If your concern is regarding the service you have received from First Gas please contact 0800 FIRST GAS
First Gas is a member of the Electricity and Gas Complaints Commissioner Scheme.
Once we receive your formal complaint or dispute, we have 20 working days to find out what went wrong and try to fix the problem. First Gas may notify complainants in writing that it could take up to 40 working days to resolve a complaint, where a good reason exists. If after this period we have not reached an acceptable solution, you may decide to take the complaint to Utilities Disputes Ltd. This is a free and independent service.
The Commissioner can be contacted at: