Do you have questions about your bill or your meter reading? Talk to our accounting department.


You have a malfunction or problems with your system? Our technical support will help you to fix it asap.


Any other questions? No problem: our administration team will help you to find the right contact person.

Technical support: we are here for you!

Our experts will take care of your concerns.
Free of charge. 365 days a year. Even on public holidays. 24/7.

Click and call now:

+49 800 1322222


Portrait with grey background of Bastian Laschkowski


Portrait with grey background of Stephan Andresen


Portrait with grey background of Bastian Laschkowski

Questions & Answers

Of course!

Free hotline 24/7: Of course, you are welcome to contact us at any time and we will support you with any questions, malfunctions, or other concerns regarding your system. You can reach our service hotline 365 days a year around the clock at: +49 800 3305500.

Personal contact person: We don’t like chatbots. Personal contact is extremely important to us. That’s why—in addition to our 24/7 service hotline—you are also welcome to call our esteemed colleague, Stephan Andresen. You can reach him Monday to Friday between 9.00 am – 5.00 pm. If you are calling from a mobile phone number, only the usual charges of your telephone provider will apply (no extra surcharge from our side).

You are not alone! Please contact our technical support!

In most cases, our customers cannot solve the problem on their own. This is especially true if the entire house is affected. Therefore, please call our technical support and we will discuss with you whether we can solve the problem by telephone or whether we can send you our technicians.

If only your flat is affected by the fault, please contact your building management.

No arbitrary adjustments! Your new budget billing plan is always calculated according to your last consumption.

The budget billing amounts are calculated for each type of service with associated due dates, taking into account the most recently determined consumption and the prices currently valid. Are you expecting a change in your consumption? In this case please contact us so that we can work with you to adjust your budget billing plan accordingly.

Don’t worry—you can rely on us and you will get your money!

In most cases, a delayed credit note is due to the fact that you have not provided us with your bank details.

Our recommendation: SEPA direct debit mandate: Make it easy on yourself and give us the SEPA direct debit mandate. Then we can keep track of your payment dates. We also use your bank details to transfer any credit balance from the annual statement.

Easy transmission of the meter reading!

By e-mail: You want to send us your meter reading? Simply send it to us by e-mail to
The following information is important for us:

Your customer number
Your meter number
Your contract partner