NOTICE: Do not ship screens to us without calling us first.


Since 1985 National Security Screens has been a leading fabricator of Quality Alarmed Window Screens. We partner with Thousands of Alarm Companies to build the best perimeter security systems available for residential use. You can count on years of quiet dependable 24/7 service from our screens.


For over 30 years we have been developing new and innovative products to protect colleges, nursing homes, institutions and commercial facilities using our custom alarm mesh. Our products protect property from intruders as well as alerting staff when someone has left the property through an open window.


Our screens are used as the primary protection for many high profile and critical Government buildings. Our mesh provides protection when you need the free flow of air which makes it perfect for telecommunication or critical electronic protection as well as a variety of military applications including pill boxes or armory protection. Our screens can also be found on International Embassies as well as Diplomatic Residences.

Our Products

  • Security Screens
  • Frames
  • Plugs
  • Magnets
  • Switches

Security Screens Alarm Screens At National Security Screens we pride ourselves in fabricating the highest quality products in the industry. Our screens are manufactured using the best American made products available. We use UL specified techniques with quality American made components along with over 30 years of expertise to build the best alarm screen products […]

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Frame Styles National Security Screens carries three types of screen frames. Box Frames Box Frames are the most commonly used screen frame. Box frames are easily identified by their rectangular shape when looking at a cross cut section. These screen frames are made to be removed easily through a variety of attachment methods. (Spring Loaded […]

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National Security Screens offers two convenient ways to make your screens removable. If your customer wants to remove their screens for cleaning please choose from the two plug types below on your work order form.

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We offer several styles of magnets in three different colors to close our normally open magnetic contacts.

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Switches or Magnetic contacts are available for each screen. Our switches come in either spline reed switch style (under the spline) or recessed (pressed into the edge of the screen frame). Additional switches are available at a reasonable cost.

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