Coming up on 50 years in business, O’Hara & Harrison Ltd is one of the leading electrical contracting firms in the North-West. Based in Letterkenny, the family-run business provides its clients – many of whom are long-standing – with a quality and efficient service on a continual basis. O’Hara & Harrison Ltd was formed by […]

O’Hara & Harrison are one of very few Electrical Contracting Firms that provide a wide and varied range of services for all areas in the construction sector. Based in Letterkenny, Co. Donegal, this family run business has been providing advice on electrical design, value engineering and services coordination while supplying high quality, efficient and professional […]