Campbell and Slevin Ltd. is a residential property development and electrical contracting company based in Omagh, County Tyrone, Northern Ireland. Initially formed as a partnership by Aiden Campbell and Terry Slevin, we traded as electrical contractors working on both domestic and industrial projects until 1991, when we became a Limited Company (Ltd.) and 5 years later started work on our first residential development at Kevlin Grove in Omagh. Subsequent developments at our Coolnagard Village site have seen the "construction" side of the firm grow every year since then, and now accounts for 75% of our turnover.

The goal of Campbell & Slevin Ltd. is to operate as a profitable, independently controlled business servicing the needs of its customers for the installation and final inspection and testing of electrical services and the construction and maintenance of building works and associated civil engineering throughout Northern Ireland. It is the committed policy of the organisation to achieve its objectives by developing, maintaining and continually improving its operations through a quality management system that will comply with the requirements of BS EN ISO 9001: 2000, Other British Standards, Approved Codes of Practice and relevant product standards and be maintained by the implementation of procedures for management functions that are properly controlled and monitored to ensure the quality of service and prevention of non-conformity.