I completed my apprenticeship as a plasterer from 1983 to 1986. After gaining my first professional experience, I took over my parents' company, V. Hossmann AG, together with my brother in 1993 and initially worked as a plasterer, foreman and construction site manager. From 2001 to 2017, I was a foreman and member of the management team at V. Hossmann AG. I left the company at the end of 2017 and founded my own plastering business, Guido Hossmann Gips.

I can look back on 35 years of professional experience, have worked in various roles in the construction industry and have completed various specialist training courses: Dry construction, acoustic ceilings, stucco, Stucco Veneziano, Naturofloor and construction management.