Determine the water hardness on site

Here you can determine the water hardness in your municipality.

Please enter your postal code or the name of your place of residence.

Search by postal code or city/town.

To determine the exact water hardness in your household, you can use our test kit. It is also possible to send your groundwater sample to a laboratory for a detailed analysis.

Test now

Distribution of water hardness in Swiss groundwater

Wasserhaerte-ermitteln-Karte-Kalk-Grundwasser-Schweiz

(Local hardness levels may vary significantly)

10 to 15 soft

Target value after installing a water softening system:

Excellent result! Significantly extends the lifespan of household and kitchen appliances. Greatly reduces cleaning effort — allowing you to achieve a clean and shiny result quickly and easily.

15 to 25 hard

The lifespan of household and kitchen appliances decreases. Limescale deposits become visible after just a few days.

>25 very hard

Cleaning effort increases significantly. Without the use of strong cleaning agents, it becomes nearly impossible to remove the resulting limescale deposits.

Contact us

Do you have questions or would you like expert advice about your water softening system in Switzerland?
Get in touch with us — no obligation. If you wish, we’ll also be happy to provide a free consultation at your home.

Phone 062 955 70 28

We are happy to provide you with further information.
Nationwide service across Switzerland. Certified specialist company for the installation of water softening systems.

Schedule an appointment with a Swisskalk consultant today and enjoy expert advice in our showroom.

Note: Visits by phone appointment only.

Location
Midland Region:

Swisskalk GmbH
Brunnackerweg 4
4553 Subingen
062 955 70 28

Location
Zurich Region:

Swisskalk GmbH
Stettbachstrasse 6
8600 Dübendorf
043 500 02 82

Location
Western Switzerland Region:

Swisskalk Sàrl
Rue du Rhône 14
1204 Geneva
022 533 07 90