Tadeusz Romański is the visionary owner of Grupa Magnum, a leading supplier of window and door installation solutions with over 25 years of experience in the industry. Grupa Magnum specializes in a diverse range of products, including thermal window sills and various mounting accessories, as well as offering software tools for quick pricing of thermal installations. In addition to retailing these essential items, Grupa Magnum operates a wholesale mosquito screen manufacturing service in the Tarnów area of Małopolska.

The company is committed to fostering long-term partnerships with businesses in the window carpentry sector, supporting them through extensive training programs and certified installation courses that have educated over 2,500 individuals from 900 different companies. With a robust catalog featuring 16,000 products, Grupa Magnum exemplifies reliability and innovation in the marketplace. The brand is dedicated to enhancing efficiency and sustainability in window installation, contributing to energy-efficient construction practices through its wide range of offerings and services