Change of Tenancy Energy Helper Tool

How do I switch providers for new business premises?

If you have just moved into new premises it is important to notify your business energy company. When moving into or out of a premise, the existing supplier to the premise will continue to supply energy at a deemed rate until explicitly requested not to. The new tenant is obligated to agree on a new contract either with the same supplier or with a new supplier of their choosing. This is known as Change of Tenancy.

For your convenience we have created a simple Change of Tenancy Form created that you can fill out and send to the energy company together with supporting documents. Below you will find:

  • Our Change of Tenancy Form.
  • A checklist of what to include before you send the letter.
  • A list of energy companies' addresses. You can find contact details for energy companies here

Changing energy providers for a new business premises in three easy step:

1. Inform the current energy company that you are the new business premises occupier. 

Send a Change of Tenancy Form with the following attachments:

  • Meter reading photo from the date you occupied the new premises
  • Find your current energy supplier (you can find this out from Energy Distribution Network)
  • Print a Change of Tenancy Form
  • Print a copy of one of the following:
    • Landlord’s confirmation
    • Estate agent’s confirmation
    • Solicitor’s confirmation AND
  • Print copy of the lease, freehold OR mortgage completion letter if the property was purchased

2. Shop around for the best rates

Go to to find the lowest business gas and electricity prices. We can find quotes for most business premises in less than 20 seconds and you can switch in less than 60 seconds.

3. Switch

It takes less than sixty seconds to switch on When you find the best deal for your business, just click Switch Now and answer a few questions. You sign all the documents online. Energy companies take up to 30 days to switch your business. We are here to make the process simple and straightforward. To read more about the business energy switching process please click here.

British Gas Business Ltd.                 

FTAO Terminations Team                

British Gas Business         

Spinneyside Offices          

Penman Way, Grove Park               

Leicester, LE19 1SZ

Contract Natural Gas Ltd.              


CNG House          

5 Victoria Avenue, Harrogate, North Yorkshire     


Corona Energy   

Terminations Department                               

Edward Hyde Building    

38 Clarendon Road                            

Watford, WD17 1JW

Crown Gas & Power                         

The Oil Centre

Bury New Road

Heap Bridge                   

Bury, BL9 7HY

Dual Energy  

FTAO Price Review   

Termination Department    

Premium House       

The Esplanade                     

Worthing, BN11 2BJ


FAO Business Team             

Unicorn House          

7 Russell Street                    

Stroud, GL5 3AX

EDF Energy   

SME Sales Team                   


Osprey House           

Osprey Road 

Exeter, EX2 7WN


Business Customer Service             

PO Box 2010                        

Nottingham, NG1 9GQ

Gazprom Energy      

FTAO Customer Services                 


27 Quay Street                     

Manchester, M3 3GY

GDF SUEZ Energy UK                                  

No1 Leeds     

26 Whitehall Road               

Leeds, LS12 1BE

Good Energy                         

Monkton Reach        

Monkton Hill             

Chippenham, Wiltshire, SN15 1EE

Haven Power Ltd.                             

32 The Havens         

Ransomes Europark            

Ipswich, IP3 9SJ

Hudson Energy                                

Elder House 3rd Floor,

586-592 Elder Gate

Central Milton Keynes, MK9 1LR, UK

LoCO2 Energy Ltd (Solarplicity)                            

1st Floor        

Batchworth Lock House       

99 Church Street     

Rickmansworth, Hertfordshire, WD3 1JJ

(NPower are to merge with EON. Read about it here.)


The Correspondence Team            

Bridge House 200 Clough Road                 

Hull, HU5 1SN

Opus Energy Ltd      


Royal Pavilion           

2 Summerhouse Road         

Moulton Park Northampton, NN3 6BJ

Ovo Energy                           

The Core       

40 St. Thomas                       

Bristol, BS1 6JX

Regent Gas Ltd                                 

House Kendal Avenue                     

London, W3 0XA

Scottish Power          

SME Contracts Manager      

Business Sales          

Section 11, Zone 23 

Cathcart Business Park       

Spean Street 

Glasgow, G44 4GP

Smartest Energy                              

Grafton House          

15-17 Russell Road              

Ipswich, Suffolk, IP1 2DE

Scottish & Southern Energy

PO Box 6302



RG21 8WR

Total Gas & Power                            

Bridge Gate   

55-57 High Street                

Redhill, Surrey, RH1 1RX

Yü Energy

Unit 2, Horizon Place,

Mellors Way,

Nottingham, NG8 6PY”