The picture shows a man sitting on a balcony in an urban environment. He is wearing a dark blue suit and a white shirt and is sitting relaxed at a small black table on the lower half in the centre of the picture. On the table in front of him are a laptop, a notepad with a pen and a coffee mug. The man has rested his legs on the balcony railing and is holding a telephone in his left hand while talking on the phone. The balcony is richly decorated with plants. On the left of the picture, climbing plants stretch up the wall, taking up almost the entire left side of the picture. Below the climbing plants are several pots of flowering plants and greenery arranged along the floor of the balcony. Above the man, stretched across the balcony, is a string of lights with several light bulbs that extends from the top left-hand corner to the right-hand side of the picture. In the background you can see a row of multi-storey buildings in various shades of yellow stretching across the top and centre of the picture. Behind the buildings is a park-like landscape with many trees that further break up the background. The sun seems to be either rising or setting, giving the picture a warm, golden glow. The view from the balcony extends over the roofs of the city.

Be compliant

Legal compliance: The key to a stress-free property.

Ensure compliance with energy regulations, reduce risks, and unlock funding opportunities with our expert team. Rest easy, knowing your property is not only compliant but also driving a greener future.

Your benefits at a glance:

Minimize legal risks

Avoid penalties and fines

Future-proof your property

Contribute to a sustainable future

Nationwide coverage wherever you are

ista – Your trusted partner for your property compliance.

We understand navigating complex and ever-changing regulations can be a daunting task. Furthermore failure to comply with energy efficiency standards can lead to costly penalties and legal action, not to mention reputational damage.

That's where we come in - our team of experts can navigate the regulatory landscape with ease, providing peace of mind and protecting your property. Trust ista to be your compliance partner and streamline your property management needs today.

Find out more how our services can benefit your property compliance.

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We reduces risks and increase opportunities for you.

If you are looking to stay ahead of the curve when it comes to property compliance, look no further. Our digital solutions ensure a smooth and easy process for you to solve all your compliance needs.

Essential services your property needs right now.

With our comprehensive services, you can rest easy knowing that your billing and utility expenses are taken care of, leaving you free to focus on other important aspects of property management.

Das Bild zeigt eine Frau, die auf einem Sofa sitzt und die Heizkostenabrechnung von ista liest. Sie hat langes blondes Haar und trägt eine schwarze Brille. Ihr Oberteil ist ein blaues Hemd, dazu trägt sie eine braune Hose. Während sie die Heizkostenabrechnung in der linken Hand hält, ruht ihre rechte Hand an ihrem Kinn. Sie blickt direkt in die Kamera. Das beige Sofa, auf dem sie sitzt, erstreckt sich über das gesamte untere Drittel des Bildes. Auf der linken Seite liegt eine weiße Decke über der Rückenlehne, davor lehnt ein gelbes Kissen. Im Hintergrund sind verschiedene Möbelstücke zu erkennen, die auf ein Wohnzimmer hinweisen: Rechts stehen eine Stehlampe und ein Regal, in der Mitte führt eine offene zweiflügelige Tür in einen weiteren Raum mit Bücherregalen. Der gesamte Hintergrund ist unscharf.

Heat Cost Allocation

Allocate heating costs fairly among residents.

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The image depicts a man sitting at a round table in a well-lit office space. There is a glass of water and a small espresso cup on the table, adding to the professional yet comfortable atmosphere. The man is smiling and engaged with the water consumption billing from ista on his laptop, taking notes in a notebook. He is wearing a blue button-down shirt and glasses. The background features a flip chart, potted plants, modern furniture, and large windows allowing natural light to flood the room.

Water Billing

Save time and money with remote metering and transparent water billing solutions.

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The picture shows a middle-aged man working in a workshop or studio. He has dark hair, wears glasses and his face is framed by a full, well-groomed grey beard. He wears a dark blue denim shirt and smiles broadly.The man is leaning over a large work table while holding a smartphone in his left hand looking at ista’s operating cost billing and making notes on the paper with his right hand. There is an open laptop on the table in front of him. Next to the laptop is a blue coffee cup.The background of the workshop is blurred, but you can recognise shelves and tools that indicate a manual or creative activity. The light streaming in from the right through a window illuminates the scene and creates a warm, inviting atmosphere.The man appears focussed and content, which is conveyed by his smile and relaxed posture.

Operating Cost Billing

Consumption-based billing with ista optimizes the process of operation billing for property owners and managers and provides residents with a accurate and easy to understand billing.

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Minimize risk with our health & safety services.

We understand that health and safety are top priorities for property managers and owners. That's why we offer a range of comprehensive health and safety property services to help minimize risk and ensure the safety and well-being of the occupants.

The picture shows a young pug standing comfortably and drinking water directly from a silver tap. In the background, the light brown kitchen counter on which the dog is standing and a few objects lying on this plate can be recognised in a blur.

Drinking Water Analysis

Ensure safe, clean drinking water with expert analysis, accurate contamination detection, and advanced Legionella prevention.

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The picture shows a tap. The tap is made of shiny metal and has a curved shape that points downwards. At the end of the tap, where the water normally comes out, hangs a single drop of water that is about to fall. Another tap can be seen blurred in the background to the left of it. The entire background of the picture is blurred and shows a mixture of green and blue colours that could be reminiscent of an outdoor area or a garden. The light in the picture is warm and appears to be coming from the top left, casting a soft, golden glow on the tap. This creates a feeling of freshness and clarity, as if it is a sunny morning. In the foreground of the image, below the tap, there is a blurred area which may represent a sink or basin.

Tap Maintanance

Prevent leaks and maintain water systems efficiently.

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The picture shows an intimate moment in a brightly lit room. In the foreground is a couple in a loving embrace in front of a large window. The man is wearing a brown top and beige trousers, while the woman is wearing a light-coloured top and dark trousers. Both people are standing barefoot on a wooden floor, with the man standing slightly behind the woman and embracing her tenderly. The window, which takes up most of the background, allows plenty of natural light into the room and offers a view of a wooded outdoor area. The sunlight streams through the window and creates warm rays of light in the room. To the left of the picture, near the window, is a table attached to a wall. There are two small objects on the table, presumably salt and pepper shakers. To the right of the window is a large houseplant in a white flower pot. The plant is clearly visible and lends the room a natural atmosphere. In the right-hand part of the picture, further in the background, there is a piece of wooden furniture that looks like a wine rack or a small shelf. There are a number of objects on the shelf, including a framed picture and other decorative items.

Smoke Detector Service

Ensure safety with regular smoke alarm checks.

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Take the first step towards legal compliance.

Facts & figures

6,300 employees

20 countries

3.7 mil. t CO₂ emissions avoided

43 mil. radio devices

14 mil. utilisation units

Innovative solutions which deliver results.

Our digital solutions are designed to help our clients reduce their environmental impact, improve health and safety in their buildings, and reduce energy costs.