GSB LTD Company number 14128375 · Monitor this company Active Overview People 1 Financial Control Documents Analysis Location Related Registered office AddressOffice 308 Regal Court Business Centre, 42-44 High Street, Slough, Berkshire, England, SL1 1EL PostcodeSL1 1EL Companies at this postcode 306 Average house price in SL1 1EL £527,000 (27 sales) Map