keeping traditional aesthetics while aligning with contemporary thermal and construction standards. Rasper serves corporate and private clients with individually tailored projects. Its offering includes custom wooden windows in several opening types, internal and external doors made from drawings or historical copies, and custom-built stairs primarily using hardwoods such as ash and oak. The company also manufactures additional construction details such as hatches, cornices, paneling, and interior trim, using traditional techniques including hand-painting with linseed oil paints and fitting period-appropriate hardware when required.