Already an npower customer?

If you're already an npower Business customer, call

‍0845 075 0430

If we recently let you know that we’ve moved your account to our new billing system, the number is 0800 980 5505.

Lines are open Monday to Thursday from 8:30am to 5:30pm, Friday from 8:30am to 5:00pm. View call charges

Please have the following information to hand:

  • Your company name
  • Site address
  • Date of occupancy change
  • Meter readings (if available)

If you’re leaving a site we supply, please also tell us:

  • Your forwarding address and phone number
  • New occupier details (if known) or landlord’s name, address and phone number

Meter readings

It’s important to note down your final meter readings on the day you leave your old business premises - it’s so we can make sure your final bill is accurate.

Usually we’ll complete our change of occupier processes within about 3 weeks.

We may ask you for more information to help us confirm the change. Please don’t be offended if we do, it may be needed to help us close the previous occupier’s account. We just want to be sure all our customers pay the right amount for the energy they’ve used.

New to npower

If you’re joining npower Business as a new customer, call

0800 980 5505

Lines are open Monday to Thursday from 8:30am to 5:30pm, Friday from 8:30am to 5:00pm. View call charges

Please have the following information to hand:

  • Your company name
  • Site address
  • Date of occupancy change
  • Meter readings (if available)

If you’re moving into a site we already supply, please also tell us

  • Forwarding address of previous occupier (if available)

Usually we’ll complete our change of occupier processes within about 3 weeks.

We may ask you for more information to help us confirm the change. Please don’t be offended if we do, it may be needed to help us close the previous occupier’s account. We just want to be sure all our customers pay the right amount for the energy they’ve used.

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