Moffitt HVAC

R.Williamson & Associates is a principal provider of commercial fans, airflow system parts, products and equipment. We are proud to supply brands like Moffitt HVAC because we believe in their high-quality products. We specialize in serving the Chicago area.

For almost 60 years Moffitt HVAC’s team of master design engineers, ventilation equipment manufacturers and ventilator contractors have been refining their methods to create a top-of-the-line product. This allows them to carry projects from inception to completion with unmatched expertise.  Products include:

  • Natural Ventilators like the MoffittVent™, Labyrinth and Thermoflow
  • Wall Louvers like the LV 9090
  • GreenRoo™ Wind Driven Turbine Vent
  • Firex Heat & Smoke Relief Vent
  • Apollo and Apollo-ATI Daylighting Natural Ventilator
  • CoolStream Evaporative Cooling Unit
  • Propeller Wall and Roof Fans
  • Axial & Centrifugal Fans
  • Make-Up Air Units & Heaters


Heating Make-up Air

• Indirect Fired Heat
• Direct Fired Heat
• Hot Water Heat
• Steam Heat

Untempered Make-up Air

• Filtered Fan Box
• Unfiltered Fan Box

Air Rotation / Recirculation Systems

• Indirect Fired Heat
• Direct Fired Heat
• Hot Water Heat
• Steam Heat
• Chilled Water Cooling
• DX Cooling • Filtered

Custom Air Handling Solutions

• Our team has the resources to provide you with a solution to meet your specific requirements.

Cooled Make-up Air

• Chilled Water Cooling
• DX Cooling
• Evaporative Cooling

Door Heaters

• Direct Gas Fired Door Heaters

Paint Booth / HTLV Heating Systems

• Spray & Bake Paint Systems

Energy & Heat Recovery Systems

• We can provide equipment with heat exchangers designed for recovery of waste heat from facility processes.

Engineering & Service Support Services

• Full Mechanical & Electrical Engineering Services
• Startup & Repair Service


Why R. Williamson & Associates?

Both R. Williamson & Associates and Moffitt HVAC are committed to meeting the needs of our clients.  We are experienced, knowledgeable and reliable.  Together we aim to supply more effective, time-saving solutions to our clients.  This has encouraged many customers to switch over to Moffitt HVAC’s systems.

From product selection to providing installation solutions, R. Williamson & Associates is dedicated to help each one of our clients succeed. Please contact us today to find out more.



Moffitt Corporation has facilities all over the world.  There headquarters in Le Roy, New York is home to a 50,000 sq. ft. manufacturing plant complete with state-of-the-art equipment and technicians.  Their extensive operation allows them to produce their products quickly and efficiently.  This means that our clients can expect fast turnaround times and cost effective ventilation systems. Industries that their HVAC systems are ideal for include:

  • Agriculture
  • Chemical
  • Commercial Construction
  • Energy
  • Food Processing
  • Glass
  • Petrochemical
  • Pulp and Paper
  • Steel
  • Textile

Contact Us

R. Williamson & Associates
3334 Main St.
Skokie IL 60076