G M S Building Services Ltd

1 Alma Road, BR5 4PT

UNit 8, Estuary House, Thames View Business Park., Canvey Island, SS8 0EQ

21 Hanover Street, London, W1S 1YU

Douglas Houghton House, 231 Vauxhall Bridge Road, London, SW1V 1AD

21 Lingwood Close, Chelmsford, CM3 4QE

944 Eastern Avenue, Newbury park, Ilford, IG2 7JB

224 Iverson Rd, London, NW6 2HL

55A Bradford Street, Braintree, CM79AT

71–75 Shelton Street, London, England, WC2H 9JQ

20-22 Wenlock Road, London, N1 7GU