Halloran & Sons Mechanical
Founded in 1992 by Herbert Antonelli, Halloran & Sons Mechanical emerged from a vision of climate orchestration for modern urban environments. Originally tasked with managing heating systems across a chain of Chicago-area restaurants, the company soon realized that the future of commercial comfort lay not in reactive repairs, but in intelligent automation tailored to each building’s unique rhythm.

Designs and installs predictive hydronic systems that automatically adjust boiler output based on real-time occupancy data
Delivers centralized climate control across multi-building portfolios using a single unified BAS interface
Specializes in retrofitting legacy systems with IoT sensors for seamless integration into modern smart building networks