Westside Mechanical Group

Westside Mechanical Group has operated from Naperville since 1970, building a half-century legacy as one of the Chicago area's largest full-service mechanical contractors. With a workforce exceeding 350 professionals and annual revenues approaching $100 million, the firm handles everything from design-build installations to ongoing preventative maintenance across healthcare facilities, universities, retail centers, and data laboratories. The company holds a 4.6-star rating compiled from 11 client reviews, a testament to consistent execution across complex commercial projects and urgent residential callbacks alike.

What distinguishes Westside from regional competitors is their in-house fabrication capability: the company employs its own sheet metal workers and pipe fitters rather than outsourcing critical components. Their service division dispatches over 30 technicians daily, each equipped with iPads handling paperless work orders, a nod to efficiency that clients notice in testimonial feedback. Emergency availability runs around the clock, every day of the year, and their BIM and 3D modeling capabilities allow for precise preinstallation coordination on retrofits and new construction alike.

Clients repeatedly reference specific team members in their praise. Dave Bisone earned recognition for patient guidance on a property owner's project, while service technicians Ron and Jason recently responded to storm damage at a commercial building, quickly securing roof penetrations and removing compromised rooftop units to prevent secondary water intrusion. These granular references, not generic statements about "great service", suggest technicians build lasting relationships that generate repeat calls.