Founded by Allyson McDermott in 1980, the practice has established an international reputation in the  care and conservation of the Historic Interior.

We specialise in researching, conserving and recreating authentic period schemes and are renowned for our pioneering work in the conservation, restoration and reproduction of historic wallpapers and painted decoration.

We work all over the world for historic houses, museums, major architects and contractors as well as private individuals. In the UK, clients include such prestigious organisations as Historic Royal Palaces, The Royal Household, English Heritage, The National Trust, Historic Scotland and The Victoria and Albert Museum.