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.

Your metal construction specialist in Eastern Switzerland. We design, fabricate and install conservatories, patio and louver roofs, balcony extensions, carports, stairs, railings, doors (incl. fire-rated), windbreaks and balcony/facade glazing. Custom steel, stainless steel, aluminium and glass solutions with CAD design, structural calculations, building permits and after-sales service. From onsite consulting to handover—precise, on schedule and local. Visit us: Signalweg 1, 8590 Romanshorn.