Wierig

About

Wierig is a private headquartered in Siegburg, Germany with approximately 200-500 employees specializing in Solar.

Wierig GmbH Dach und Fassade is a family-owned company founded over 130 years ago, headquartered in Siegburg, Germany. The company employs approximately 200 staff members including roofers, sheet metal workers, and specialists in energy, electrical engineering, photovoltaics, lightning protection, and waterproofing. Wierig specializes in flat roof construction, renovation, sealing, and energy solutions for industrial and commercial properties. Key service areas include new construction and renovation of flat roofs, thermal insulation, roof management, energy optimization through photovoltaic systems, lightning protection systems, and comprehensive facility maintenance. The company emphasizes sustainability, energy efficiency, and long-term durability in all projects. Wierig operates multiple subsidiary entities including Wierig Liquid GmbH (liquid plastic systems), solar energiezukunft GmbH (solar solutions), and Wierig Services GmbH (roof management and maintenance).