PJ Kelly founded Errigal Windows around 2005, bringing years of hands-on experience in the glass industry. From working on the factory floor to fitting glass with established companies, he learned the trade from the ground up. That experience shaped the business he runs today: practical advice, careful workmanship and a personal approach to every job. Based in Donegal, Errigal Windows has grown to supply and fit windows, doors and bespoke glazing for homes and businesses across Ireland.