What's more, at our Online Office, you can take care of the most common transactions related to your gas and electricity contracts, 24 hours a day, 365 days a year.

You can also lodge complaints or make suggestions and enquiries. In order to do so, you must be registered.

Register with the Online Office

If you have any questions about Online Office, call us on 902 52 58 52

Every day of the year at any time you can request any information you need or perform any operation you'd like. It's that simple. It's that effective.

902 502 040

You can consult us and contract free market electricity and gas rates 24 hours a day.

You'll also get expert advice about air-conditioning equipment and hot water units (service available from 9.00 am to 9.00 pm)

A team of experts will attend to your enquiries about energy consumption and the equipment in your home

902 508 850

(Service available from Monday to Friday from 9.00 am to 9.00 pm)

The distributor in each area is responsible for the quality of electricity supply. Therefore, when faced with any malfunction or incident, you should contact the distributor directly:

If you are an Endesa customer and you wish to present a complaint related to your contracts, invoices or the sales attention you received you may do so via:

• www.endesaonline.com: To do so, you need to register at the Online Office. You can send us your queries, suggestions and complaints from this office's customer service menu. You will automatically receive a complaint identification number, you can print out the text of your complaint and you will receive a first response within 48 hours.
• Customer service: If you prefer to report your complaint by telephone, you may do so by calling the different Sales Attention telephone numbers which you will find in this section. These telephone numbers also offer a service to individuals who are not Endesa customers because their contract has expired.
• Sales Offices and Service Points: and lastly, if you wish to present your complaint in person, you may do so in our offices and service points.

If you have already made a formal complaint and you do not agree with its resolution or a period of more than 2 months has elapsed since you sent your complaint and you have not yet received a response, please go to www.defensordelcliente.endesa.es
We remind you that your complaint may only be handled, in the second instance, by the Customer Ombudsman, if you have already presented your complaint to the company's Customer Service department.