Costco – Saint Helens – Opening Hours & Store Details You can find Costco on Andover Rd, approximately a 3.40 mile drive east of the centre of Saint Helens UK, in Haydock (nearby St James Ce Primary School and Haydock English Martyrs’ Rc Primary School). The store is fittingly located to serve patrons from the districts of Haydock, Earlestown, Garswood, Newton Common, Blackbrook, Ashton-In-Makerfield, Broad Oak and Haydock Industrial Estate. Here you may find some information about Costco Saint Helens, including the working hours, location description or email contact.