Blank Dachdeckerei GmbH is a medium-sized company based in Schwielowsee (Caputh district), currently employing 26 staff and two apprentices. The family-run business was founded in 1987. In 2014, the second generation took over the roofing firm. As a master craftsman’s business, the company specialises in the preservation of historic buildings and also operates beyond the local area as a point of contact for new builds and refurbishments.