Your simple guide to smart meter installation time in the UK

Your simple guide to smart meter installation time in the UK
Published on 4 Apr 2026

Understanding how long a smart meter installation takes can help you plan your day and avoid surprises. This guide explains typical installation times, what affects them, and what to expect so the process runs smoothly.

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A quick checklist for smart meter installation time

How long does smart meter installation take?

Most smart meter installations in the UK take around 1 to 2 hours but can vary depending on your setup. A single meter installation (either electricity or gas) can take an hour, whereas installing both usually takes around 2 hours.

What affects installation time?

The exact duration can vary depending on your property and meter setup.

Factors include:

In most cases, the process remains straightforward and is completed within a couple of hours.

What to expect on installation day

A qualified engineer will visit your home to replace your existing meter with a smart meter; at Fuse Energy, we only install the latest SMETS2 model of smart meters. Your supply will be temporarily turned off while the meter is replaced. Once installed, the engineer will test the meter and ensure it is connected correctly.

Is smart meter installation free?

Yes. Smart meter installation is free for most UK households as part of the national rollout. You will not be charged for the meter or the installation.

What to do before installation

Before your appointment, make sure your meters are easily accessible and that someone over 18 is present during the installation. Preparing in advance helps ensure the process is completed quickly and without delays.

Tariff eligibility

A connected smart meter allows access to advanced tariffs. EV tariffs and time-of-use tariffs rely on real-time usage data, so your meter must be online to access them. If you do not yet have a smart meter, you can switch to Fuse Energy first and then request a free upgrade.

What if you have an older teleswitch meter?

If you have an older meter such as a radio teleswitch (RTS) meter, you may need to upgrade to a smart meter to avoid disruption and access modern tariffs. Fuse Energy can guide you through this upgrade after switching.

Why Fuse Energy may be the better option

Managing your energy shouldn’t feel like a hassle. With Fuse Energy, you get real-time, half-hourly usage data in the app and website if you have a connected smart meter, helping you stay in control of your energy usage. Our 24/7 human support team is always on hand with fast response times of under 5 minutes whenever you need help. Click here to switch to Fuse Energy in as little as 3 minutes and find out about our mission by clicking here.

Frequently asked questions

How long does it take to install a smart meter?

Most installations take between 1 to 2 hours, depending on your setup.

Will my power be turned off?

Yes, but only briefly while the electricity meter is replaced.

Do I need to be home?

Yes. Someone over 18 must be present during the installation.

How can I switch to Fuse Energy?

Switching to Fuse Energy is simple and can be done in as little as 3 minutes by completing the online onboarding process here.

Disclaimer

For the avoidance of doubt, this article is provided for informational purposes only and is not intended to constitute legal or financial advice. The author and/or Fuse Energy shall not be responsible for any losses arising out of any reliance on the information contained herein.

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