Locations/Maps - Little Heath BWI Self Storage Unit 12, Hainault Works Hainault Road Little Heath Romford Essex RM6 5NF. Easily accessible from East London, Hertfordshire and Essex. We are conveniently. There is plenty of free parking Coming by car? Hainault Road runs between Forest Road and the A12 by Chadwell Heath. We Serve Little Heath, Chadwell Heath, Romford, South Woodford, Woodford, Gants Hill, Ilford, Redbridge, Clayhall, Buckhurst Hill, Barkingside, Snaresbrook, Chigwell and Wanstead.