Welcome to R. Williamson & Associates, the authorized Hartzell Air Movement representative serving the northeast Illinois and northwest Indiana markets. Hartzell is the leading manufacturer of industrial-grade fans and blowers. And we share in their philosophy that “Good Enough Never Is”.

Hartzell products are the highest-quality, most durable designs in the industry. But it doesn’t stop there. Together, R. Williamson & Associates and Hartzell are experts at addressing fan and blower solutions, no matter the project size or complexity. If you think good enough never is, then think Williamson and Hartzell for your air movement projects.

Centrifugal Fans
Axial Fans
Corrosion Resistant FRP
Process Ventilation