ista is the specialist in measuring and billing energy consumption in buildings with block heating. We do this on behalf of your property manager. Find the information you are looking for here.
We measure the heat and water consumption of all residents in a building with block heating and distribute the total energy costs fairly among all residents.
Consumption-based billing with ista optimises and automates the process of heating cost billing and provides residents with an accurate and easy to understand billing.
Save time and money with remote metering and transparent water billing solutions.
All annual service charges from the property manager can also be included on the heating and/or water statement that ista prepares for you. This gives residents a complete and accurate overview of all costs.

You can find all your energy data in one place in the resident portal and My ista app. This gives you a clear overview of your consumption and shows you where you can save money.
ista helps make buildings sustainable for residents and owners. We manage data and ensure processes run smoothly, so that buildings are environmentally friendly, safe and pleasant to live in.
Check out these tips to help you reduce your energy consumption even further. How to save heat and water!
By managing 44 systems with istaDES, Wonen Limburg is able to control performance, malfunctions and costs, and improve comfort and energy efficiency in a sustainable manner.
The Cash and Support page assists anyone seeking a quick answer.
Explanation of Radiator Meter Billing (dutch)
PDF - 421 KB
Calculation of final settlement costs (dutch)
PDF - 160 KB
This is how the radiator meter works (dutch)
PDF - 167 KB
View all documents in the download section.
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We are an international company headquartered in Germany and one of the leading providers of energy consumption recording and billing in buildings. Our goal: to make energy transparent by optimising and digitising buildings in more than 20 countries – future-proof and sustainable.
We make buildings sustainable and retain their value. We do this by managing data and processes that make buildings climate-friendly, safe and comfortable. Worldwide, more than 43 million devices are already connected to our solutions for the energy-efficient buildings of tomorrow.
Our data-driven products and services provide residents with insight into their energy consumption, enabling them to save energy, reduce costs and cut CO₂ emissions. In this way, we increase energy efficiency and the value of the property.
We rely on the latest and proven technologies – both wireless and wired – to guarantee accurate measurement results. Our solutions are state-of-the-art, reliable and ensure secure data transfer.
With over 65 years of experience, we combine tradition with modern expertise – for forward-looking solutions in building management.