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  • Custom Alarm Svc
    Custom Alarm Svc
    (508) 473-1028
    PO Box 58, 1756  Mendon

    Company History Sept 1974 - Custom Alarm Service was founded as a sole proprietorship by Roger Lavallee after several years with another security firm. We offered sales, service and installations of residential, commercial, industrial and municipal security systems.Aug. 1976 - Custom Alarm Service …