Although these suppliers don't match your search for Castles in London, they are within approximately 40 miles and could still be of interest.
Venues, Castles, Farnham, Surrey
Farnham Castle is an impressive wedding venue located in Farnham, Surrey, offering 7 locations to hold your wedding ceremony (including 2 on-site Chapels for religious ceremonies), a spacious reception Hall, 33 en-suite bedrooms, an in-house kitchen team and full planning support throughout your wedding planning journey. The historic Castle sits on 5 acres of land, overlooking the market town of Farnham and is located within close proximity of Farnham Train Station, the M3, M25 and A3, and both Gatwick and Heathrow airports. (Castles in London)