HARPER SIGNS LIMITED Company number 01347995 · Monitor this company Active Overview People 10 Financial Control Charges Documents Analysis Location Related Registered office Address1 Harvey Combe, Killingworth, Newcastle Upon Tyne, NE12 6QQ PostcodeNE12 6QQ Companies at this postcode 5 Average house price in NE12 6QQ £293,000 (1 sales) Map