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G&J Customized Security Systems provides service in the Howard County, MD area. We specialize in installing low-voltage security system products for residential and commercial spaces. Protect your home or business with our personalized security solutions - become a customer today! Listed below are the cities and communities we commonly serve. 

  • Clarksville 

  • Columbia 

  • Cooksville 

  • Ellicot City 

  • Elkridge 

  • Glenwood

  • Lisbon 

  • Marriottsville 

  • Woodstock

If you are interested in having any of these security system products installed in your home or business, please click the "Request a Free Estimate" button to submit your inquiry via email. G&J looks forward to assisting you!

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