A standard home EV charger installation takes between two and four hours from the electrician arriving to the charger being live and tested. More complex installations, longer cable runs, consumer unit upgrades, or commercial multi-charger projects take longer, sometimes a full day or more. The timeline is not fixed because no two installations are identical: the distance between your consumer unit and the charge point location, the condition of your existing electrical infrastructure, and whether any groundworks are required all affect how long the job takes. This guide covers the full installation process step by step, what affects the timeline at each stage, and what you can do before installation day to help things run as smoothly as possible.
Why Installation Time Varies
Before looking at the steps, it helps to understand the two main variables that determine whether your installation sits at the short or long end of the timeline.
Electrical infrastructure. The condition and capacity of your consumer unit, the length and routing of the cable run from the consumer unit to the charge point location, and whether any upgrades are needed before the EV circuit can be safely added are the biggest time variables. A property with a modern consumer unit close to the proposed charge point location, with a straightforward cable route, is a two-hour job. A property with an older fuse board that needs upgrading, or a long cable run through finished surfaces, takes considerably longer.
Site-specific complexity. Whether groundworks are needed to bury cables across a driveway, whether the charge point is on an external wall or in a garage, and whether the cable route involves drilling through thick walls or running through multiple rooms all affect installation time independently of the electrical infrastructure question.
This is why a site survey before installation rather than a quote based on photos or a phone call is essential. The site survey is where the installer identifies the specific variables that will determine your actual installation timeline, and where anything that would add time or cost is identified before the job starts rather than discovered on the day.
Step 1 Arrival and Site Assessment (15–30 minutes)
The installation begins before any drilling or wiring takes place. The electrician carries out a final on-site review to confirm the conditions match what was established at the survey and to plan the specific approach for the day.
This step involves confirming the proposed charge point location, reviewing the cable route from the consumer unit, checking the consumer unit’s current condition and available capacity, identifying the specific drilling and fixing points, and confirming DNO notification is in place and correct for this installation.
For straightforward installations where a site survey was completed and nothing has changed since, this step is brief. For any installation where conditions differ from the survey a consumer unit that has been worked on since, or a proposed location that has become less accessible, this is where those differences are identified and the approach adjusted before work begins.
Step 2 Consumer Unit Assessment and Circuit Preparation (20–60 minutes)
The EV charger circuit is a new, dedicated 32A circuit run from the consumer unit. This step involves opening the consumer unit, assessing available space and capacity for the new circuit, fitting the appropriate RCBO (Residual Current Breaker with Over-current protection), and preparing the circuit connections.
The time this step takes depends heavily on the consumer unit’s condition:
Modern consumer unit with available capacity: Fitting the RCBO and preparing the circuit connections is a 20–30 minute step. Modern units are designed with spare capacity and accept additional circuits cleanly.
Older consumer unit requiring assessment: Units that are older or at full capacity require more time sometimes significantly more, to establish whether the existing unit can safely accommodate the new circuit or whether an upgrade is needed.
Consumer unit upgrade required: If the existing consumer unit cannot safely support the EV charging circuit because it is full, outdated, or does not meet current wiring regulation requirements the consumer unit itself needs replacing before the EV circuit is installed. This is typically a two to four hour job in its own right and is the most common reason an EV charger installation extends to a full day. If a survey identified this need in advance, it will have been quoted and planned for. If it was not identified until arrival, it becomes a same-day decision about whether to proceed or reschedule with the additional work planned in.
Step 3 Cable Installation (30–90 minutes)
The cable run from the consumer unit to the charge point location is typically the most time-variable step in the process, because cable route length and complexity varies more than any other single element.
Short, straightforward run: A charge point on the exterior wall of the property directly behind the consumer unit, with a simple route through the cavity or along the internal wall, is a 20–30 minute cable installation.
Longer internal run: A cable run that needs to travel across rooms, through multiple walls, or along significant internal distances takes longer particularly where surface mounting rather than chasing into walls is the appropriate finish, and where the route requires drilling through structural elements.
External or underground run: Where the charge point is on a separate outbuilding, garage, or on the opposite side of the property from the consumer unit, the cable route may need to go underground either through existing ducting or via new groundworks. Trenching across a driveway or garden, laying conduit, and reinstating the surface is a separate groundworks element that can add several hours or a full day to the project.
Armoured cable for external runs: Where cable runs outside the property for any significant distance, steel wire armoured (SWA) cable is typically used rather than standard twin and earth. SWA cable is more time-consuming to terminate and route but is the correct specification for external buried installations.
For most straightforward domestic installations the charge point on or near the house, the consumer unit accessible, the route clean cable installation takes 30 to 60 minutes.
Step 4 Charge Point Mounting and Connection (20–40 minutes)
With the cable in place, the charge point unit itself is mounted to the wall and connected. This step involves:
- Drilling and fixing the back plate or bracket to the wall surface
- Routing the cable into the charge point enclosure
- Making the electrical connections inside the unit live, neutral, earth, and any communication cables for smart functionality
- Fitting and securing the front cover
- Confirming the physical installation is secure and correctly positioned
Charge point mounting and connection is typically the most consistent step in terms of time; it varies less between installations than the consumer unit and cable steps because the unit itself is standardized. Most charge points take 20 to 40 minutes to mount and connect correctly.
Step 5 Smart Charger Configuration (15–30 minutes)
All new EV charger installations in Great Britain must be smart-compliant under the Electric Vehicles (Smart Charge Points) Regulations 2021. Smart configuration is therefore not optional it is a legal requirement for every new installation.
This step involves:
- Connecting the charge point to the property’s Wi-Fi network or confirming mobile data connectivity
- Registering the unit with the manufacturer’s app or back-office platform
- Configuring off-peak charging schedules where applicable
- Verifying that all smart functions demand-side response, randomised delay, remote communication are operational
- Testing app connectivity and confirming the unit appears correctly in the owner’s account
For charge points with straightforward app setup, this step takes 15 to 20 minutes. For units that require additional configuration load management setup, solar divert integration, or fleet management platform registration it takes longer.
Step 6 Testing and Inspection (20–30 minutes)
Before the installation is signed off, the electrician carries out a full inspection and test of the completed circuit in line with BS 7671 requirements. This is not optional it is a regulatory requirement for notifiable electrical work, and the results are recorded in the Electrical Installation Certificate.
Testing includes:
- Continuity testing of the protective conductors
- Insulation resistance testing of the circuit
- Polarity checks
- Earth fault loop impedance measurement
- RCD operation test
- Functional test of the charge point confirming it powers up, communicates correctly, and charges a connected vehicle
The testing step is one of the most consistent in terms of time it follows a defined sequence regardless of the complexity of the installation. Most installations are fully tested within 20 to 30 minutes.
Step 7 Certification and Handover (15–20 minutes)
The final step is documentation and handover. This includes:
- Completing and issuing the Electrical Installation Certificate (EIC) the legally required document for all new EV charger circuits under Part P
- Confirming DNO notification has been completed and providing confirmation documentation
- Issuing OZEV grant documentation where applicable
- Walking through the charge point operation with the homeowner how to use the app, how to set charging schedules, how to read charging status from the indicator lights
- Answering any questions about the unit and ongoing maintenance
This step takes 15 to 20 minutes for a standard installation. For commercial installations with multiple units and more complex documentation requirements, handover takes longer.
Full Timeline Summary
| Installation type | Typical total time |
| Standard home installation straightforward cable run, modern consumer unit | 2–3 hours |
| Home installation longer cable run or slightly more complex route | 3–4 hours |
| Home installation consumer unit upgrade required | 4–6 hours (full day) |
| Home installation groundworks for underground cable run | Full day, sometimes two |
| Commercial installation single charger, straightforward | 3–4 hours |
| Commercial installation multiple chargers, load management | 1–2 days |
| Commercial installation DNO infrastructure works required | Multiple days, planned in advance |
What Can Make an Installation Take Longer Than Expected
Even well-planned installations sometimes take longer than the initial estimate. The most common causes:
Unexpected consumer unit condition. An older fuse board that was expected to accept the new circuit requires replacement once the electrician opens it and assesses its internal condition. This is the single most common cause of a planned half-day job becoming a full day.
Difficult cable routing. Thick external walls, solid floors, or structural elements that cannot be drilled through require rerouting the cable run via a longer alternative path.
Wi-Fi connectivity issues. Smart charger configuration relies on a stable Wi-Fi signal at the charge point location. Where the signal is weak or intermittent, additional time is needed to resolve connectivity before configuration can be completed, sometimes involving a Wi-Fi extender or a different communication method.
DNO issues identified on the day. On rare occasions, the DNO assessment produces a restriction on the installation that was not anticipated at the survey stage. This typically requires communication with the DNO before the installation can proceed.
Access issues. Where the consumer unit, proposed charge point location, or cable route is less accessible than expected due to stored items, finished surfaces, or structural constraints the installation takes longer to complete safely.
What You Can Do to Help the Installation Run Smoothly
A few simple preparations before installation day help the process run to time:
Clear access to the consumer unit. The consumer unit is almost always in a cupboard, garage, or utility area that accumulates stored items. Clearing a working space around the consumer unit before the electrician arrives saves time and ensures safe working conditions.
Confirm the charge point location in advance. If there is any uncertainty about exactly where on the wall the charge point will be positioned, resolve this at the survey stage rather than on installation day. Changing the proposed location on the day of installation can require replanning the cable route.
Ensure Wi-Fi access details are available. The smart charger setup requires connecting the unit to your home network. Have your Wi-Fi network name and password ready before the installer arrives.
Keep the parking space clear. The installer needs access to the area immediately below or beside the proposed charge point location for mounting and cable routing. Keeping a vehicle out of the way for the duration of the installation helps.
Advise on any access restrictions. If there are times during the installation when drilling or noise cannot occur young children sleeping, home office calls are scheduled to let the installer know in advance so the noisiest steps can be timed accordingly.
Frequently Asked Questions
How long does EV charger installation take?
A standard home EV charger installation takes two to four hours for most properties with a modern consumer unit and a straightforward cable run. More complex installations, consumer unit upgrades, longer cable routes, or groundworks can extend the timeline to a full day or longer. The only way to know accurately for your specific property is a site survey, which is why EV Install Pro carries out a survey before quoting on every job.
What are the steps involved in EV charger installation at a residential property?
The steps are: arrival and site assessment, consumer unit inspection and circuit preparation, cable installation from the consumer unit to the charge point location, charge point mounting and connection, smart charger configuration and app setup, electrical testing and inspection to BS 7671, and certification and handover documentation including the Electrical Installation Certificate.
Can an EV charger be installed in one day?
Yes, for most standard domestic installations the job is completed in two to four hours, well within a single day. Installations requiring a consumer unit upgrade or groundworks typically take a full day. Multi-charger commercial installations are planned over one to two days depending on scale.
What can make EV charger installation take longer?
The most common causes of extended installation time are a consumer unit that needs upgrading before the EV circuit can be safely added, a longer or more complex cable run than anticipated, difficult drilling through thick or structural walls, Wi-Fi connectivity issues affecting smart charger configuration, and unexpected DNO requirements identified on the day.
Do I need to be home during EV charger installation?
Yes, an adult should be present throughout the installation. The electrician needs access to the consumer unit, which is typically inside the property, and the smart charger configuration and handover require your presence at the end of the job to walk through the app setup and confirm you understand how the unit operates.
What documentation do I receive after EV charger installation?
You should receive a full Electrical Installation Certificate (EIC), a Building Regulations compliance certificate under Part P, DNO notification confirmation, and OZEV grant documentation if applicable. These documents are important for insurance purposes, property sale, and charger warranty claims. If an installer cannot provide the required documentation, the installation may not be fully compliant.
Does EV charger installation require the electricity to be turned off?
Yes, consumer unit work requires the electricity supply to be isolated. For most installations, this means a brief period without power to the property while the new circuit is connected. The duration depends on how complex the consumer unit work is, typically 30 to 60 minutes for a standard circuit addition. Your installer will advise on this when planning the installation.
Book Your EV Charger Installation
Every EV Install Pro installation starts with a site survey. We assess your consumer unit, cable route options, and DNO requirements before quoting, so the timeline and price we give you are accurate before the job starts.
We are OZEV-approved and NICEIC-registered, handling DNO notification, Part P certification, smart charger configuration, and full Electrical Installation Certificate as standard on every job.
For a full breakdown of what installation costs, see our EV charger installation cost guide. For information on grants that may apply to your installation, see our EV charger grants guide. To understand which charger is right for your home, see our 3kW vs 7kW vs 22kW comparison guide.
Contact us to arrange a no-obligation site survey and written quote.
[…] For a full breakdown of what installation costs, see our EV charger installation cost guide. For information on grants that may reduce your upfront cost, see our EV charger grants guide. To understand how long the installation process takes from arrival to completion, see our EV charger installation process guide. […]