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 of heartfelt service, quality products, and low prices for over 55 years. We’re committed to helping you reduce costs while making sure your HVAC filtration and belt needs are handled quickly and reliably.
Our goal is simple: deliver complete satisfaction and become your go-to supplier.
You’ll find an extensive selection of standard and custom filters, premium HVAC belts, and custom-fit cottonwood screens tailored to your RTUs, AHUs, chillers, and cooling towers. Our service team is also available for scheduled filter change-outs, helping your system maintain optimal air quality and performance.




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