Frontline Defense

Frontline Defense Systems Inc. is the world’s only manufacturer of the patented full-length interlocking astragal door lock, known as the Interlocker for short. The Interlocker is the simplest, most basic method available to secure your property from forced access. Designed for both out-swing and in-swing doors, Frontline’s latch protectors are offered in both aluminum and steel, available in several standard colors, and can be customized to fit any size of door.

Features:

• A secure door will deter the majority would-be property criminals and prevent your property from being an easy target.
• Safer residential properties mean greater tenant satisfaction and lower turnover rates.
• Property crime simply breeds more property crime. Safer buildings encourage would-be burglars to go elsewhere.
• Secure doors are a smart cost-saving investment any business or property owner.
• Our interlockers are customizable to virtually any door and are quick and easy to install, causing little if any disruption to your business.