Sonitrol Security of Delaware Valley

Sonitrol Security of Delaware Valley has been delivering advanced verified security protection since 1999, when it was founded by Karl Ottosen and Joe Allen. Serving Delaware, Southern New Jersey, and Philadelphia, the company is part of the broader Sonitrol Alarm Company network, which operates in over 180 cities throughout the U.S. and Canada. Sonitrol’s signature audio intrusion technology—integrated with access control—helps prevent false alarms and ensures that law enforcement responds only to confirmed events. Backed by praise from local police departments, the company offers strong guarantees, including a $10,000 warranty, six-month satisfaction coverage, four-hour service response, and a No False Alarm Guarantee, contributing to its high verified apprehension rate.