Contact
How can we help?
Form, phone or email — whichever suits. The initial consultation is free of charge, and we usually reply within one working day.
Send us a message.
For trade businesses
Installers, electricians, solar installers and energy consultants will find a dedicated form on the partner page — with the questions that matter for working together.
Where we are.
Vienna headquarters
Diefenbachgasse 35/1, 1150 Vienna
Böheimkirchen development site
Betriebsgebiet Süd, Straße E Objekt 5, 3071 Böheimkirchen
Already running a COR system?
If something isn’t working or you have a question about your system, the easiest way is the COR.app: you can open a ticket there directly. Without the app, email service@cor.energy or call our main line on +43 720 720 300, ideally with the serial number and a photo.
Your system can report faults to COR Service automatically.