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Welcome to Autosonics, Chicago's premier installer of mobile electronics and commercial and residential audio/video. We have been serving the North Shore for over 45 years. Whether you are installing a simple component into your automobile, building an intricate home theater or looking to secure your business with a surveillance system, we are dedicated to providing you full-service solutions.

At Devcon Security Services Corporation, we take security personally. Devcon Security Services Corporation, was founded in 2001 by management team having more than 100 years of security experience. Now, one of the largest security companies in the country, we have grown by building a strong, satisfied, and safe customer base while earning a rock-solid reputation. Currently providing safety to more than 125,000 residential and commercial customers, Devcon Security Services is one of the premier security brands in the market. With the most modern technology available, we provide specialized security based on the specific needs of each individual customer. While other security companies try to increase profits by reducing costs, at Devcon Security Services, we are increasing our business and maintaining customer loyalty through state-of-the-art equipment, the world’s highest rated monitoring centers, and superior customer service.

Comset Computers works with businesses and individuals that are unable to cope with Internet, desktop and networking problems. We are your best resource for your computer and network needs!

No matter how you gauge it, from quality products to friendly, professional service, ADT Security Services is America's number one provider of electronic security systems and services. Since 1874, ADT's leadership has been - and still is - based on providing all our customers with uninterrupted safety and peace of mind. ADT's continuing commitment to serving its customers better is borne out in significant numbers.

Taurus Security Rolling Shutters is an experienced business that provides installation of residential and commercial rolling shutters, patios, windows etc, to provide protection and security to your home and businesses.

Etronics of Illinois offers custom audio video design and installation. We specialize in home theater and integrated audio systems, as well as Camera Surveillance systems for all applications. We are experts in concealed wiring and media system design. We specialize in surround sound and game console setups. Let us custom tailor your system in your house or place of business. We have fifteen years experience in the low voltage field. At Etronics of Illinois our number one goal is to exceed our customers expectations. All jobs are covered by our lifetime warranty on labor backed by our 15 years experience. Contact us for a free estimate! Business license; 67539591

Protect Your Home is the largest ADT Authorized Dealer. We market, sell, and install home security systems that can be monitored with ADT's world class security monitoring service. Other than ADT Security Services, Inc., we install more security systems than any other company in the United States. We pride ourselves on our people, our systems, and our ability to train leaders. Because of those principles, you will find our service to be the best in the business. We offer the best deals, the most comprehensive solutions, and the fastest response in the industry.

When businesses and homeowners think "alarm system", Alert Protective Services is sure to come to mind. You deserve a security system that protects your family at a price that's more than fair.

The First Family of Security Companies Hiring the right company can make all the difference in your next project. Our site will guide you through the commercial, residential, and vehicle services we offer. No job is too small or too big, from simple lockouts to complex master key jobs, from changing cores to installing hi tech security equipment. When you call, you will speak with an experienced, knowledgeable area manager who can answer your questions and respond quickly to your needs. Need help on the weekends? No extra charge! Lock problems can happen anytime, either on a random Saturday or even a holiday. We will not charge extra for service during those days.

Reliable Alarm Systems has been serving the Chicagoland area since 1983. We provide the best in Electronic Security for Homes,Business,and Institutions.We provide professional services and installation at affordable prices.