In 1978, GfA - a waterproofing company - was founded in Berlin, and a year later it was renamed GfA - Joachim Hagemeier GmbH. GfA soon became a leader in the production of seals of various uses, thanks to its persistent work and investment in the new technologies the Hagemeier family still owns today.

GfA gaskets are an indispensable part of all construction and non-construction structures. The range of products includes more than 5,000 different sealing profiles for all applications. The company is customer oriented and responsive, offering solutions to specific needs.