O'Callaghan Construction & Renovation Ltd

O'Callaghan Construction & Renovation Limited is a family‑run building company based in Cork, recognised for delivering high‑quality residential projects throughout Cork City and County. Founded on the reputation of Dave O’Callaghan for craftsmanship and reliability, the business is now led by the next generation, offering a friendly yet professional service to homeowners who want a seamless building experience.

The company specialises in a full suite of building services, including custom new‑build homes, thoughtfully designed house extensions, comprehensive renovations, and smart home alterations. Each project follows a clear process of design, planning and engineering, ensuring that every build meets the client’s needs while adhering to the highest standards of quality and sustainability – exemplified by their recent high‑performance passive‑house project in Crosshaven.

Whether you are starting from scratch, expanding your living space, or modernising an existing property, O'Callaghan Construction provides trusted expertise, honest communication and a commitment to delivering results that add lasting value to any home.