How much does a home charger cost to install?

A typical 7 kW home wallbox charger costs £800-£1,200 fully installed. Prices vary depending on the brand, cable length, and complexity of the electrical work. The UK government OZEV grant (where applicable) can reduce the cost.

Is a home charger better than a 3-pin plug?

Yes, significantly. A 7 kW wallbox charges about 3 times faster than a 3-pin plug (2.3 kW), is weatherproof, and designed for daily use. 3-pin plugs can overheat with prolonged use and most EV manufacturers recommend a dedicated wallbox.

Do I need permission to install a home charger?

In most cases, installing a home charger is permitted development and does not require planning permission. However, if you live in a listed building, conservation area, or flat with shared parking, you may need to check with your local authority.

Can I get cheaper electricity for EV charging?

Yes, many energy suppliers offer EV-specific tariffs with cheap overnight rates (typically 7-12p/kWh between midnight and 5am). A smart charger can be programmed to only charge during these cheap periods.

Do I need planning permission for a home EV charger?

In most cases, no. Home EV chargers are permitted development as long as they are wall-mounted, not in a conservation area, and do not face a highway. Listed buildings may need consent. Your installer should advise on any local requirements.

CarCalcs

Home Charger Calculator

Calculate the payback period for installing a home EV charger.

Installation Cost

Annual Mileage

Efficiency

Home Rate

Public Rate

How We Calculate This

This calculator compares the cost of home charging versus public charging to determine when a home charger pays for itself.

The Formulas

Annual kWh = Annual miles / Efficiency (mi/kWh)
Annual home cost = Annual kWh x Home electricity rate
Annual public cost = Annual kWh x Public charging rate
Payback period = Installation cost / Annual saving x 12 months

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Actual figures may vary based on driving conditions, vehicle specifications, and other factors.