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If you are about to book an EV charger and you are wondering exactly how long an EV charger installation takes, this guide gives you the realistic answer for 2026 in Scotland. The short version: most domestic installs are completed in 3 to 5 hours on a single visit. The longer version (which we recommend reading) covers what affects the duration, what the day actually looks like hour by hour, the scenarios that push the time up to a full day or more, and how to plan for the install with the least possible disruption to your normal routine. Faithful Spark Electricians has completed hundreds of installs across Aberdeen, Peterhead, Ellon, Fraserburgh, and the wider Aberdeenshire area, and the timings below reflect real Scottish jobs, not idealised manufacturer claims.
The short answer: 3 to 5 hours for most homes
For a standard 7 kW home EV charger fitted by a NICEIC approved Scottish electrician, expect 3 to 5 hours of on site work. That assumes a typical UK domestic property, single phase supply, modern consumer unit with at least one spare way, off street parking on the same side as the meter cupboard, and a cable run of 10 metres or less.
Within that 3 to 5 hour window, the actual work breaks down into roughly five stages: arrival and isolation, cable routing, charger mounting, electrical termination, and commissioning. Each stage takes 30 to 60 minutes depending on the property. The stages are not always sequential. Two engineers working together can run the cable while one mounts the charger and the other prepares the consumer unit.
If you ever see an install advertised as “1 hour” or “2 hour fitting,” treat that as a marketing claim, not a realistic estimate. Even the simplest install requires safety isolation, a proper test sequence, the BS 7671 certification paperwork, and a full functional test of the charger with a real EV. Cutting corners on time means cutting corners on something else, and on EV installs that something else is usually testing or notification.
For a wider Scottish pricing baseline (the cost is closely tied to the time), see our breakdown of EV charger installation cost in Scotland.
The five things that drive the duration
Before you book, it is worth understanding why one Aberdeen install takes 3 hours and another at the apparently identical house next door takes 7. Five variables drive almost all the variation.
1. Cable run length
The single biggest variable. A 5 metre run takes 30 minutes. A 25 metre run takes 90 minutes or more, especially if it has to be buried, run through a wall cavity, or routed across a soffit. Above 15 metres we typically use a thicker cable to compensate for voltage drop, which adds time at the termination stage.
2. Consumer unit work
If your existing fuseboard has a spare way and is BS 7671 18th Edition compliant, adding the new EV circuit takes 30 to 45 minutes. If the consumer unit needs upgrading at the same visit (older Wylex board, no spare ways, missing RCD protection), the upgrade adds 2 to 3 hours.
3. Earthing arrangement
Most modern Aberdeen homes are on a PME supply (Protective Multiple Earthing) with an existing earth provided by the network operator. These are quick to terminate. Some older or rural properties are on a TT supply, which often requires an earth rod, or alternatively an O PEN compliant charger that handles its own earth fault detection. Earth rod installs add 30 to 60 minutes including testing.
4. Charger model
Some chargers are quicker to install than others. The Easee One has the slickest wall mount system in the market and saves around 20 minutes versus a Zappi or Wallbox. The Zappi has more terminals to land but compensates with built in O PEN protection that simplifies the earthing work. The choice rarely affects total time by more than 30 minutes.
5. Commissioning and app setup
Connecting the unit to your home wifi, setting up the app on your phone, configuring smart tariff schedules, and demonstrating Eco or Eco+ modes (where applicable) takes 30 to 60 minutes. Most homeowners want a full walkthrough so they understand what they are paying for.
An hour by hour walkthrough of a typical Aberdeen install
Here is what a real, typical install looks like end to end. This is a 7 kW Zappi v2 fitted to a 1990s Aberdeen home in Mannofield, single phase, modern dual RCD consumer unit with a spare way, 10 metre cable run from meter cupboard to driveway. The whole job took 4 hours 15 minutes.
Hour 0 to 0:30: Arrival and survey confirmation
Engineer arrives, introduces himself, walks through the agreed work, confirms the parking, the proposed cable route, and the wall position for the charger. He asks for access to the meter cupboard and confirms the homeowner is happy with the plan from the survey. He puts down dust sheets where the cable will pass through internal spaces.
Hour 0:30 to 1:00: Isolation and consumer unit prep
Engineer isolates the consumer unit, locks off the main switch, and verifies safe isolation with a calibrated voltage tester. He removes the consumer unit cover, identifies the spare way, and prepares the new RCBO or MCB plus RCD combination for the EV circuit. He also confirms the supply rating and checks that the existing main fuse is adequate for the new load.
Hour 1:00 to 2:00: Cable run
The 10 metre cable run goes from the consumer unit, up through the boxing in the kitchen, into the loft, down through the wall cavity behind the lounge wall, out through a small wall penetration, and along the exterior wall to the agreed charger position. Drilling, clipping, and dressing the cable takes the bulk of the time. The cable is then left coiled at the charger end and loose at the consumer unit end, ready for termination.
Hour 2:00 to 2:45: Charger mount and termination
Engineer marks the charger position, drills four masonry fixings, and mounts the back plate. He terminates the cable into the back plate, fits the charger body, and fastens the cover. He then returns to the consumer unit and terminates the supply end into the new EV circuit.
Hour 2:45 to 3:30: Testing
Full BS 7671 test sequence: continuity, insulation resistance, polarity, earth fault loop impedance, RCD function. Results recorded on the Electrical Installation Certificate. Power restored to the consumer unit, EV circuit live, charger powers up.
Hour 3:30 to 4:15: Commissioning and walkthrough
Engineer connects the charger to the home wifi, helps the homeowner install the app on their phone, walks through the modes, schedules off peak charging on Octopus Go, and demonstrates a charge with the homeowner’s EV plugged in. He registers the install with NICEIC for Building Standards notification, prints the certificate on his portable printer, hands it over, and emails a digital copy. He cleans up, takes the dust sheets out, confirms the homeowner has no remaining questions, and leaves.
Total elapsed time: 4 hours 15 minutes. The homeowner had plenty of time to do other things during the install. Internet stayed up, lights stayed on for most of the visit (the consumer unit was only isolated for 90 minutes).
Scenarios that push the time longer
Some installs genuinely need a full day. We tell homeowners upfront when this is the case, so they can plan accordingly. Three common longer scenarios.
Scenario A: Consumer unit upgrade plus EV charger, around 6 to 8 hours
If the existing consumer unit needs replacing (rewireable fuse type, plastic cased Wylex without dual RCD protection, or simply at capacity), the upgrade itself takes 2 to 3 hours, and the EV charger another 3 to 4 hours on top. Most can still be done in a single day, with the homeowner without power for around 2 hours mid morning while the new consumer unit is fitted and tested.
Scenario B: Long buried cable run to a detached garage or outbuilding, 6 to 9 hours
For rural Aberdeenshire homes where the parking spot is 20 to 35 metres from the consumer unit and the cable has to be buried (commonly in 600mm SWA armoured cable through a paved or gravelled area), the civils alone add 2 to 4 hours. The electrical work is unchanged. We typically lift, dig, run cable, backfill, and reinstate paving in one day, with two engineers on site.
Scenario C: Three phase 22 kW install, 5 to 7 hours
Three phase installs are slower because there are three live conductors instead of one, and the charger termination is more involved. The actual cable run is the same speed, but the consumer unit work and commissioning take longer. Three phase is uncommon in Aberdeen homes but standard at rural Aberdeenshire farmhouses, larger commercial premises, and EV charger forecourts.
What you should plan for on the day
Most Aberdeen homeowners ask the same set of practical questions about install day. Here are short, honest answers.
- Will I have power during the install? Mostly yes. The consumer unit is isolated for around 60 to 90 minutes during the work, so plan accordingly. Internet routers, freezers, and PCs can lose power briefly. We try to schedule isolation around what is convenient, including timing it to coincide with a school run or a coffee break.
- Do I need to be home? Yes, ideally. We need access to the meter, to the parking, to your wifi, and to your phone for the app setup. Most homeowners simply work from home that day or take the morning off.
- Will it make a mess? Minimal. We use dust sheets in any internal spaces, vacuum after drilling, and tidy up before leaving. Cabling outside is usually clipped neatly and out of sight.
- How loud is it? Drilling masonry for the back plate fixings is loud for around 5 to 10 minutes. Routing through cavities is quieter. Most of the day is calm work in the consumer unit and at the charger.
- What happens if it rains? We work through normal Aberdeenshire weather. Heavy rain can briefly delay outdoor cable work, but is rarely a full day delay. Snow and severe weather are different. We will reschedule if conditions are unsafe.
- Do you take card or do I need to pay cash? Card, BACS, or invoice payment terms. We never ask for cash up front.
From booking to charging: the wider timeline
The 3 to 5 hour install day is the visible part. The wider timeline from your first enquiry to your car plugged in for the first time typically runs as follows in Scotland.
- Day 1: You enquire. We ask 5 to 10 quick questions, qualify the job, book a survey slot.
- Days 3 to 5: In person survey at your property, around 30 minutes.
- Days 5 to 7: Written, itemised quote sent. Every line broken out clearly, with any grant deducted up front.
- Days 7 to 14: You decide, sign off the quote, and we book the install date.
- Days 14 to 21: Install carried out. Charger commissioned the same day. Certificate emailed. You charge your car for the first time that evening.
For genuinely urgent installs we can compress this to 5 to 7 days end to end. For larger projects involving consumer unit upgrades, three phase work, or significant civils, the timeline stretches to 4 to 6 weeks because of supply chain on bigger materials.
Frequently asked questions
Can a single engineer do the install or do you need two?
For most domestic single phase installs, one experienced engineer can complete the job comfortably in 3 to 5 hours. For larger commercial work, three phase installs, or jobs with civils (buried cables, paving lifts), we send two engineers. Two engineers also speed up the work where the cable run is long or runs through awkward routes.
Will the install affect my home insurance?
Provided the install is carried out by a registered electrician, certified to BS 7671, and notified to Building Standards, your home insurance is not affected. We supply all of those documents. A small minority of insurers ask to be informed when an EV charger is added. If yours does, we will give you the certificate reference and the Building Standards notification number to share with them.
Can the install be done in stages?
Generally no. The install is a single project that has to be commissioned and certified end to end. There are limited exceptions where a consumer unit upgrade is done first, separately, before the EV charger is fitted at a later visit. We design the plan around your needs at the survey.
What is the longest install you have ever done?
A rural three phase 22 kW commercial install at a hospitality facility north of Fraserburgh. 14 sockets across 7 chargers, 600 metres of trenched SWA armoured cable across a paddock to a guest car park, with a sub board, OCPP back office commissioning, and signage. Two engineers, four days on site over a fortnight, plus a planning consent stage in advance. Worth it for the customer because the install became a measurable boost to the business’s guest bookings.
Can you fit a charger in winter?
Yes. Aberdeenshire winter conditions are well within the operating envelope for both the chargers themselves and our installation work. We use cable suitable for sub zero conditions and complete commissioning under cover wherever possible. Severe weather days (heavy snow, gale force winds) get rescheduled for safety, but those are rare.
How quickly can you fit a charger if I am in a real hurry?
For a simple residential install with a clear scope, we can sometimes turn around inside 5 to 7 days from first enquiry. Survey on day 2, install on day 5 or 6. We hold a small number of express slots specifically for genuinely urgent jobs. Just ask at enquiry.
Do you provide an exact time on the day?
Yes. We book a fixed time slot, either morning (08:30 to 09:30 arrival) or afternoon (12:30 to 13:30 arrival). We never give a “we will arrive sometime today” window. Time is precious for our customers and we respect that.
Book your home EV charger install
If you are ready to move from “thinking about it” to “having it fitted,” get in touch. Faithful Spark Electricians offers a free in person survey, a written itemised quote, and an install in 2 to 3 weeks across Aberdeen, Peterhead, Ellon, Fraserburgh, and the wider Aberdeenshire area. Most installs are completed in 3 to 5 hours on a single visit. The whole timeline from first enquiry to charging your car can be as short as a fortnight.
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Faithful Spark Electricians. NICEIC approved. OZEV listed. Serving Aberdeen, Peterhead, Ellon, Fraserburgh and across Aberdeenshire.
