CALLISTO CONSULTING ENGINEERING LIMITED

Callisto Consulting Engineering Limited is a specialist consultancy with more than 15 years of combined experience in the construction sector. Based in Tullamore, Co. Offaly, the firm delivers quality‑assured engineering advice to a broad range of clients, from public bodies to commercial developers.

The company’s core expertise lies in the design of building mechanical services, covering heating, ventilation, air‑conditioning and water systems. It also provides Project Supervisor Design Process (PSDP) support, prepares applications for funding—including school emergency works and summer‑works schemes—and carries out commercial Building Energy Rating (BER) assessments. These services are underpinned by a pragmatic, client‑focused approach that balances technical rigour with cost‑effective solutions.