Water and sewers

We supply high-quality drinking water to more than one million residents in the Helsinki metropolitan area. We effectively treat the wastewater from city residents and industry as well as build and renovate the water supply and sewer network.

Water and sewers

We supply high-quality drinking water to more than one million residents in the Helsinki metropolitan area. We effectively treat the wastewater from city residents and industry as well as build and renovate the water supply and sewer network.

Problems with the water, water supply or water meter

The reliability of the water supply network in the Helsinki metropolitan area is very good. Sometimes, however, we have to cut off the water supply due to either sudden disturbances or planned maintenance work. See below for instructions on what to do in the event of various disturbances.

Water supply disturbances
5/24/2024 09:00:00

Water supply cut Siltasaari Helsinki 30/5/2024

5/24/2024 08:00:00

Water supply cut Lansa Espoo 30.5.2024

5/24/2024 07:32:35

Espoo, open, 24.5.2024 at 08:48

5/23/2024 08:00:00

Water supply cut Alppiharju in Helsinki 30/05/2024

5/23/2024 08:00:00

Water supply cut in Pakila Helsinki 29/05/2024

Water-related matters for people moving

Have you bought or sold a house in the Helsinki Metropolitan Area? Will you be taking on a tenant in a house you own? File a change of ownership notice or order a tenant user agreement for your tenant.

Water-related matters for builders

A construction project involves many phases and partners. Please note that you should allow enough time to connect to the water supply networks. All in all, the connection process may take up to six months.

Water rates

Water rates enable the supply of high-quality drinking water to the more than one million residents of the Helsinki metropolitan area, and the efficient treatment of wastewater to protect the Baltic Sea. We cover all the costs of water services with the rates charged for water and connection to the network. 

Reasonable water and sewer use

The household water in the Helsinki metropolitan area is soft, which means that its lime content is low. This is why less detergent can be used than with hard water.

More than 40% of the water used in households goes to washing. Additionally, flushing the toilet, dining and laundry make up a significant part of the daily water consumption.

Do you know the sewer etiquette? Use the sewer and toilet bowl only for their intended purpose. Sort waste into the correct waste containers.​​​​

How the water supply works

When you open the tap, you are at the same time opening a path for water from our water treatment plants to you through the water pipes. Once you have used the water, it ends up at our wastewater treatment plants through the sewers. To ensure the water’s path, we are continuously building and maintaining our water networks. This allows us to secure uninterrupted water supply services for more than one million residents.

Our ongoing projects