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We handle everything – from management and customer contact to technical and financial processes – so you can focus on your core activities.
Organizations often face significant challenges in managing and maintaining the performance of collective or sustainable energy systems. These challenges arise from a lack of internal technical, financial, or administrative capacity, the increasing complexity of energy infrastructure and regulations, and the constant need to balance efficiency with satisfaction. Without specialized expertise, systems can become inefficient, costly, and unreliable, leading to financial risks and frequent complaints.
Professional management through istaDES combines all crucial tasks into one comprehensive service. From technical and financial management to contract administration, advance billing, settlements, customer contact, and smart consumption monitoring, this integrated approach enhances performance, reduces costs, extends system lifespan, and increases transparency. For property managers, this means greater efficiency and compliance assurance, while residents benefit from convenience and reliable service.
Contact us, and our specialists will be happy to advise you on the best solution for your buildings.
istaDES collaborates with an independent heat supplier for the B2C model. For the B2B model, via an ESCO, ista partners with reputable companies. This provides flexibility in choosing how to bill your residents for heat consumption, in accordance with rental law or the Heat Act. In consultation with you, the heat supplier, and ista, the annual heat rates are determined. This ensures residents do not overpay and gives you the opportunity to invest in sustainability measures.
The services we provide to housing corporations and property managers relieve you of the operational burden of sustainable heating systems. This allows you to focus on your core activity: renting out properties. By combining our services with collaboration with the heat supplier, we stand out from other heating companies. Our expertise lies in the technical and financial management of the heating system and in ensuring the correct allocation of operational costs between the housing corporation and residents.
The istaDES service is built and developed based on the needs and demands of the market. Over the past years, much has changed. The types of installations are evolving, metering systems are becoming smarter, and data collection is increasingly important. Climate protection and related measures are playing a growing role. All of these factors mean that our market segment—and especially our clients—now demand higher standards of quality and service across the board.
istaDES supports and relieves you in all aspects of heat management through specialized expertise in increasingly complex installations. From technical management to improving financial performance, and from customer service to the legal aspects of collective energy systems, we provide comprehensive support.
The technical management of your (sustainable) energy system is in good hands with istaDES. Whether it involves assessing and monitoring energy performance (using the ReduQ energy monitoring tool), preventive maintenance, or handling faults, we work closely with your installer to map your energy system thoroughly and determine its technical efficiency.
We also provide a long-term perspective on maintaining your energy system. Your installer handles complaints and faults, while istaDES continuously oversees the process. The technical manager from istaDES acts as a full partner for the installer. Technical performance is periodically reviewed and discussed with the client, and advice is provided to improve the system’s technical efficiency.
We handle all contractual matters for energy consumers, ensuring agreements are clear, fair, and sustainable.
istaDES also handles cash management for you, from collecting advance payments from residents and paying the energy supplier to settling accounts with your residents.
Through the ReduQ energy monitoring tool, you gain full insight into your energy system’s performance. Your residents have access to the Mijn.ista monitoring tool to track their energy consumption.
For questions, complaints, or faults, we respond to your residents quickly and professionally, providing personal attention and ensuring their concerns are taken seriously.
Before managing the collective system, istaDES determines its status through data import. The (collective) system must meet certain criteria before management can be taken over. After completing the data import phase, you will receive an import report for each location.
Any defects or deficiencies identified during the data import must be addressed. The supervision and execution of this cleanup are managed by istaDES.
After completing phases 1 and 2, the management phase begins. During this phase, the financial and technical performance of the energy system is assessed. If performance is insufficient, istaDES provides advice on potential improvements to enhance system efficiency.
For complete insight into your energy system’s performance and optimal alignment of heat supply with demand. The tool that can deliver significant energy savings.
As an independent service provider, we manage the operation and sustainable maintenance of your energy system in collaboration with various heat suppliers and maintenance partners.
Heat Company provides sustainable and environmentally friendly heat, contributing to a greener future for the Netherlands.
Warmtelevering Wonen Limburg is the heat supplier for the housing corporation Wonen Limburg.
Four Energy is an energy supplier of sustainable heating and cooling for consumers and businesses across the Netherlands.
Complete worry-free package – All technical, contractual, and administrative tasks are professionally managed, requiring no additional internal effort.
Greater efficiency & lower costs – Targeted monitoring and professional maintenance reduce operating costs and extend the lifespan of installations.
Satisfied residents – Fast and expert support for questions, complaints, or faults builds trust and enhances living quality.
Complete transparency – Clear reports and structured processes ensure owners and managers always have control over performance and finances.
Future-proof – Management ensures systems always comply with current laws and regulations and are ready for sustainable energy solutions.
Contact us, and our specialists will be happy to advise you on the best solution for your buildings.
QuaWonen relies on ista for smart energy management across 15 complexes – achieving lower costs, fewer faults, and a step toward sustainability.
Elan Wonen entrusts ista with energy management for 17 complexes, gaining greater insight, lower costs, and control over sustainability.
By managing 44 systems with istaDES, Wonen Limburg gains control over performance, faults, and costs, while sustainably improving comfort and energy efficiency.
Professional management of energy systems, such as block and district heating, increases financial returns, provides insight into the Multi-Year Maintenance Plan (MJOP), and ensures resident satisfaction. By fully outsourcing monitoring, customer service, and individual billing, housing corporations and property managers no longer need to oversee the system themselves. This saves costs, improves efficiency, and eliminates the need to constantly invest in specialized knowledge to keep up with changing regulations. As a result, the demand for expert management is growing rapidly.
istaDES has a unique telephone number with a menu option for each customer, which residents can call in the event of malfunctions (24-hour service) and technical questions. Residents are then connected directly to the maintenance provider. We respect every ongoing partnership. Residents can also call this unique number for questions about energy consumption, billing, advance payments and monitoring. These questions are answered by an ista Netherlands employee, who is managed by istaDES. All incoming questions are recorded and discussed with you in a quarterly or annual report. If necessary, and in consultation with you, actions will be taken. We will be happy to discuss with you how we can further tailor our services to your needs.
Providing our customers with complete peace of mind largely involves keeping residents well informed and responding appropriately to their questions. This is reflected in the services provided by istaDES to residents. By outsourcing “Customer Service”, istaDES takes over customer contact from the housing association or property manager.
We are there for you and your residents for all forms of customer communication: from technical questions and questions about rates to general issues and other requests. In this way, we provide clear answers, fast support and a reliable service experience.
istaDES can take care of all contractual matters for energy customers on your behalf, including in situations where you are required to settle accounts in accordance with the Heat Act. This ranges from sending a supply agreement to the new occupant to terminating an agreement with the departing occupant. Any questions from occupants during this process are also answered promptly, professionally and correctly. The client only needs to report when a property changes hands; istaDES takes care of the rest, in collaboration with ista Nederland. Your technical contracts are also in good hands with istaDES, with a clear focus on prevention, inspection and correction.
The technical management of your (sustainable) energy installation is in good hands with istaDES.
Whether it concerns assessing and monitoring energy performance (based on the ReduQ energy monitoring tool), preventive maintenance or malfunctions. Together with your installer, we carefully map out your energy installation and determine its technical efficiency.
In addition, we formulate a long-term perspective on maintaining the energy installation. Your installer handles complaints and malfunctions, with istaDES continuously looking over their shoulder. The technical manager at istaDES is a fully-fledged discussion partner for the installer. The technical efficiency is also periodically mapped out and discussed with the client. Advice is also given on improving the technical performance of the energy installation.
The Technology module focuses on the complete management of your installations. We ensure fast and professional handling of malfunctions and complaints, carry out both corrective and preventive maintenance, and monitor the performance of your systems. In addition, we advise you on optimisation and sustainability, draw up clear management reports, and develop an annual investment plan based on the MJOP (Multi-Year Maintenance Plan). We also take full responsibility for monitoring and implementing the MJOP and planned maintenance, so that your installations continue to function reliably and remain future-proof.
Our tailored solutions are designed to help clients reduce their environmental impact, improve health and safety in their buildings, and save on energy costs.
Smart boiler room monitoring for increased efficiency, early fault detection, and seamless remote management – ensuring reliable heating system performance around the clock.
