Areas We Cover Neil Sullivan & Sons Ltd offers a wide range of concrete services across East Anglia, London and Essex. To find out which of our services are available in your area, simply click on the location below. South East Chelmsford Brentwood Braintree Colchester Southend On Sea Romford Bishop’s Stortford Maldon Grays Frinton Walton Clacton Harwich Brightlingsea Basildon Billericay Tollesbury Tiptree South Woodham Ferrers Chipping Ongar Rayleigh Hadleigh Halstead Haverhill Sudbury Canvey Island Mayland Wickford Error: Could not find form, check your ID and try again.