Company history

Company history


Founding of the company by Otto Kerger/Manufacturing and assembly of awnings, roller shutters, folding and rolling grilles.


Shifting of production to nuts and bolts during the Second World War. After the bombing of Wuppertal, production was relocated to Schonach, Black Forest.

The son, Ernst, becomes owner after the war and the original products are manufactured again in Wuppertal Elberfeld.

Klaus Kerger takes over management after the death of his father, Ernst. In the following years the company increases its turnover and output quite significantly.

Relocation to the newly constructed building on Otto-Hahn-Straße in Wuppertal-Ronsdorf

Founding of Keroll Kerger GmbH, under whose name business has been carried out until the present.

Since the mid-1980s, the company has concentrated on the production of folding grilles, roller shutters and folding grills and has operated exclusively as a presupplier for companies specialised in the gate, shutter, sun protection and metal construction sectors.

Since 1991 the company has exhibited at the world’s leading trade fair for roller shutters, gates and sun protection, the R+T in Stuttgart.

Purchase of the neighboring hall and expansion of production.

Keroll Kerger GmbH celebrates its 100th anniversary. Meanwhile, the family company of Klaus Kerger reaches the fourth generation with daughter Anne and son Thomas.

Installation of 2 photovoltaic systems on the hall roofs.
This year the company has significantly optimized its market presence: a fresher, more modern appearance and the new website are the result. Keroll Kerger GmbH presents itself as an owner-managed family business that is firmly rooted in the region, but is internationally successful with its individual product solutions.

Completion of the intermediate building and connection of the 2 previous halls. Expansion of office space, production and storage areas.

At the world’s leading trade fair R+T, Keroll is exhibiting transparent goals made of polycarbonate for the first time.

Thomas Kerger and Anne Sonnenschein have taken over the management since October 2022.