sub-floor space. For newer townhouses in Woolloongabba or Greenslopes, the board and garage are usually close together, which keeps costs down.

If you are in a unit or apartment, note whether your car bay is on the same floor as your apartment, how far below ground it sits, and whether body corporate has indicated any requirements. We handle body corporate approvals for apartment installations, but knowing the basics ahead of your call helps us give you a realistic timeline.

Understand What Charger Type You Actually Need

Not all EV chargers are the same, and the right choice depends on your car and your habits, not just on what looks impressive on the wall.

A Mode 2 portable cable plugs into a standard GPO outlet and charges at 2.4kW. It is slow (typically 10-15km of range per hour), but it costs almost nothing to install because no new circuit is needed. For someone who drives under 50km a day and charges overnight, this sometimes works fine. Be honest with yourself about whether it genuinely meets your needs or whether you will regret it in six months.

A Mode 3 dedicated wall charger (sometimes called a home EVSE, for electric vehicle supply equipment) uses a hardwired or 32A outlet circuit and delivers 7kW on single-phase or up to 22kW on three-phase. This is what most households install and what most EV manufacturers recommend for home use. Popular brands in Australian homes include Ocular, Zappi, Wallbox, and Evnex, among others. Each has trade-offs around smart features, solar integration compatibility, and price.

If you already have rooftop solar, flag that clearly in your call. A solar-integrated setup lets the charger draw from surplus solar generation during the day rather than pulling from the grid, which can meaningfully cut your running cost. Not all chargers support solar divert mode, so this affects which unit we recommend.

Think About Your Daily Driving Numbers

An electrician is not asking for your logbook, but two numbers help size the job correctly: how many kilometres you drive on a typical day, and whether you have any high-demand weeks (regular road trips, school runs across multiple suburbs, work commutes to the CBD from Tarragindi or Kangaroo Point).

As a rough guide, a 7kW charger running for eight hours overnight adds about 280-300km of range. For most Brisbane households, that covers three to four days of typical driving in one overnight session. If you routinely drive more than that, or if you want a full charge every single morning, the conversation shifts toward three-phase power and a faster charger.

Check for Any Solar or Battery System Already on the Roof

If your home has a photovoltaic (PV) solar system, pull out the original installation paperwork or check your electricity bill for your export rate and system size in kilowatts. We need to know the inverter brand and whether you have a battery like a Tesla Powerwall or SonnenBatterie, because integration affects the charger type and the wiring approach.

For homes across Camp Hill, Coorparoo, and East Brisbane, rooftop solar is common, and a growing number of our installations link the charger to an existing system. The benefit is real but not unlimited: solar divert charging only works well if you are home during the day or your charger can be scheduled remotely. If you commute and your car sits in a work carpark until 6pm, solar integration saves you less than you might expect.

What to Expect on the Call Itself

With those details in hand, a first call typically runs 10-15 minutes. You should expect the electrician to ask about your address, property type (house, townhouse, or apartment), switchboard age and type, parking location, EV make and model, and whether you have solar. From there, a ballpark figure is usually possible, with a firm quote following a site visit.

For most standard homes in our service area, from Dutton Park to Greenslopes, a wall-mounted 7kW charger supplied and installed lands somewhere between $1,800 and $3,000. Jobs that involve a switchboard upgrade, a three-phase upgrade, or a long cable run from board to parking can push toward $3,500-$4,500. These are honest ranges, not starting prices designed to feel low.

If any quote you receive is significantly lower without a clear explanation of what is excluded, it is worth asking specifically about compliance certification, the charger brand being supplied, and whether the price includes AS/NZS 3000 compliant wiring and a certificate of test.

A Sensible Next Step

If you have worked through the checklist above, you are better prepared than most callers. You do not need to know everything. A licensed electrician should be comfortable explaining anything unclear. What matters is that you are not starting from zero, which means the conversation stays practical and the quote you get reflects your actual home rather than a generic estimate.

When you are ready, give us a call. We cover Coorparoo and the surrounding suburbs including West End, Woolloongabba, Camp Hill, Annerley, Kangaroo Point, and the rest of our service area. If a site visit helps, we can usually schedule one within a few days.