Beginner’s guide to buying an EV charger for your home

So, you’ve ordered your first electric car — exciting! Maybe it’s a Tesla Model Y, a BMW i4, or an Audi Q8 e-tron.

But now comes the next big question: how do you charge it at home?

If you’re not technical, it can feel overwhelming. Chargers, kilowatts, tethered or untethered cables, smart features, and something called the DNO — it all sounds complicated.

Don’t worry. It’s actually much simpler than it first seems. In this guide, we’ll walk you through everything you need to know. By the end, you’ll understand the different charger types, costs, installation process, and what to watch out for — so you can make confident decisions and get charging your EV at home without stress.

Why do i need a home EV charger?

Technically, you can charge your electric vehicle using a standard 3-pin plug socket. Most EVs come with a cable that allows you to do this.

However, it isn’t designed as a long-term solution.

Charging from a standard socket is slow — very slow. A full charge can take well over 24 hours depending on the vehicle. It’s best thought of as a backup option rather than your everyday charging method.

That’s why most homeowners install a dedicated 7kW home EV charger

In real terms, a 7kW charger typically adds around 25–30 miles of range per hour. That means you can plug in overnight and wake up to a full battery, ready for the day ahead.

For the vast majority of UK homes, 7kW is the standard and correct choice. You rarely need anything more powerful for domestic charging.

The first decision: tethered or untethered?

This is usually the biggest choice you’ll make — and it’s simpler than it sounds.

A tethered charger has the charging cable permanently attached to the unit. You simply park, grab the cable, and plug it into the car. It’s quick, convenient, and particularly helpful in poor weather. For everyday ease, most homeowners prefer this option.

An untethered charger does not have a cable attached. Instead, you use the cable supplied with your vehicle each time you charge. This creates a slightly cleaner look on the wall and gives you flexibility if you change cars in the future.

If convenience matters most, tethered is usually the better choice.
If aesthetics and flexibility are higher priorities, untethered may suit you better.

For most domestic properties, tethered wins on practicality.

What is a smart EV charger?

Nearly all modern home chargers are now “smart.”

That simply means they connect to your Wi-Fi and can be controlled via a mobile app. With a smart charger, you can:

  • Schedule charging during off-peak hours

  • Track your electricity usage

  • Take advantage of EV energy tariffs

  • Integrate with solar panels (on certain models)

One really important thing to keep in mind: where you want to install your charger needs a strong Wi-Fi signal for these features to work properly. If your chosen spot has weak Wi-Fi, don’t worry — you can look for a smart charger that supports an ethernet cable connection to make sure it stays reliably online.

The right charger for you will depend on your electricity tariff, whether you have solar, and where it will be installed — but checking your Wi-Fi signal (or ethernet option) upfront will save headaches later.

How much does a home EV charger cost?

For most UK homes, a typical home charger installation costs £900–£1,700.

This usually includes:

  • The charger itself

  • Standard installation

  • Safety certification

Costs can go up if:

  • The charger is far from your consumer unit

  • Groundworks are needed (like digging under a driveway)

  • Your home’s fuse capacity is low

  • Your consumer unit needs upgrading

Buying your own charger can often save money compared with dealer packages — and it gives you more choice over the model, features, and where it goes.

Every home is different, so a proper survey is important before confirming the final price.

The main thing to remember: this is permanent electrical work, so it’s worth doing safely and properly, even if it costs a little more.

When should you speak to an installer?

Ideally, as soon as you order your car — not when it arrives.

Installers are often booked several weeks in advance, and some properties require minor upgrades before installation can take place. Getting organised early ensures your charger is ready when your vehicle is delivered.

A qualified installer will:

  • Check your main fuse rating

  • Assess your overall electrical load

  • Inspect your consumer unit

  • Confirm earthing arrangements

  • Plan the safest cable route

  • Provide certification once complete

What is the DNO — and do you need to contact them?

This is one area that often confuses new EV owners.

DNO stands for Distribution Network Operator.

In simple terms, the DNO is the company responsible for managing the electricity cables and infrastructure in your local area. They ensure homes and businesses have enough capacity on the network to safely draw power.

They are not your electricity supplier.
Your supplier bills you.
The DNO manages the physical electricity network itself.

When you install a home EV charger, you’re adding a significant electrical load to your property. In most modern homes, this is not an issue.

However, if your property has a lower-capacity main fuse (for example, 60 amps instead of 80 or 100 amps), or if your electrical supply is already heavily used, the DNO may need to review or approve the installation.

The important thing to understand is this:

You do not normally need to contact the DNO yourself.

A professional installer will check your supply, notify the DNO where required, and manage the process on your behalf. For most standard UK homes, this is a routine, behind-the-scenes step.

Is it better to choose your own charger?

Many car dealerships offer bundled charger packages when you buy your vehicle. While convenient, this can limit your options.

Choosing your own charger allows you to:

  • Match it to your energy tariff

  • Position it exactly where it works best

  • Select features that suit your home

  • Choose a trusted local installer

It’s also worth remembering that your charger remains with the house, even if you change cars in the future.

For that reason, many homeowners prefer making their own informed decision.

The key takeaways

If you strip away the technical language, buying a home EV charger is much simpler than it first appears.

For most UK homeowners, it comes down to a few straightforward decisions:

  • A standard 7kW smart charger will suit your property.

  • Tethered units are usually the most convenient for everyday use.

  • Installation typically costs between £900 and £1,700 depending on your setup.

  • A qualified installer will handle safety checks, certification, and any DNO notifications for you.

You don’t need to understand electrical engineering.
You don’t need to contact the DNO yourself.

Once installed, charging quickly becomes routine. You’ll come home, plug in, and wake up to a fully charged car — ready for the day ahead. No petrol stations. No queues. No fuss.

Start shopping for your Home EV charger