John Dreher's Colleagues at Sierra Group
John Dreher's Contact Details
888-880-4949
Menifee,California,United States
Sierra Group
John Dreher's Company Details
Sierra Group brings together three unique divisions, commercial construction, facilities maintenance, electronic security surveillance and business alarms, operating under one company. Our commitment, dependability and sensitivity to operational schedules, environments and cost effective solutions allow us to provide a total solution for all of your building maintenance needs.Our statewide licensed alarm and surveillance department is trusted by many of the top Fortune 500 companies and financial institutions. Services include installation and monitoring of commercial alarm and video systems. In conjunction, we are a full service data and phone cabling company.