Welcome to United Engineering, Inc.

Industrial Ventilation & Plant Utility Systems!

United Engineering, Inc.


  • Hot - Is your production area work environment hot?
  • 10°F - Is your production area work environment more than 10°F above the outside air temperature in the summer months?
  • Humid - Is your production area work environment humid?
  • Employee Turn Over - Have you lost good employees because the production area work environment is too hot or too cold?
  • Steam or Hot Water - Does your process use steam or hot water?
  • Hissing - Do you hear ‘hissing’ from steam traps or compressed air lines?
  • Steam Leaks - Do you see steam leaking from steam piping?
  • Inefficient - Are your plant boilers, chillers and towers old & inefficient?
  • Room Humidity Control - Does your plant process require room humidity control?
  • Negative Pressure - Is your plant negative? When dock doors are open, is unfiltered air coming in?
  • Cold Dock Door Area - Is the area near the dock doors cold in the winter?
  • FDA - Do you have an FDA requirement to keep food products manufactured in a clean environment?
  • Dust Collection - Does your process require dust collection?
  • If the answer is “YES” to any of the questions above, CALL US! 815-744-1010

United Engineering, Inc. provides industrial ventilation & plant utility systems. Since 1996, we have been making industrial environments healthier, more comfortable and much more efficient. The following are examples of plant utility systems we provide:

  • Summer Ventilation
  • Make Up Air Systems
  • Exhaust Systems
  • Dust Collection Systems
  • Chilled Water & Tower Water Systems
  • Process Steam & Hot Water Boiler Systems
  • Compressed Air Systems
  • Equipment Power Panels
  • Service Upgrades

United Engineering, Inc. is a diverse team of engineers and project managers:

  • American Conference of Governmental Industrial Hygienists (ACGIH)
  • American Society of Heating, Refrigeration & Air Conditioning Engineers (ASHRAE)
  • Association of Energy Engineers (AEE)
  • Association of Plumbing Engineers (ASPE)
  • Certified Energy Managers
  • Illinois & Indiana Registered Professional Engineers


  • Process exhaust systems
  • Dust collection systems
  • Dust Hazard Analysis (DHA) NFPA 652 compliant 
  • Custom capture hoods
  • Exhaust booths
  • Summer ventilation systems
  • Make up air systems
  • Space pressure control

Plant Utility Systems

  • Room humidity control
  • Process steam & hot water systems
  • Chilled & tower water systems
  • Heat exchanger systems
  • High pressure gas systems

Energy Reduction

  • Energy recovery options
  • Energy usage analysis (EUI Review)
  • Energy Star (EPI Review)
  • Utility incentives 
  • Automated control systems

Who We Are

United Engineering is a team of professional engineers who have the experience to analyze industrial ventilation issues and engineer the correct solutions that meet the customer’s performance, financial and sustainable goals.

What We Do

  • Analyze issues
  • Evaluate technology options
  • Engineer cost effective/efficient solutions
  • Manage upgrades (start to finish)


United is a good standing member of the American Conference of Governmental Industrial Hygienists (ACGIH), the National Fire Protection Agency (NFPA), the Association of Energy Engineers (AEE), the American Society of Heating, Refrigeration & Air-Conditioning Engineers (ASHRAE), 6 Sigma and others.