Old School Value, Expert Service, and Efficient Solutions 

ACS Filters & Service was founded in 1969 by Sam Viola. Today, our business and flagship location on Grand Ave still upholds the same mission: to serve Chicagoland engineers with the filters needed for quality ventilation. 
 
ACS has had a reputation for 55 years for heartfelt service and quality products at low prices. We have a large inventory of HVAC filters and belts. ACS’ service department delivers quickly and can schedule filter change-out services. Other services include free site surveys of cottonwood screens. 
 
Here to help you save money in your budget while also ensuring your HVAC ventilation filter and belt needs are taken care of – ACS wants to make it easy to keep us as your preferred supplier. 

Our Large Inventory

You’ll be impressed with our large inventory of standard filters; made-to-order custom filters are our specialty; a large selection of HVAC Belts; Cottonwood Screens custom measured to your RTU/AHU/Chillers/Cooling Towers; and our State-Of-The-Art HEPA-UV Portable Air Cleaners to fight illness (and COVID as recommended by ASHRAE to CDC).

Our Markets include

• Schools and Universities - Private and Public
• Property Management Firms
• Real Estate Management Companies
• Facility Maintenance Companies
• HVAC and Mechanical Contractors
• Retail - Including Shopping Malls
• Manufacturing Plants - From Foods to Metals
• Health Care Facilities and Hospitality Centers