ista Restart: Complete metering, reading and maintenance, all in one package.
Staying compliant with legal requirements and resolving billing disputes can be time-consuming. Stay compliant and reduce your workload with ista Restart. ista manages the entire process for you, including cost allocation, meter reading and maintenance for any device, any brand and any building.
One service, many advantages.
Compatibility with devices from other brands
Modular service
Full-service and maintenance options
From readings to maintenance, all managed for you.
Not happy with the way heat and hot water consumption and costs are currently allocated in your condominium? Then ista has the perfect solution for you.
ista Restart is a modular, turnkey solution that can be tailored to your requirements. Our expert service for cost allocation, meter reading and maintenance is specially designed for condominiums that use devices from different brands. Our goal is to simplify your work, ensure fair billing for residents and guarantee the optimal performance of all devices.
You can choose the level of service you need, ranging from basic cost allocation to comprehensive management and maintenance.
Reliable, professional and modular: A service that works for everyone and every building.
Condominium administrators
ista Restart handles readings, allocation, and maintenance across different device brands, freeing up precious time and ensuring full compliance and fewer complaints.
Landlords & property owners
Simplify cost allocation in multi-tenant buildings and ensure every unit is billed transparently, no matter which devices are installed.
Residents
Receive clear, accurate bills that reflect real consumption. Fair, transparent, and compliant with Italian regulations.
Housing Cooperatives
Streamline operations across multiple properties with a single, modular service for metering, reading, and maintenance. All backed by ista’s technical expertise.
Our promise: the right partner makes your work easier.
Ok. But how does it really work?
ista Restart is ista’s comprehensive cost allocation service, compatible with devices from any brand. Our experts handle the entire process, from data collection and consumption analysis to precise cost allocation and ongoing maintenance.
Consumption data is collected directly from your existing meters and processed through ista’s secure systems to guarantee accuracy, transparency and compliance. This means that you can start managing billing immediately without replacing devices, while retaining the flexibility to gradually upgrade to ista technology at your own pace.
It is fully compliant with D. 102/2014 and D. Lgs. 73/2020, the Ripartiamo service relieves administrators of the technical and legal workload, ensuring accurate readings, fair billing and reduced administrative effort.
Still not sure? Watch our testimonial video to see how ista Restart can simplify condominium management and ensure compliance for every building.
With ista you get professional service and total flexibility.
With over 60 years' experience in energy management, ista is one of Europe's leading providers of metering, reading and billing services. Thanks to our technical expertise, certified systems and in-depth understanding of Italian regulations, we are the trusted partner of thousands of administrators and property owners across the country.
ista Restart offers a unique service: the flexibility to manage devices from any brand while ensuring full compliance and professional accuracy. You decide how far you want to go, from simple cost allocation to complete maintenance and service management.
And while other providers may lock you into their ecosystem, ista gives you total flexibility and dedicated customer support. When the time comes to modernise, you can gradually replace your current devices with ista technology without interrupting your operations or billing cycles.
Build the package that fits your needs.
Whether you need help with allocation, readings, or full maintenance, ista Restart is a modular system that adapts to your building and your schedule.
100% easy
Find your solution with us.
100% digital
Always and everywhere informed.
100% sustainable
We give houses a future.
Reduce time, costs and stress with ista Restart.
A clear process from start to finish.
With ista Restart, every step is straightforward and reliable. Our experts will handle all the details and keep you informed, ensuring that your cost allocation, readings and maintenance run smoothly from day one.
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First, we conduct a technical review of your building and devices, regardless of brand, to confirm compatibility and define the appropriate service level.
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We then agree on a tailored plan together, outlining the timing, responsibilities and selected allocation, reading and maintenance package.
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ista technicians will then install new meters and and cost allocator or check existing devices to ensure they function correctly and meet all regulatory standards.
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Consumption data is then collected, processed and allocated through Ista’s systems to deliver accurate, transparent and compliant results.
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Our customer suervice network provides ongoing maintenance and dedicated support across Italy to keep your system reliable and compliant over time.
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Facts & figures
6,300 employees
20 countries
3.7 mil. t CO₂ emissions avoided
43 mil. radio devices
14 mil. utilisation units
Everything you need to download.
ista Restart brochure
PDF - 821 KB
Frequently asked questions
Yes. ista Restart works with cost allocators and meters from Siemens, Sontex, Qundis, Honeywell and other brands, ensuring precise readings and compliant cost allocation.
It depends on the package you choose. With ista Restart, maintenance can be included as part of a complete service package or added later if needed. When selected, our technicians perform full functional checks to keep every device reliable, accurate, and compliant.
Yes. Depending on the package, ista can manage allocation, reading, and maintenance — or only the specific services you need. The system is fully modular and adapts to your workflow.
No. You can continue using your current meters or upgrade gradually to ista technology whenever you’re ready, without interrupting your billing process.
Yes. ista Restart fully complies with D.Lgs. 102/2014, D.Lgs. 73/2020, and the UNI 10200 technical standard for heat cost allocation.
It’s ideal for condominium administrators, landlords, and housing cooperatives who want a flexible, compliant solution for managing heat and water cost allocation.
You save time, reduce administrative workload, and stay compliant while ensuring transparent, fair billing for residents.
Discover more innovative solutions to transform your property.
Our custom solutions are designed to help our clients reduce their environmental impact, improve health and safety in their buildings, and save energy costs.
Heat cost allocation
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.
ista Aperto
The service that allows you to freely choose who to entrust with the allocation of consumption costs. With ista Aperto, you can easily access device reading data while maintaining full control over management.