A Pye-Barker Fire & Safety Company, Keystone offers a full range of fire protection services and life safety solutions including fire sprinkler inspection, fire alarm testing, fire extinguisher maintenance, and fire suppression system installation. We service Pennsylvania, New Jersey and Delaware. Whether we're designing, testing or servicing your fire protection system, we make the process easy. We recognize that understanding fire protection can be difficult, so our goal is to be empathetic to your position, making the process as painless for you as possible. We do this through our customer-first approach. Our Client Connect Web Portal and Life Safety Lifeline web chat are just two ways we make Life Safety Simple