ALTER SYSTEMS LIMITED Company number 03013393 · Monitor this company Dissolved Overview People 7 Documents Gazette Analysis Location Related Registered office AddressUNIT 11 DALE STREET MILLS, DALE STREET, LONGWOOD, HUDDERSFIELD, ENGLAND, HD3 4TG PostcodeHD3 4TG Companies at this postcode 241 Average house price in HD3 4TG £101,000 (6 sales) Map