Switch gas

How to switch business gas supplier

A well-managed switch begins with the existing contract and ends after the first new invoice is checked.

Last reviewed 18 September 2026

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Key answer

Confirm the contract end and notice terms first

Read the current agreement, give notice correctly, gather the MPRN and consumption data, compare written offers and retain the accepted terms. Supply meter readings around the change and check the final and opening bills.

Operations team reviewing business energy service and renewal records, relevant to how to switch business gas supplier
Reliable account records make supplier reviews and renewals easier.

The switching sequence

Do not assume that a quote request or new contract automatically satisfies the old supplier's termination process. Keep evidence of any notice and verify the intended change date.

If the premises is changing hands, use the supplier's change-of-tenancy process and record readings. A new occupier may otherwise remain on deemed terms while account details are resolved.

  • Confirm end date and termination process
  • Gather MPRN, bill and annual consumption
  • Compare offers using the same assumptions
  • Record the accepted contract
  • Check closing and opening meter readings
Business energy customer-service adviser helping a company owner, relevant to how to switch business gas supplier
Service access and account support matter after a business energy contract begins.
Business owners reviewing supplier paperwork and an energy bill, relevant to how to switch business gas supplier
Check the contracting entity, supply details and total costs before deciding.

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Next step

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