ZENNER is your partner for complete billing services. With our operational do-how we provide end-to-end solutions for your utility billing requirements starting from the hardware supply and installation to system operation and conversion of recorded consumption values into cash.

In times of high service charges and energy prices, apartment owners and tenants pay close attention to the so-called "second rent". They expect a fair and transparent cooling billing.

Landlords and property managers want to allocate the incurred cooling costs of their buildings smoothly and with no disputes. Ontime billing and collection must be error free with no hassle of delays. Efficient credit control procedures and tools insure full transparency.

When it comes to utility billing, we leave nothing to chance. All processes at ZENNER, from the production of the measuring device to the reading and billing services, are certified according to DIN EN ISO 9001 and are checked regularly.

Regardless of the form of billing services, with or without cash collection, the original document will be archived and is made available in our dedicated portal myzenner. We offer various payment channels, such as bank transfer, cash or cheque deposit or hassle-free with via credit or debit card online.

Metering System Asset Management

  • Consultancy and technical support
  • Rectification and upgrade of existing metering systems
  • PPM and reactive maintenance

Reading and Billing Services

  • Monthly and daily reading services
  • Onsite and remote reading
  • Comprehensive billing with or without collection services
  • Complete financial monitoring for cooling charges

Financial services

  • Meter rental services
  • Deferred payment plans

Retrofitting of existing buildings

  • Design and execute complete retrofit
  • Replace and upgrade installed meters and communication

Customer Care

  • Our Z customer care team is available for all billing and payment related queries and is glad to assist
  • The customer portal myzenner is accessible around the clock where the bills can be viewed and paid online.


  • Our advanced software allows you to effectively undertake comprehensive billing using your own customer care team.
  • We automate many of the labour-intensive processes and provide added-value services, including online customer portals.