R. Williamson & Associates is an industry leading supplier of commercial fans, airflow system parts, products and equipment. We are proud to provide brands like Envira-north because it is important to us that our customers receive high-quality parts and services. We specialize in serving the Chicago area.  Products that Envira-north fabricates include:

  • Altar-Air Sailfin Fans
  • Axiom Fans
  • Alite 3 Fans
  • Hurricane Turbines
  • Ecopower Turbines
  • Absolute Air Fans
Envira-north was founded in 2003 when Dan Lambert recognized that energy saving was becoming a top priority. They fabricate air flow systems that help clients reduce energy consumption by contributing to the effectiveness of heating, cooling and ventilation systems. They work closely with each client to ensure that they receive the ideal air movement system for their needs.  A sales team specialist will visit a customer’s facility so that a personalized package can be proposed.


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

About Envira-north

Outstanding Service

Envira-north is passionate about producing high-grade equipment that adheres to their vision.  They are making the environment safer one air movement system at a time.  This has encouraged an increasing number of customers to switch over to their products.

Why R. Williamson & Associates?

Both the teams at R. Williamson & Associates and Envira-north take pride in being experienced, well informed and reliable. From product selection to providing installation solutions, R. Williamson & Associates is here for you.  Please contact us today to find out more.

envira-north Applications

The variety of products produced by Envira-north’s technologically-advanced facility and master technicians can be used throughout a number of industries, such as: manufacturing, agriculture, sport and recreation, commercial, military and defense, medical and many others.  Within these industries, Envira-north’s air movement systems are used in a variety of facilities, including:

  • Dairy Barns
  • Poultry Houses
  • Riding Areas
  • Manufacturing Facilities
  • Warehouse Facilities
  • Hockey Rinks
  • Swimming Pools
  • Gymnasiums
  • Malls
  • Auditoriums
  • Hangars
  • Indoor Paintball Arenas
  • Garages
  • Lobbies

Contact Us

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