The Mark Roberts Conservation studio has provided professional picture conservation services for more than 40 years and has been based at the Harley Foundation since 2000.

The paintings treated range from Italian panels and Old Masters to British paintings from the 17th – 19th Century. Clients include public museums as well as private collections and they have worked on paintings by Van Dyck, Stubbs, Singer Sargent, Sickert, and Piper, amongst others.