Keystone offers a full range of fire protection, security, communications, and life safety solutions for commercial and industrial organizations of all sizes in Pennsylvania, New Jersey, and Delaware. From system design and installation to testing and maintenance, we exceed the need.

  • Health Benefits

  • Work-Life Balance

  • Field Team Benefits

  • Paid Holidays

  • Learning & Development

  • Future Planning




Allentown, PA

Chester County, PA

Coatesville, PA

Delaware County, DE

Downingtown, PA

Doylestown, PA

Easton, PA

Exton, PA

Lancaster, PA

Lansdale, PA

North Wales, PA

North Wales, PA, PA

Quakertown, PA

Southeastern, PA

West Chester, PA