The Right People.
The Right Solutions.
Knight Security is a third-generation family owned and operated life safety and security company serving Westchester, Putnam and Connecticut since 1959.
Remote Services From your phone, you can control temperature, lighting, security and more! Real-time alerts, video viewing and mobile remote control put peace of mind in the palm of your hand.
Introducing The Knight Family Package! For a limited time, Knight Security Systems is offering a complete home security system for your home at our guaranteed low price!

Residential Home Security

For over 60 years, Knight Security Systems have been designing custom security systems for every budget and need.

Security For Your Business

Whether you’re looking to prevent theft or a management tool for your employees, Knight Security Systems can design a solution for you.

See Who’s Knocking

Turn your security system into a personal concierge service with a doorbell camera compatible with your security system and smartphone app.

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Call (914) 232-0003
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    Contact us today!



    Years in Business
    Knight Security is a third generation, family-owned and operated security company serving New York and Connecticut since 1959. Trust your home and business to a company that has established itself as the premier security systems company in Westchester and Fairfield Counties!


    Years of Experience
    Whether it’s our security consultants, install, or service departments, we have the expertise to get your alarm system done! From the first appointment all the way through to your routine security service check-ups, you will expect to see the highest level of expertise and professionalism.


    Customer Support
    No matter when or where, if you have an issue - we respond! Your family’s security is our number #1 priority, so make sure your security provider is up to the task!

    Security Systems in Westchester County, NY

    Homes and businesses are full of personal belongings, technology and expensive items. At any point, an intruder might try to break in to steal jewelry, money, important documents and more. However, you can stop an unfortunate incident by installing industry-leading panic alarm systems from Knight Security Systems.

    We believe that a residential or commercial space should be a safe spot for all. With more than 60 years of industry experience, our team serves Westchester County, NY, and surrounding locations with custom alarm solutions that make a difference in an emergency. From unexpected fires to an open door, our cutting-edge systems help you identify a security issue the moment something appears out of the ordinary.

    Your Premier New York Alarm Company

    Knight Security Systems separates itself from other alarm companies in the area with the ability to install, repair and maintain custom alarm and video systems. We give you the peace of mind you need to relax when you're away from home with an impressive inventory of wireless and hard-wired alarm systems for the home and office. No two residential or commercial buildings are exactly the same, so we learn your expectations to craft a solution that works for your routine.

    Whether you're searching for environmental sensors or burglar alarms for your Westchester, NY home, we've got you covered. Protect your family and coworkers with mounted cameras, remote monitoring features and beyond.

    Residential Alarm System Installation and Repair

    Our installers treat customers like family. If you have children, pets or frequent guests, Knight Security Systems will introduce you to in-home additions accessible from your mobile device. The days of using outdoor keypads are over, as we provide solutions that keep you in control of your residential property.

    Take note of sudden changes in the home with features you can use anywhere, such as:

    • Remote door entry (ideal for your kids and neighbors)
    • Preset schedules for thermostats, locks and lighting
    • The ability to manage garage doors from your phone
    • Day and night vision cameras
    • Monitored smoke detectors

    We're with you through the installation process and can return at any convenient time. If a camera goes out or you have trouble with calibrating equipment, we're here with timely repair and maintenance appointments.

    Commercial Alarm System Repair and Installation

    Local businesses are a frequent target for breaking and entering. Thieves can determine your hours of operation and act during the night. Fortunately, we help you deter unwanted visitors with everything necessary to manage security remotely. We install cameras and introduce you to a user-friendly mobile app to record footage.

    Be the first to know of environmental changes and potential threats to your commercial space. Our installers cater to the following industries in Westchester County:

    • Retail
    • Construction
    • Local and state municipalities
    • Automotive dealers and shops
    • Warehousing and industrial facilities
    • Colleges, universities and local school districts
    • Pharmaceuticals

    Upgrading Your Alarms and Security System

    For a residential or commercial alarm system to work, you need an experienced installer. Our professionals drive out to your location with the correct tools and resources for a quick and clean install. We'll assist with mobile app configurations and can walk you through special features with settings according to your preference.

    Schedule repairs and maintenance appointments throughout the year for long-term results.

    Contact Knight Security Systems for an Alarm Quote

    Are you interested in updating or adding a home burglar alarm to your Westchester, NY, home or office? Look no further than Knight Security Systems for technology sales, installations and outstanding customer service. For more information about our products and services or for a security alarm quote, complete our contact form online.