ISH 2025 exhibits new innovations to accelerate the progress across digitalisation and sustainability.

For five days, the Frankfurt exhibition grounds became a hub for the sanitation, heating and air-conditioning industry. From heating and cooling systems to echo-friendly ventilation systems and intelligent water management technology were showcased.

There were 163,157 visitors across 150 countries who were key decision-makers, from industry and trade, the construction and housing sectors as well as planners, engineers and architects. The skilled trades accounted for 30% of attendees.

“Everyone needs clean air, drinking water and a warm home – and this is exactly where our industry comes in. ISH 2025 has powerfully demonstrated that innovative solutions to meet these basic needs have long been available,” Messe Frankfurt president and chief executive Wolfgang Marzin says.

“Our exhibitors have shown that the transition to a sustainable economy is not only vital, but already underway despite the challenges we currently face. They are developing technologies that improve our daily lives while making them more sustainable.”

There were 2,183 exhibitors from 54 countries which filled all the Frankfurt exhibition grounds. There were overviews of the latest developments in heat generation, refrigeration, air-conditioning and ventilation technologies, intelligent building automation, sustainable bathroom design and installation solutions.

The main focus was on heat generation and an emphasis on alternative heating technologies. Exhibitors showcased innovations such as wood-based heating systems, sustainable heat production methods and highly efficient heat storage solutions.

ISH 2025 introduced a concept structure around eight solution areas of sanitary spaces, water-bearing systems, installation technology, heat generation, indoor air, intelligent building control, software and HVAC + Water product manufacturing.

The Building Future Conference brought in experts from politics, business and science to discuss sustainable construction concepts and efficient energy supply solutions. The Value of Water Conference was held for the first time in corporation with Eurofoam. It focused on UN sustainable development goal six ‘ensuring access to clean water and safe sanitation’.

“Only through cooperation, innovation and clear political direction can global access to water be sustainably improved,” Messe Frankfurt board of management, technology member Iris Jeglitza-Moshage says.

The ISH Festival 2025 became the meeting point for the next generation of the HVAC and sanitation industry, in particular apprentices trying new technologies, testing tools and showcasing their craftsmanship.

The next ISH will be from 15 – 19 March 2027.