Affiliated Customer Service Inc. has over 37 years of experience in efficient handling of fire alarm needs at competitive prices. Whether your requirements involve a new installation, tenant build-outs, retrofit replacements, multiple site tests or servicing existing third party equipment, we have the experience, the onhand equipment and the labor force to cover it all. We serve the whole of Chicagoland, NW Indiana and Southern Wisconsin. Call us today at 630-434-7900. NetVision 2020 software was developed to link multiple brands of fire alarm systems to a single workstation, giving key personnel the information they need to make timely, informed decisions.