Water services customer service offices and plants

​​​​​​​​​​Water servi​​​ces customer service points are open Monday to Friday at 8.30 a.m. to 3.30 p.m.

You can reach Connection matters by phone from Monday to Friday at 8.30 a.m. to 1.00 p.m., tel. +358 (0)9 1561 2110.​

Attention! We will centralize our water supply customer service points in Helsinki Pasila, Espoo Mikkelänkallio and Vantaa Hosantie to our new headquarters in Ilmalantori 1. The Water services connection matters move to Ilmala on the 22.1.2018, the Espoo and Vantaa service points during the following week.

Other HSY personnel from East Pasila will also move to the new headquarters in Ilmala by the end of January. This change is not expected to interfere with HSY's customer or other services, and the service is expected to run smoothly also during the move. Concerning the Water services connection matters, there might be a delay of a couple of days in answering to callbacks.

Water services customer service office in Espoo

Mikkelänkallio 11, 02770 Espoo.
Attention! We are moving to Ilmala in January. Our new address is Ilmalantori 1, 00240 Helsinki, mailing address P.O. Box 100, 00066 HSY.

Water cervices customer service office in Helsinki

Asemapäällikönkatu 7 / Opastinsilta 8, 00520 Helsinki​
Attention! We are moving to Ilmala in January. Our new address is Ilmalantori 1, 00240 Helsinki, mailing address P.O. Box 100, 00066 HSY.

Water services customer service office in Vantaa

Hosantie 5, 01360 Vantaa
Attention! We are moving to Ilmala in January. Our new address is Ilmalantori 1, 00240 Helsinki, mailing address P.O. Box 100, 00066 HSY.

HSY's water treatment plants and waste water plants

We don't have customer service at out plants.

Pitkäkoski water treatment plant

Kuninkaantammentie 17, 00430 Helsinki

Vanhakaupunki water treatment plant

Jokiniementie 1,  00650 Helsinki

Suomenoja waste water plant

Hyljeluodontie 5, 02270 Espoo
Please note! Since 11.07.2016 driving route to the wastewater treatment plant via Hylkeenpyytäjäntie.

Viikinmäki waste water plant

Hernepellontie 24, 00710 Helsinki