Moving business premises – change of tenancy (COT)

What do I need to do when I’ve just moved into a new business premises?

First, find out who currently supplies energy to your new property.

• If British Gas already supplies the premises: You will automatically be placed on default, variable "Deemed Rates," which are typically our most expensive. To protect your business from price increases, you should get a quote as soon as possible to set up a lower Fixed Price Plan.
• If you are not with British Gas yet: You can still secure a competitive rate tailored to your needs. Contact our specialist team to discuss your options and get a quote to start saving.

Ready to set up your energy? Get a quote online today.

What information do I need to set up energy at my new business premises?

To make your setup as fast as possible, please have the following information ready before contacting our team:

• Opening meter reading
• Move in date
• Your business details
• Proof of occupancy

Why do I need to send in proof of tenancy documents?

We ask for proof of tenancy documents just to make sure we’re putting the account in the right person’s name they can help us confirm:

• You’re the correct person responsible for the property
• Your move‑in date is accurate, so your bills are correct
• We close or update the previous account properly, avoiding mistakes or disputes

We only need documents so we can make the change smoothly and protect you from any incorrect charges. Once the checks are done, we can update your account.

Proof of tenancy helps protect both you and us from:

• Identity fraud
• Unauthorised tenancy claims
• Incorrect billing or service setup

How do I find out who supplies energy to my new business premises?

Before you call us, it’s important to know which energy company is currently supplying your property.

• Ask the landlord or the previous owner/tenant.
• Look for a letter: Check for a recent bill left by the previous tenant
• Find my supplier: If you’re still unsure, you can use the Energy Networks Association (ENA) website to find the network operator for your area. And then you can contact your energy network operator to find your supplier.

How do I find my supplier using the Energy networks association?

If you’re unsure who supplies your property, follow these steps:

• Enter your postcode on the Energy Networks Association (ENA) website to find your local network operator.
• Visit the network operator’s website or contact them directly.
• Ask them which energy supplier is registered for your property.

In some cases, the network operator’s website may also provide an online tool that allows you to check your supplier online.

Why do you need my name on the account if I may not stay with British Gas?

We need the account in your name to confirm who is legally responsible for the energy supply. This ensures accurate billing and makes any future switch smoother.

What happens next:

• Deemed contract: If you move into a property we supply without agreeing a contract, you’ll be placed on variable deemed rates, which are usually higher than fixed-term prices.
• Fixed-price options: We can offer a fixed-price contract with lower rates and price certainty for an agreed period.
• Switching suppliers: You’re free to switch - just give 30 days’ notice and make sure any outstanding balance is paid.

I am a residential customer moving into a business supplied premise. What do I need to do?

If you’ve moved into a property that’s currently set up on business energy rates, please contact us. so we can update the account to residential.

Once we’ve received your request, it typically takes around 5 days to complete the change.

What do I need to do when I'm moving out of my business premises?

The quickest way to manage your move is through your online account by following these three steps:

• Log in: Access your online account. (Note: If you do not have an online account, you will need to contact customer support to process your move).
• Select your account: Navigate to your dashboard and choose the specific Gas or Electricity account you want to move. Look for the 'Moving premises?' link located on the site address tile and click it.
• Submit your details: Fill out the form provided. You will need to provide your move-out date as well as the contact details for the new occupier, owner, or landlord.

Once you submit this information, the move will be processed on your behalf, and a final bill will be generated.

What information do I need to initiate the move out process for my business premises?

Before starting the online process, please ensure you have the following details to hand to help process your move quickly:

• Confirmed move-out date
• Final meter reading
• New occupier details
• Forwarding address
• Supporting Documents

How long does it take for my business move out process to be processed?

It takes us around 10 working days to change your billing and supply details to your new address.

If you've been waiting for over 10 working days, contact us.

I am not responsible for the meter but I am receiving invoices in my name?

To put this right, we just need you to contact us and provide documentation that confirms who is responsible for the premises . Once we receive this, we’ll update the account, stop any further bills, and arrange for any incorrect invoices to be reversed.

Are there any penalties or charges for moving business premises?

No, there are no penalties or hidden fees applied during the moving process in the following scenarios:

• Moving out: There is no penalty for moving out of a business premises that is currently supplied by British Gas.
• Moving in: There are no charges for moving into a new business premises that is already supplied by British Gas.
• Switching suppliers: If you are moving and choosing to switch to British Gas from a different energy supplier, we do not charge any fees for you to join us.

What if I'm in credit and need a refund?

If your account is found to be in credit once your final bill has been calculated, we will process your refund.

Read more about our refund process here.