Marmer en Natuursteenonderhoud Lemstra provides specialized maintenance and restoration services for natural stone surfaces. Located in Groningen, the company focuses on the care of various flooring materials, including marble, travertine, Norwegian slate, and other natural stone types. Their service offerings include floor sanding, polishing, and refinishing to restore the appearance of worn surfaces. In addition to floor restoration, the business provides tile cleaning services and maintenance for stone surfaces in residential areas such as bathrooms and toilets. The company is noted for its technical approach to stone care, including the provision of maintenance kits for ongoing surface protection. Their work covers a range of stone-related tasks, from professional sanding of marble floors to the specialized treatment of slate and travertine.