The New York Public Library's landmarked Fifth Avenue building was designed by architects Carrère and Hastings in 1897 and completed in 1911. In celebration of the iconic building's 100th anniversary, it was given a facelift with D/2, washing away years of dirt and grime.
There's no job too big for D/2. The ornamented facades of this 400,000 sq ft Chicago Landmark were cleaned from top to bottom with D/2.
D/2 has been used to clean thousands of monuments across the country, preserving our history for future generations.
More than 4 million people visit hallowed memorial each year. D/2 is used to keep its Yule Marble looking flawless.
Texans take the Alamo seriously. So, it's no small thing that they choose D/2 to keep it looking its best.
Frank Lloyd Wright's Taliesin estate is a shrine to many architects. Staff there use D/2 to combat biological growth.
D/2 is used by the VA to clean over 3.5 million headstones each year
The National Park Services trusts D/2 to keep America's iconic White House looking white.
The Heinrich Heine Memorial, also known as the Lorelei Fountain was designed and fabricated in Germany for erection in Dusseldorf. It ended up on the Grand Concourse in The Bronx in NYC where it was moved several times and heavily vandalized. In 1999 the Municipal Art Society raised funds for its restoration. D/2 Biological Solution was specified for its cleaning. Joan Berkowitz was the conservator and still gives the fountain a light D/2 maintenance spraying every other year.
The Jefferson Market Branch of the New York Public Library was designed by Frederick Clark Withers and Calvert Vaux and completed in 1877. Margot Gayle, EE Cummings and Lewis Mumford lead the effort to save it in the 1960s. Giorgio Cavaglieri was then hired by the NYPL to convert from a courthouse to one of its most unique branches. Mae West was tried for obscenity and Harry K. Thaw was convicted of the murder of Stanford White at the courthouse. More recently, Joan Berkowitz specified D/2 for exterior stone and masonry cleaning in 2010.