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      Details
      HoursCLOSED NOW
      Regular Hours:
      Mon - Fri

      Contact Info

      Phones:

      Main - 301-797-1709

      ExtraTollFree - 800-664-8273

      Extra - 301-797-1280

      Extra - 240-527-2002

      Extra - 301-393-5648

      Address:
      1216 Sherman Ave Hagerstown, MD 21740
      Links:

      http://www.glessner.net

      https://www.glessner.net

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      Categories
      Security Equipment & Systems Consultants, Fire Alarm Systems, Fire Alarm Systems-Wholesale & Manufacturers, Security Control Equipment-Wholesale & Manufacturers, Security Control Systems & Monitoring
      Brands
      First Alert, Honeywell, Iwatsu, Telecom, access
      AKA

      Glessner Alarm & AMP

      Glessner Alarm & Communication Systems

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      Data provided by one or more of the following: Thryv, Data Axle, Yext.