How to Contact Us, Our aim is always to provide the service the customers require from replacing a blown fuse in your home to carrying the complete electrical installation in your factory. Free quotations are available for all work on request, you can contact us now either: By Post: Mainebank Electric, 54 Ahoghill Road, Randalstown, County Antrim  BT41 3DG By Telephone: 028 9447 2319 By Fax: 028 9447 8462 By E-mail: info@mainebank.co.uk