Guardian security screens originated in Las Vegas, Nevada as part of the company Security Assessment Group. Guardian specializes in security screen doors and windows for residential and commercial applications. We also offer armored doors, which are high-end fully customizable doors perfect for anyone wanting the ultimate in security door protection. Our security window film options offer clear and tinted security films that are perfect for detouring smash-and-grab burglaries in your home or business. The newest and most exciting product to our portfolio is our original Siege Security glass, an armored glass that protects against unwanted intruders inside your business.