We developed and implemented treatments for the cleaning and restoration of marble steps, mosaic tile floors, scagliolo plaster columns and wainscot and…  

The Memorial and Museum commemorates the contribution of African American soldiers and sailors who served in the Civil War. The memorial includes…  

The US Department of Justice building was built between 1933 and 1935 as part of the Federal Triangle development known as the…  

The US Department of Justice building was built between 1933 and 1935 as part of the Federal Triangle development known as the…  

This work is characteristic of the fine craftsmanship and pleasant whimsical lighness of 18th century French sculpture and decorative arts. Built into…  

The Department of Veterans Affairs building, located in Washington, DC, is a limestone clad structure built in 1916. We performed stabilization and…  

The directory cases at the Environmental Protection Agency (EPA), Washington, DC are a distinctive part of the building’s historic design scheme. The…  

Established in 1851 following the Mexican-American War, the Armed Forces Retirement Home, Washington, DC (AFRH) is now home to four National Historic…  

We were contracted by the Architect of the Capitol to perform conservation treatment and maintenance on the metalwork of the north and…  

In 2010, as part of an IDIQ contract with The National Park Service for work on the National Mall, we began a…  

The National Academy of Sciences is located along the National Mall in Washington, D. C. Designed by Bertram Goodhue, it was completed…  

The National Academy of Sciences is located along the National Mall in Washington, DC. Designed by Bertram Goodhue, it was completed in…  

The US Department of Commerce Building was constructed in 1932 at the intersection of 14th Street and Constitution Avenue, NW, spanning three…  

The American Pharmacist’s Association building is one of a number of monumental headquarters that line Constitution Avenue in Washington, DC. This classically-inspired…  

We were contracted by the Architect of the Capitol to perform conservation treatment and maintenance on several architectural elements, including the two…  

The United States Capitol Grounds is located on a 58-acre park that was landscaped by Frederick Law Olmsted during the period of…  

This bronze temple bell with an ornate iron hanger dates to the nineteenth century and is thought to originate from Cambodia or…  

The United States Capitol Building stands as a monument to the innovation, skill, and pride of the American people. On September 18,…  

We were contracted by the Scottish Rite for Freemasonry to perform bronze conservation treatment and bronze refinishing on the cast bronze night…  

The south National Mall-facing entrance at the Smithsonian’s National Museum of Natural History has massive cast iron night gates intended to seal…  

After its accidental discovery in 1997, Clara Barton’s Apartment and Missing Soldier’s Office was restored to become a museum. Prior to restoration, the apartment…  

Following a condition assessment survey completed in 2015, we were contracted to investigate areas of deteriorating concrete found on the sand bins…  

We were contracted by the National Gallery of Art to perform conservation treatment of the Andrew W. Mellon Memorial fountain located on…  

The Old Post Office on Pennsylvania Avenue in Washington DC was built at the end of the 19th Century within the Federal…  

From 2012-2013, we have acted as the consulting conservator to OLBN, Inc. For the restoration and conversion of Clara Barton’s boarding house…  

The Winder Building stands as one of Washington, DC’s oldest office buildings. Built in 1848 of brick and steel, just steps from…  

We were engaged by a private client to carry out conservation treatment on a Picasso “Corrida” ceramic plate that had undergone accidental…  

We were contracted to perform conservation treatments, photographic documentation, and provide maintenance recommendations for the library elevator dumbwaiter, pneumatic delivery system tubing,…  

The wall was removed and salvaged when it was removed, symbolically ending the division of Europe into the Eastern Block controlled by…  

One of the most dangerous aspects of the Cold War for the United States was maintaining accurate information about the on-going threat…  

The District of Columbia War Memorial was designed by the architect Frederick H. Brooke to honor the residents of Washington, DC, who…  

The District of Columbia War Memorial was completed in 1931 to honor the residents of Washington, DC who served in the First…  

Foreign visitors to The White House often stay at the Blair House, an ensemble of early 19th century brick buildings across Pennsylvania…  

The rare earthquake that roiled Washington, DC on August 23, 2011 caused damage to the historic limestone temple on 16th Street. This…  

The East Lobby is part of the Consumer Financial Protection Bureau Building in Washington, D. C. The lobby has been recently renovated…  

The 1860’s expansion of the US Capitol building included many high style rooms and corridors in the Senate (north) wing that were…  

Construction of the Carnegie Library in Mt. Vernon Square, Washington, D. C. Was completed in 1902. The symmetrical, Beaux-Arts building is constructed…  

Working as part of an inter-disciplinary investigative team, we conducted an exterior condition assessment survey for the John F. Kennedy Center for…  

The Hotel Monaco in downtown Washington, D. C. Was originally designed by Robert Mills, architect of the Washington Monument, in 1839, with…  

We were contracted by OLBN to perform mortar and interior paint sampling and analysis for the Wilbur and Orville Wright Federal Buildings…  

The Navy Museum in Washington, DC, owns a full scale version of the Fat Man atom bomb and its transport sled. The…  

The main atrium fountain at the James Madison Memorial Library of the Library of Congress, Washington, DC, consists of three abstract bronze…  

The Dominican Friars sought to reinstall two frescos in the rooms of their new house of studies opposite Catholic University. One depicted…  

After initial studies for the National Park Service, and development of conservation treatment plans and contract documents with KCCT Architects for the…  

Framing the White House in the main north-south axis at 16th Street and Constitution Avenue NW in Washington, DC, are the two…  

During renovations to convert the Old Post Office Building, located at 1100 Pennsylvania Avenue in Washington, DC, into a luxury hotel, a…  

The main hall of Holy Redeemer College in Washington, DC was designed in 1932 by architect Anthony F. A. Schmitt for the…  

We were commissioned to restore the carved stone mantle original to the school and located in the second floor library. The mantle…  

In 2010 we worked with HGA Architects for the Architect of the Capitol to conduct a feasibility study of the upgrading of…  

Tudor Place is one of Washington’s best-known historic house and gardens. Located in Georgetown Heights and completed in 1816, the house was…  

Built between 1931 and 1935, the Department of Justice, also known as the Robert F. Kennedy Building, melds Art Deco and Mediterranean…  

The US Holocaust Memorial Museum, located in Washington, DC, is a major institution dedicated to educating the public about the Holocaust. Designed…  

The Arts and Industries Building of the Smithsonian Institution, the second oldest building on the National Mall, underwent major renovations and maintenance…  

We were hired in 2011 by the US National Holocaust Memorial Museum to provide conservation services for the monumental bronze sculptures by…  

EverGreene reinforced the architect’s highly-polished, industrial aesthetic by designing & installing more than 100 cast plaster panels, each measuring 12’ x 3’,…  

The United States Capitol Building houses the two branches of Congress, the House or Representative on the south and the Senate on…  

Among the other effects of the unusual earthquake in 2011 to this landmark John Russel Pope building in Washington DC, the decorative…  

Designed by Henri-Leon Greber, four lead urns are mounted on limestone bases around the oval entrance drive of this Beaux-Arts mansion, designed…  

The National Law Enforcement Officer’s Memorial is an elegant and expansive memorial to the more than 20,000 officers killed nationwide in the…  

We were contracted by the Department of the Treasury to conserve the Reproduction Liberty Bell. The bell was transported to us’s studio…  

EverGreene has completed restoration work in both the Thomas Jefferson Building (including regilding the exterior flame on top of the dome) and…  

The Department of Veterans’ Affairs building, located in Washington, DC, is a limestone clad structure built in 1916. We were engaged to…  

A limestone gazebo with a cast iron lattice dome and stone pavers, column bases with sculptural lion heads, benches spanning between the…  

The US Holocaust Memorial Museum opened in April 1993 in Washington D. C. In recent years certain areas of the limestone cladding…  

The Ariel Rios Federal Building is part of the Federal Triangle complex in Washington, DC. The building, designed by Delano and Aldrich…  

The Founders Monument is a commemorative sculpture, dedicated to the four original founders of the Daughters of the American Revolution. Sculpted by…  

The National Law Enforcement Officer’s Memorial is an elegant and expansive memorial to the over 18,000 officers killed nationwide in the line…  

Bearing Witness is a significant piece by renowned sculptor Martin Puryear, located in the courtyard of the Ronald Reagan Building/International Trade Center.…  

The Slow Sand Filtration Plant was one of the many improvements introduced to the city of Washington as part of the McMillan…  

Several examples of modern sculptures by native artists are installed within the buildings and on the grounds of the Swiss Embassy complex…  

The historic Hotel Washington has been a fixture in downtown Washington, DC since its construction in 1917. Designed by the storied firm…  

Mullen Library is one of the hallmark buildings on the campus of the Catholic University of America, in Washington, DC. Built through…  

The Neptune Fountain consists of heroic scaled bronze figures of the sea god surrounded by nereids, nymphs and a menagerie of real…  

The Old DC Courthouse was designed by George Hadfield in 1820. It was originally constructed to serve as City Hall within the…  

Commissioned by President Ulysses S. Grant in 1887, the Old Executive Office Building (OEOB), previously known as the Dwight D. Eisenhower Executive…  

In April of 2015, we were contracted to remove a 16-foot painted text canvas mural and two painted spandrel panels located at…  

The Architect of the Capitol requested conservation of the Pan of Rohallion, a bronze sculpture and fountain with copper plumbing by Frederick…  

The Postal Square Building was built as a new Post Office to compensate for staff crowding when the newly completed Post Office…  

The Postal Square Building was built as a new Post Office to compensate for staff crowding when the newly completed Post Office…  

We were contracted to conserve three historic pens and associated documents significant to the history of the US Forest Service. The three…  

Quarters Six of the Marine Barracks located in Washington, DC is the US Marine Corp’s oldest active post. The location, mid-way between…  

We conserved plaster copies of sculptures by Luigi Persico that were made for the east facade of the US Capitol Building. The…  

The US Holocaust Memorial Museum complex consists of a modern exhibition hall (1989-1993) and the Ross Administrative Center (RAC), a brick, limestone…  

Carved of Italian Carrara marble in the mid-19th century, this statue represents the founder of the Dominican order preaching with his right…  

In the Smithsonian Castle gardens are two statues dedicated to prominent figures in the history of the Smithsonian Institution. The Joseph Henry…  

ST Thomas Church, in the DuPont Circle section of Washington, was built in the1880’s. It was severely damaged in a fire in…  

The Tang dynasty (A. D. 618-907), with its capital at Chang’an, is regarded by historians as a high point in Chinese civilization—equal,…  

Cardozo High School, known as Central High School from 1917-1950, is sited prominently on a ridge north of Florida Avenue in Washington,…  

She Who Must Be Obeyed was fabricated in 1975, and unveiled in 1976. The angled rectangular form is constructed of steel and…  

The Old Post Office Pavilion, functioning as an office building for much of the 20th century, is now the 263-key Trump International Hotel.…  

From 1944 to 1974, artist Allyn Cox created a series of ceiling murals in two corridors of the House wing of the…  

The Ulysses S. Grant Memorial anchors the east end of the National Mall in Washington DC, and is meant to balance the…  

Few structures are more iconic than the United States Capitol, and the building’s crowning feature is the neoclassical dome designed by Thomas…  

EverGreene conserved and replicated the trompe l’oeil decoration of Room S324- the senate majority leader’s office- in the US Capitol building. EverGreene…  

At the request of the Architect of the Capitol, our conservators performed a survey and condition assessment of selected exterior bronze elements…  

The Fairwater Sail is from the Submarine USS Balao (SS-285). The USS Balao served as the lead United States Navy Balao-class submarine…  

The Historic Congressional Cemetery was established in 1807 in the south- east quadrant of Washington, D. C. To serve as the final…  

We performed conservation treatment on the Venus stature, a cast lead figure upon a cast stone base. The figure, cast in Italy,…  

Conservators perform basic characterization of one mortar sample to guide recommendations for suitable replacement materials.  Mortar samples will be subjected to standard…  

We were contacted by the National Academy of Sciences to restore the west entry wood doors and bronze door surround and decorative…