Customer service
Whether you are already a customer or would like to become one as well as for any questions about our contracts and our offers, here is how you can reach us:
(+352) 55 66 55 1
frontoffice@sudenergie.lu
Opening hours:
Monday to Friday from 8.00 am to 12 pm and from 1.30 pm to 5 pm
Hotline for gas emergencies
If you smell gas or detect a leak, please call our emergency service available 24/7
