stetra GmbH and SteelFire specialize in high-quality metal construction, balconies, railings, stairs, doors, and custom steel structures in Switzerland. We provide tailor-made solutions for residential and commercial projects, including balcony glazing, glass railings, and canopies. SteelFire enhances outdoor spaces with stylish fire bowls, premium barbecue accessories, and exclusive garden furniture. Our products stand out for their precision craftsmanship, durability, and elegant design. Trust Swiss expertise for metal construction and sophisticated outdoor living solutions.

Gysi+Berglas AG plans, manufactures and installs the greenhouse shell, heating and irrigation systems as well as climate computers with its own technicians and installation personnel. Our specialist planning team is at your disposal for the engineering of building applications, concept studies or submission documents. Together with proven partners, we offer NL glass houses and foil houses, energy and shading screens, electrical installations, interior fittings and master builder work. Everything installed by Gysi+Berglas AG can be serviced and repaired by us. Our specialists can also work out energy concepts with alternative energy sources, concepts for energy-saving measures on the greenhouse shell, control strategies or the entire water management.