Di Nicola Metallbau specialises in custom steel and metal construction projects. The company designs and manufactures railings, stairs, balconies, canopies, steel structures and bespoke metal solutions for private and commercial clients. Combining craftsmanship with modern technology, every project is executed with precision, durability and aesthetic quality. From consultation and planning to professional installation, Di Nicola Metallbau delivers reliable and high-quality metalwork solutions.

RWD Schlatter is Switzerland’s leading full-service provider for design and functional doors. Based in the canton of Thurgau, the company manufactures custom-made door blanks and complete door systems. Key focus areas include safety features such as fire, sound, and burglary protection, as well as premium accessories and components like timber, steel, and aluminium frames. With over 140 years of experience, RWD Schlatter stands for sustainable, high-quality turnkey solutions and supports its customers with expert guidance throughout the entire construction process. With around 200 employees and regional branches in Dietikon ZH, Taverne TI, and Jongny VD, RWD Schlatter covers the entire value chain – from development and production to installation, mainte-nance, and service. A key element is the company’s own digital service portal, which streamlines all processes for efficient and customer-focused project management. At its highly automated production site in Roggwil TG, RWD Schlatter manufactures around 80'000 cus-tom-made doors each year. Since 2007, the company has been part of the Arbonia Group, headquar-tered in Arbon TG.