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What to do in case of abnormal increase of its water bill?

Verified 10 novembre 2020 - Directorate for Legal and Administrative Information (Prime Minister)

When the water service notices an abnormal increase in your water consumption, it must inform you as soon as possible by any means (in practice by mail) and at the latest when sending your water bill.

  FYI : the increase is abnormal as your consumption exceeds double the average volume consumed in the last 3 years. This abnormal consumption can cause a water leak.

Without water service information, you do not have to pay the excess of your water bill.

The situation differs depending on whether or not you have detected a water leak.

You've detected a water leak

You do not have to pay the excess of your average consumption if you present to your water service a certificate indicating that a plumbing company has repaired the leak.

This certificate must specify the location of the leak and its date of repair.

The certificate must be sent by registered letter with notice of receipt within 1 month from the notification water service showing you the increase in your consumption.

Your certificate must be accompanied by a request to cap your water bill.

Request a cap on your water bill following a water leak

National Institute of Consumer Affairs (INC)

You haven't detected anything

You can ask the water service to check the correct operation of your meter.

Your request must be sent by registered letter with notice of receipt within 1 month from notification water service showing you the increase in your consumption.

Your water service must notify you of its response within 1 month of conducting an investigation.

If a meter malfunction is detected, you will not have to pay the excess of your water bill.

However, if the water service notifies you that the increase is not due to a malfunction of your meter, the verification fee will be charged to you. You will also have to pay your entire water bill.