Computer Services in Chicago and Chicagoland Area
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Dell Computer System and Repairs Chicago IBM Business Partner Chicago WatchGuard, protect your network
Digium Chicago Switchvox Chicago Clearwire Partner Chicago
About Us - Serving Chicago and Chicagoland Suburbs Computer repairs, virus removal, laptop repairs, networking, phone systems - Serving Chicago and Chicagoland Suburbs Computer repairs, networking, virus removal, phone systems - Serving Chicago and Chicagoland Suburbs
Total IT Solution Provider - Serving Chicago and Chicagoland Suburbs Total IT Solution Provider in Chicago and Chicagoland Suburbs
Technical Support for all your I.T Needs Our Products Security Audit and Sarbanes-Oxley Virus Removal, Time Management, Security Cameras, Internet Security, Technical Support
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Virus Alert Let us host your applications and you access them from anywhere in the world. Remote Dektop. Alternative to Citrix. Remote Dektop. Alternative to Citrix
GCS pledges to partner with customers to assess needs, solve problems, and strive for total customer satisfaction.
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Why Choose GCS for Your Computer Repair and I/T Services ?

  • Chicago Metro On Site Virus Removal / Firewall Protections
  • Chicago Metro On Location Home / Office Network Installations (Wired and Wireless)
  • Emergency Data Recovery and Disaster Recovery Solution in Chicago and Chicagoland Suburbs
  • Chicago On Site Computer Repair / Laptop Repair, Tunes-ups, Upgrades and Preventative Maintenance for Home and Office
  • Propalms, Remote Computing, Virtual Private Network (VPN) Solutions
  • Application Service Provider, ASP -- Alternative To Citrix but At Much Lower Cost
  • Nortel, Cisco, Avaya, NEC, Norsta, Voice Over IP (VOIP) Phone Systems Installation and Support
  • Web Based Video Monitoring and Security
  • E-Commerece Solutions, Custom Designed Web Sites
  • Personal Computers, Servers, Macs, Linux, Windows XP, Windows Vista, Windows 2000, Windows 2003
  • Multi Location On Site Computer Support
Serving Chicago and Chicagoland suburbs which includes Oak Park, River Forest, Maywood, Bellwood, Hillside, Berkely, Melrose Park, Stone Park, Northlake, Elmwood Park, River Grove, Franklin Park, Bensenville, Harwood Heights, Norridge, Shiller Park, Rosemont, Park Ridge, Des Plaines, Niles, Mount Prospect, Prospect Heights, Arlington Heights, Rolling Meadows, Schaumburg, Elk Grove Village, Hoffman Estates, Palatine, Lincolnwood, Evanston, Skokie, Wilmette, Winnetka, Northfield, Morton Grove, Glenview, Northbrook, Wheeling, Buffalo Grove, Deerfield, Highland Park, Highwood, Lake Forest, Lincolnshire, Long Grove, Lake Zurich and beyond since 1996.

GCS is a Chicago, Illinois based computer outsourcing, Chicago computer service, and Chicago computer repair company that delivers top quality Chicago computer service, Chicago computer repair, Chicago computer maintenance, Chicago phone systems, Chicago Network Services, global server monitoring, and support for the 773, 312, 847, 630, 708 and 815 area codes in Illinois.  We also perform global website design web hosting and global SEO services to business and home business.  Our ability to deliver top quality IT and computer outsourcing, Chicago computer service, Chicago computer repair in Chicago and its surrounding areas has earned us top rank with our valued customers. Outsourcing computer, Chicago computer repair, Chicago computer repair, and IT computer services is the key to savings in 2010 and the years to come.  When you think of GCS, think 'computer services Chicago, Evanston, Skokie, Wilmette, Winnetka, Northfield, Morton Grove, Glenview, Northbrook, Wheeling, Buffalo Grove, Deerfield'.

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  Skokie Location:
5152 Main Street
Skokie, IL 60077
Tel: (847) 763 0763
Fax: (847) 763 1308

  Chicago Location:
77 W Washington St. Suite 719
Chicago, IL 60602-2803
Tel: (312) 739 2427
Fax: (847) 763 1308

Woodridge Location:
2940 Jonquil Ln
Woodridge, IL 60517
Tel: (847) 972 2062


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Great Computer Systems is Microsoft Gold Certified Partner in Chicago, Illinois