General information about ISH for your participation as an exhibitor or visitor.
Opening times ISH 2025
17. - 20.3.2025 (Monday to Thursday):
9 a.m. to 6 p.m.
9 a.m. to 5 p.m.
From 17 to 20 March 2025 the fair is only open to trade visitors, on 21 March, the fair is open to trade visitors and additionally to public visitors. Cash sales and sample hand-outs are not permitted.
Subscribe to the newsletter
Stay up to date and don’t miss any news about the world’s leading trade fair for HVAC + Water. Our newsletter provides you with the latest information and practical tips for your participation in ISH.
ISH Navigator App
The "ISH Navigator" app is your orientation guide to the show. Here you can find all exhibitors and products as well as the events and news of ISH 2023. The ISH Navigator is available for Apple-Products (iPhone, iPad) on the App Store and Android on Google Play Store as a free App.
Use the official catalogue to gain a complete and efficient overview of all exhibitors at the ISH. Detailed information will support you for the preparation and review of your visit. The catalogue will available a few weeks before the show as a printed version and as a digital PDF version.
The printed version is available on site and can be ordered in advance in the Online-Shop.Order the printed or digital version
At the fairground, you can log in to our free WiFi network. Use your Messe-Login or your ticket ID for “Messe Frankfurt WiFi” with any WiFi device. This access is best suited to occasional checking emails or other messages. For higher rates of data transfer we offer special networks.