021 194 9138 Monday – Sunday, 24 Hours
Clear 6-Step Process

EV Charger Installation in Mairehau — What to Expect

Your EV charger installation in Mairehau should be something you can plan around — not an open-ended job where costs turn up on the day. We lock in every number upfront, complete the full scope in a single visit, and issue a Certificate of Compliance on-site before we head off.

For most Mairehau homes, first contact to first charge takes less than one week. We carry out our assessment from photos you send us, which means no waiting around for a tradesperson to arrive before the job even starts.

  • Photo-based assessment — no site visit needed in most Mairehau cases
  • Written fixed-price quote returned within 24 hours
  • Complete installation in a single visit — nothing left for a second day
  • Certificate of Compliance included in the price, issued before we leave
EV charger professionally installed in a Mairehau residential garage

The Numbers at a Glance

Enquiry to first charge — typically less than one week

24hrFixed-price quote
3–6hrOn-site install
100%CoC every job
1
Reach Out
Phone, text, or online form
2
Review & Price
Photos assessed, price fixed
3
Install
Single visit, all done
4
CoC & Charge
Certified and charging

The Complete Mairehau EV Charger Installation Process

From initial contact to completed installation — the full process explained without jargon.

1

Make Contact

Reach us on021 194 9138, by text, or through the online form. Share your vehicle make and model, the location you have in mind for the charger, and your address in Mairehau. The first contact is quick — a few minutes and we have everything we need to get started.

2

Photograph Your Setup

We'll request photographs of your switchboard with the cover open, the wall where you'd like the charger fixed, and the intended cable path between the two points. Most Mairehau installations can be fully assessed from these images alone — no site visit required and no cost for the assessment.

3

Your Fixed-Price Quote

A line-by-line written quote arrives within 24 hours. It covers all labour, materials, cabling, conduit, the dedicated 32A circuit, charger mounting, app configuration, and your Certificate of Compliance. The number is locked — if your switchboard needs work, it's costed upfront, not flagged once we're already on-site.

4

Confirm and Choose Your Day

Accept the quote with a quick reply and we'll lock in a day that suits you — weekdays or Saturdays available. Mairehau installations typically book in 2–5 working days from acceptance. A booking confirmation follows, with a reminder text the evening before.

5

Installation Day Proper

Registered electricians show up on time with all materials ready. The job covers the full scope: 32A dedicated circuit from your switchboard, charger mounting and termination, conduit where the cable is exposed, CT clamp installation for DLB if applicable, and full network setup. Most Mairehau installs are done within 3–6 hours. Site is left tidy.

6

Customer Handover & Compliance Certificate

We wrap up with a full handover — covering manual charge start, overnight scheduling on cheaper off-peak rates, and energy monitoring on your phone. Your EV is plugged in for a confirmed live charge test. The Certificate of Compliance is issued before we leave the property and emailed to you the same day, as required under the NZ Electricity Act 1992.

Everything Covered in Every Installation

The fixed price is exactly that — fixed. Here's every item included in every installation, with no exceptions:

Charger Unit (If We Supply)

If we're supplying the charger unit, it forms part of your quoted price. We match the model — Evnex, Wallbox, Zappi, Tesla Wall Connector, or Smart EV Charger — to your EV and home setup before ordering.

Dedicated 32A Circuit

A new dedicated 32A circuit runs from your consumer unit to the charger — properly sized cable, conduit where required, junction boxes, and a new MCB at the board. Your EV circuit is completely independent of existing household wiring.

Wall Mounting & Termination

The charger is mounted at the right height and all internal connections are terminated to manufacturer spec. Cable entries are sealed and outdoor or semi-exposed positions receive IP-rated weatherproofing.

DLB & CT Clamp Installation

Where DLB is specified, we clip the CT clamp to the mains feed inside your switchboard, pair it with the charger, and set appropriate thresholds. From that point, the charger self-manages — reducing output whenever other household loads demand it.

Network Connection & App Setup

Network connection, app install, and off-peak schedule setup are all part of the job. We set up the manufacturer app on your phone, connect the charger to your WiFi, and configure overnight scheduling to suit your electricity plan.

Certificate of Compliance (CoC)

Under the NZ Electricity Act 1992, a Certificate of Compliance is mandatory for all new electrical work including EV charger installations. We prepare and issue one on-site for every job, with a digital copy emailed the same day.

Residential switchboard being assessed for EV charger installation capacity in Mairehau

What We Evaluate Before Sending Your Quote

We can quote from photos because we assess the factors that actually matter. Here are the four things we look at in your images and why each one matters for your installation:

  • 1
    Switchboard Capacity & Condition

    We evaluate your consumer unit's rated capacity, the number of available circuit slots, and the existing household load. Most Mairehau homes built since the mid-1990s have adequate capacity for a 7.4kW charger, especially when paired with DLB. Any required upgrades are costed transparently in your quote.

  • 2
    Cable Route & Distance

    The route from your switchboard to the charger determines the cable size and the total materials bill. We base the quote on the real measured run for your Mairehau property, not a generic allowance.

  • 3
    Mounting Wall & Location

    We look at wall construction (timber framing, masonry, or cavity brick), the cable entry route, and weatherproofing requirements. This determines whether a standard mount suffices or additional fixings and sealing are needed — all worked out before we arrive.

  • 4
    Vehicle & Charger Compatibility

    Connector type (Type 2 or Type 1), the vehicle's onboard charging limit, and whether solar is part of the picture all influence the charger selection. We check compatibility before recommending a model, so the unit quoted is the right one for your Mairehau home and vehicle.

A Typical Installation Day — Hour by Hour

This is how a standard Mairehau installation day runs. Times shift with cable route and switchboard complexity — most jobs are done inside 3–6 hours.

8:00 am
Team Arrival & Installation Briefing
We arrive at the agreed time, walk through every element of the job with you — switchboard, cable path, charger placement — and prepare materials before starting.
8:30 am
Running the 32A Circuit
The dedicated 32A circuit is pulled from your consumer unit to the charger position, routed via whichever void or cavity suits the property. Conduit protects any externally exposed cable runs.
10:30 am
Mounting & Wiring the Charger
The charger is fixed at the confirmed position and height. Wiring is terminated to spec, then polarity, earth, and circuit integrity are checked before the circuit is energised.
11:30 am
Switchboard Connections & DLB Wiring
New MCB added to the board for the EV circuit. CT clamp fitted to the mains feed for DLB installations. Only affected circuits are isolated during this stage.
12:00 pm
Live Test & App Configuration
Circuit live, charge session confirmed with your EV, DLB verified where fitted. Manufacturer app installed on your phone, schedule configured, energy monitoring active.
1:00 pm
Final Handover & CoC
All features demonstrated. CoC issued and emailed. Site left clean and tidy. Plug in tonight.

Which Home Charger Suits Your Setup?

Charger selection depends on your EV connector type, your board's capacity, and your solar setup if any. We work through this in the photo assessment — this is the overview:

Type 2 Smart Charger + DLB Most Popular

Chosen by most Mairehau homeowners. The 7.4kW Type 2 with DLB is compatible with every current EV sold in New Zealand, works within most standard switchboards, and enables scheduling to the cheapest overnight window on your electricity plan.

Works with: Tesla, BYD, Hyundai, Kia, MG, BMW, Audi, VW, Volvo, Mercedes, Polestar, and all new-market NZ EVs.

Learn more about Type 2

Type 1 Charger (J1772)

Required for Japanese-market vehicles with a J1772 inlet. Level 2 Type 1 charging is three to four times faster than a standard wall socket, which makes a material difference for Leaf owners and PHEV drivers using their vehicle every day.

Suits: Nissan Leaf (all generations), Mitsubishi Outlander PHEV, Nissan e-NV200, and other J1772 vehicles.

Learn more about Type 1

Solar-Ready Smart Charger

If you have solar at your Mairehau home, a solar-integrated charger like the Zappi, Evnex E2 Plus, or Smart EV Charger channels surplus generation directly into your EV, reducing or eliminating your effective charging cost on good solar days.

Ideal for: Homes with existing solar panels looking to maximise self-consumption and lower running costs.

Learn more about Solar & EV

Will My Switchboard Need Upgrading?

For most Mairehau homes, the answer is no. If your property does need an upgrade, you'll find it clearly priced in the written quote — nothing is introduced as a surprise on installation day.

Consumer units installed in most Mairehau homes from the 1990s onwards have the capacity to support a 7.4kW EV charger. DLB provides a further layer of protection, automatically reducing charger output in real time if household draw climbs toward the board's limit.

Switchboard upgrades are required in a genuine minority of jobs — primarily older fuse-board installations or homes with limited mains capacity. Where needed, the upgrade is scoped, priced, and completed on the same day as the charger installation.

Switchboard Upgrade Info
Upgrade typically NOT needed — when
  • Modern consumer unit with at least one spare MCB slot
  • Single-phase mains service rated 63A or above
  • A DLB-equipped charger is being installed
  • Existing household load is comfortably below the board's rated limit
  • Mains cable between meter and switchboard is 16mm² or heavier
Upgrade likely needed — when
  • Older rewireable fuse board without MCB protection
  • Single-phase service restricted to 40A or below
  • Consumer unit has no available circuit positions
  • Property already runs heat pumps, a spa pool, or high-draw workshop equipment
  • Planning to install an 11kW three-phase charger on a single-phase supply

No Guesswork, No Hidden Costs — Begin with a Free Quote.

A few photos of your switchboard and intended charger position is everything we need to return a firm written quote within 24 hours. No assessment fee, no obligation. Call 021 194 9138 or fill in the form online.

Questions About the Installation Process — Answered

The most common questions from Mairehau homeowners before they book — answered directly.

For most Mairehau homes, absolutely. Send us an open-switchboard photo, a shot of the charger location, and a general view of the cable path, and we can return a fixed written price. We'll ask follow-up questions or request an extra photo if something needs clarification. A physical visit is only required in a small minority of jobs with complex access or masonry construction.

Expect 3–6 hours for a typical Mairehau installation. Straightforward garage jobs with short cable runs often finish closer to 3 hours. More complex jobs — longer runs, masonry walls, or switchboard work — may take 5–7 hours. Everything is always completed in a single visit.

Be home at the start for the pre-work walk-through and at the end for the handover — the hours in between are flexible. We contact you if anything arises mid-job, though that's uncommon. Your main household power stays on; only the circuits directly involved are isolated at the board.

No whole-house outage. We isolate only the specific circuits being worked on, leaving everything else in your Mairehau home operational. When we add the new MCB to your board, there's a brief 5–10 minute window where a few circuits temporarily drop — we'll let you know before it happens.

From quote acceptance, most Mairehau installations book in within 2–5 working days. Where a specific charger model is on order, add 2–4 business days for supply. We confirm the earliest slot on acceptance. Saturdays are bookable at the same rate as weekdays.

Three images are enough for most Mairehau assessments: (1) switchboard open showing all circuit breakers, (2) the proposed charger wall or post, (3) the general cable path from board to charger. Unsure what counts? Call us — we'll talk you through it quickly.

A CoC certifies that your new electrical installation was carried out by a registered electrician to the AS/NZS 3000 standard. Under the NZ Electricity Act 1992, it's compulsory for all new electrical work — EV chargers included. Without it, the installation is unlawful, your home insurance may be at risk, and selling the property becomes more complicated. We issue a CoC with every installation at no extra charge.

Within practical limits, yes. Where you want the charger affects cable run cost, circuit routing, and whether the wall can support the unit. We review your preferred location during the assessment and flag any alternatives worth considering. Exact height and position are confirmed with you on installation day before any work begins.

Our work comes with a full workmanship warranty. If a fault traces back to something we did, we come back and fix it at no charge. For issues with the charger hardware itself, we'll help you work through the manufacturer's warranty. Ring021 194 9138 and we'll handle it.

A standard installation — up to a 10-metre cable run — is $950 incl. GST for labour. That includes everything: dedicated circuit, cabling, mounting, DLB setup if applicable, app configuration, and CoC. Charger hardware is priced separately from $799 incl. GST when supplied by us. Full pricing detail is on our pricing page.

EV Charger Installation Service Area – Christchurch & Canterbury

We install residential EV chargers across Christchurch, Banks Peninsula, and North Canterbury. Select a letter to find your suburb.