Contact details

Telephone service

Customer service 05 7780 500 weekdays 8–17,
summer Fridays (period 1.6.–31.8.) 8–16
Builder’s services and connection matters 05 7780 510 weekdays 8–16
Switchboard 05 77 801 weekdays 8–16
Fault notifications 05 7780 222 24 h

Email addresses

liittymamyynti@ksoy.fi
yritysmyynti@ksoy.fi
firstname.lastname@ksoy.fi

Service points

Kouvola            Yhdystie 7, P.O. Box 9, 47200 Elimäki Temporarily closed due to coronavirus situation                                    
Kotka Kotkantie 2, P.O. Box 65, 48101 Kotka Temporarily closed due to coronavirus situation