B&M – Mexborough – Opening Hours & Store Details B&M Store is found in an ideal position at 44 High Street, a 0.35 mile drive west of the centre of Mexborough (near Mexborough station). This discount store essentially provides service to customers from the areas of Adwick Upon Dearne, Swinton, Shimmer, Bolton-On-Dearne, Old Denaby, Mexborough Town Centre and Kilnhurst. Please see the various sections on this page for specifics on B&M Mexborough, including the business times, location info, email address and further information about the store.