In 2005 she climbed Mount Kilimanjaro for Sunfield, a school for children with autism and complex learning needs, of which she is a patron. On 21 April 2008, she hosted a VIP-night performance of Hapgood at The Birmingham Rep in aid of Sunfield and raised a further £3,500 for the charity. She is also a supporter of the National Autistic Society's "Make School Make Sense" campaign. In 2009, Lawrence raised £25,000 for Sunfield by appearing on "Who Wants to Be a Millionaire?" with Meera Syal.