The Frick Collection has a long-standing commitment to conservation, though for many years much of the conservation work was done on a contract basis with members of The Metropolitan Museum of Art's conservation staff and other conservators. In particular, legendary conservator William Suhr looked after the paintings collection, and Rostislav and Nicholas Hlopoff worked with the decorative arts and sculpture collections, maintaining a studio within the museum. In 2000, the institution hired its first full-time staff conservator and broadened that position's responsibilities to include collections care and historic preservation of the building. In recent years, the Frick has significantly increased its commitment to conservation. The department now consists of two full-time conservators and two full-time technicians.