Build with O'Callaghan Construction Cork

Trusted builders in Cork for new builds, extensions, renovations and alterations

O'Callaghan Construction is a family-run building company based in Cork, known for delivering high-quality residential projects across Cork City and County. Built on the foundation of Dave O'Callaghan's outstanding reputation for craftsmanship and reliability, the business is now proudly led by the next generation. From new builds and extensions, to renovations and alterations we offer a trustworthy and professional building service - backed by years of experience, a friendly team, and a commitment to give homeowners the best results possible.