Great Missenden, Amersham, Little Missenden, Little Chalfont, Loudwater, Prestwood, Little Kingshill, Great Kingshill, South Heath, Chesham, Chesham-Bois, Marlow, Moor Park, Beaconsfield, Gerrards Cross, Chalfont St Peter, Chalfont St Giles, Chorleywood, Sarratt, Rickmansworth, Ruislip, Harefield, Pinner, Harrow, Stanmore, Bushey, Uxbridge, Hillingdon.
Other areas not mentioned on request – but may incur an additional charge.