The component - perfect with the right seal. And that is our passion. With in-house toolmaking, rapid prototyping, a wide range of materials and the full commitment of more than 100 employees. We develop solutions - on 17 extrusion lines and with the highest technical standards. Knowledge and expertise become quality - in use throughout Germany and internationally. That is GfA!
Valuable insider and product expertise, a high-quality professional program, special showcases and insights into current trends and technologies … From March 24 to 27, 2026, the industry meets at the world’s leading trade fair for windows, doors and façades – and we’ll meet you there! As always, at our exhibition stand (Hall 4, Stand 432) and in front of the stage: GfA Managing Director Nico Czok will take the spotlight as a speaker on March 24 from 11:30 a.m., focusing on the topic of “window tuning”. (Psst: Every window gets better with GfA seals!) We look forward to great conversations – feel free to schedule an appointment!
When installing seals in windows, precision is essential – otherwise leaky corners, drafts and moisture can occur and heat is lost. The solution, made by GfA: cleanly welded sealing frames for timber, timber-aluminium, aluminium and PVC windows. We cut with millimetre precision, weld the corners neatly and remove the welding seams – many small steps for one optimal result: windows that remain airtight for years! Your specialist advisor has all the information!
Sealing profiles accurate to the millimetre, expert advice and the right sealing solution for every application - directly from the seal manufacturer. We supply industry, commerce and trade and seal everything. Welcome to the world of GfA:
Largest sealing programme +++ Sealing profiles for wooden doors +++ Made in Germany +++ Sealing profiles for steel frames +++ Silicone rubber +++ Energy-saving seals +++ Free delivery +++ Self-adhesive sealing profiles +++ Rapid prototyping +++ Sealing profiles for vehicle construction +++ Say goodbye to draughts +++ Sealing profiles for conservatories +++ Calibration tool +++ Sealing profiles for retrofitting +++ Anti-streching string +++ Sealing profiles for window systems made of wood, aluminium, wood-aluminium, steel +++ own toolmaking +++ renovation seals +++ directly from the seal manufacturer +++ erosion technology +++ sealing profiles for replacement +++ delivery from 5 meter