ESSENTIAL WATER SERVICES LIMITED Company number 04661727 · Monitor this company Dissolved Overview People 7 Financial Control Charges Documents Analysis Location Related Registered office AddressUnit 4 Oakfield Business Corner, Works, Letchworth, Hertfordshire, SG6 1FB PostcodeSG6 1FB Companies at this postcode 10 Average house price in SG6 1FB £280,000 (2 sales) Map