About CWS

Commercial Window Film Installation Company

Founded in the Washington, D.C. area in 1975, Commercial Window Shield has grown into the world’s leading installer of solar control and safety and security window films.

In its early years, the company was at the forefront of the first energy conservation movement. Striving to reduce their energy bills and create a more comfortable working environment for their employees, companies hired Commercial Window Shield to install solar control film on their buildings windows.


In 1986, after President Reagan ordered the bombing of Libya, Commercial Window Shield was hired for its first security film project by the United States Information Agency. Following the Oklahoma City federal building bombing in 1995, in which scores of people were killed or injured by flying glass, safety and security window films were developed. Soon after, Commercial Window Shield developed and patented an attached window film system called Blastightâ„¢ specifically used in the installation of security window films.

One of the company’s first assignments in the post-Oklahoma City bombing era was to install safety and security film on the Pentagon’s windows. When a commercial airliner crashed into the building on Sept. 11, 2001, killing more than 125 people, a Pentagon employee told reporters that scores of lives were saved because the windows were protected by security film. Within days, the Architect of the Capitol – the office in charge of design work for the U.S. Capitol and all House and Senate buildings – asked Commercial Window Shield to install safety and security film on the Capitol, the five buildings that comprise the U.S. House of Representatives, and the four Library of Congress buildings, among others. By Oct. 5, the company had 60 installers on location and all of the film installations were completed in 40 days in the largest project of this nature in American history.

Since then, Commercial Window Shield has become the world’s undisputed leader in the installation of safety and security window films. Our work can be seen on significant buildings from coast-to-coast, such as FBI, Veterans Administration, U.S. Labor and Transportation headquarters in Washington; Merrill Lynch and Ernst & Young headquarters, and Grand Central Terminal in New York City; O’Hare International Airport in Chicago; and the Houston Convention Center; not to mention more than two dozen American embassies around the world.


More recently, Commercial Window Shield is working with some of the country’s top commercial real estate and property management companies who are leasing space in their buildings to the General Services Administration. GSA lease renewal specifications require the building owners to install security window films in buildings where federal agencies are housed.

What sets Commercial Window Shield apart is not only its ability to handle a variety of window film installation projects but adapt to any complex situation and create a viable and effective solution.