Oulu Waterworks Contact Information

Customer Service 

You can reach our customer service via phone, e-mail or with electronic forms and the Vesitili service. 

You may also book an appointment by calling the number 08 558 43800.

Phone service times: 

Customer Service

Contracts, orders, inquiries, malfunction reports: 
asiakaspalvelu.oulunvesi@ouka.fi, tel. 08 558 43800 (Mon-Fri 9.00-13.00, 13.00-16.00 your call will be picked up by Oulu10 customer service) 

Water invoicing 

tel. 08 558 43815 (Mon-Fri 9.00-13.00)

Technical support 

Water and sewage junction design: 
tel. 08 558 43888 (Mon-Fri 9.00-11.30) 

Payment arrangement and terms of payment 

Monetra Oulu Oy: tel 044 703 0731 (Mon-Fri 9.00-16.00) 

Malfunction on-call service 

Reports requiring immediate maintenance outside service hours to: tel. 044 703 3800. 

Staff Contact Information

Pipe data for designers

Other contact information is found from Oulu’s phone directory (in Finnish).

Oulu Waterworks invoicing address 
Oulun kaupunki
Oulun Vesi liikelaitos
EDI ID: 003701876901150
PL 5016

Online invoice information 
Operator: CGI Suomi Oy
Intermediary ID: 003703575029
EDI ID: 003701876901150

Further information about invoicing from the city of Oulu’s invoicing instructions www.ouka.fi/invoicing
Postal address:  PL 35, 90015 Oulun kaupunki
Visiting address: Kasarmintie 29
E-mail: oulunvesi@ouka.fi

Visiting tours 

Visiting tours to purification plants are organized together with Oulu Waterworks production manager or other comparable production foremen. Customer service will help you reach the right people.