Betrouwbare service op elk moment van de dag.

Contact & ondersteuning.

Wilt u contact met ons opnemen, heeft u hulp nodig of heeft u vragen over onze producten en diensten? U vindt de antwoorden en contactgegevens bij de verschillende servicegebieden van ista.

Servicegebieden

Ik ben Bewoner

Informatie voor bewoners op één plek.

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Ik ben Beheerder

Informatie en ondersteuning voor Beheerders.

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Ik ben Installateur

Hier vind je antwoorden op de meestgestelde vragen en krijg je extra informatie.

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Service Information

The picture shows a woman sitting on a couch and reading the ista heating bill. She has long blonde hair and is wearing black glasses. Her top is a blue shirt and she is wearing brown trousers. While she holds the heating bill in her left hand, her right hand rests on her chin. She looks directly into the camera. The beige couch on which she is sitting stretches across the entire lower third of the picture and has a white blanket draped over the back on the left with a yellow cushion leaning against it. In the background are various pieces of furniture that suggest a living room: A floor lamp and a shelf can be seen on the right, and in the centre an open two-part door leading into another room with bookshelves. The entire background is blurred.

Webinar: Digital Water Billing.

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The picture shows a young man with glasses, leaning slightly forwards and sitting on a modern wooden bench. The bench is in a bright and cosy room. The man is wearing a light blue shirt and mustard-coloured trousers. He is holding a tablet in his hands and looking at ista's heat metering system. Behind the man, to the right of the picture, is a large floor-to-ceiling window that allows plenty of natural light into the room. A green garden with lush vegetation can be seen through the window. Next to the window is a large plant in a pot on the floor. To the right of the plant is a black radiator, which contrasts with the light and natural colours of the room. To the left of the man, part of a beige sofa is visible. Other parts of the room can be seen in the background on the left of the picture, possibly including a door or another window, which also bring light and space into the room.

Viewing consumption is now even easier.

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The picture shows two people sitting opposite each other at a table in a room filled with warm sunlight and with glass walls. On the left side of the table is a full glass of water and asmall pile of documents. The picture was taken from the perspective of one person, so that you only see the back of them and the other person, who is a woman, is in focus. The woman is in the center of the picture and the other person is on the right side of the picture, beeing a bit cut off. The woman is wearing a bright blue shirt, has dark wavy short hair and is smiling at the other person while holding her right hand to her chin and the other hand lying on the table touching her ellbow. The person that can only be seen from the back has a black jacket on and bright blond hair/ grey hair and a short sleek back haircut. They are explaining something to the woman while they are holding a document with their left hand and pointing with a ballpoint pen with their right hand onto something on the document.

New service offer for all users.

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Saving energy can be so easy.

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Wees slim.

De beste tips om eenvoudig energie te besparen.

Ontdek praktische tips om uw energieverbruik te verminderen zonder in te leveren op comfort.

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Webinars en evenementen

Samenwerken met ista betekent werken met betrouwbare experts in energiemanagement die u helpen kosten te besparen en de efficiëntie te verhogen. Met ista krijgt u toegang tot geavanceerde technologie en innovatieve oplossingen die uw energievoorziening toekomstbestendig maken.