O'Neill Engineering and Maintenance Ltd

GA O’Neill Engineering Ltd is a specialist light‑ and precision‑engineering firm based in Shillelagh on the Carlow‑Wicklow border, serving the South East of Ireland. With over three decades of experience under founder Gerry O’Neill, the company delivers comprehensive engineering solutions that include design, fabrication, repairs and ongoing maintenance, particularly for waste‑water treatment plants and related environmental services.

The business’s core specialisations encompass the manufacture of bespoke products such as the Bridge Clarifier Trench Brush, custom stillages for the automotive sector, and a range of steel fabrications from angle steps and platforms to expansion tanks and shaft rebuilds. GA O’Neill Engineering is a registered contractor for Uisce Éireann (Reg. No. 754) and works closely with Wicklow, Carlow and Kildare County Councils, providing both onsite emergency repairs and off‑site design and fabrication from its fully equipped workshop. Their mobile van unit extends rapid response capabilities across Dublin, Kilkenny, Waterford, Wexford, Carlow, Wicklow and Kildare.

By combining a lean operational structure with rigorous quality‑control checks, GA O’Neill Engineering consistently delivers value‑for‑money solutions on time and within budget, ensuring minimal downtime for local authorities and commercial clients alike.