About Us

Diedrich Technologies, a division of Sandell Construction Solutions, is the nation’s leader in high-performance detergent products for building restoration and maintenance. When restoring old or new masonry construction, there are still some contractors who resort to surface-damaging old standbys like sandblasting or muriatic acid. But Diedrich’s advanced masonry cleaning products are specifically formulated to safely - and cost-effectively - reveal the beauty underneath all the built-up grime and paint.

Cleaning and restoring masonry with the correct Diedrich product also prevents mechanical deterioration of masonry surfaces, ensuring surface integrity and increasing the life of the building structure.

Diedrich detergent processes are approved for cleaning buildings on the National Register of Historic Places, and are ideal for countless historical restoration challenges from clay masonry cleaning to paint removal. Diedrich has been in business for over 35 years, and has sales representatives serving throughout the United States. Its products ship to over 2000 nationwide distributors.

In addition to our fine cleaning products, Diedrich offers:

Excellent technical support, including our toll-free number
and knowledgeable support staff for all inquiries;
Free on-site training and technical support;
Customer support, with on-site visits;
Four nationwide distribution centers;
And more!

We make the products that make your masonry cleaning, restoration and water repellent projects work. Diedrich cleaning and restoration products are ideal choices for restoring buildings of any age. The products are approved by state preservation officers throughout the country and have been specified and used on over 500 important buildings on the

National Register of Historic Places, including:
Union Station – Washington, D.C.
Blatz Brewery – Milwaukee, WI
Captain Frederick Pabst Mansion (Pabst Brewery) – Milwaukee, WI
Alexander Graham Bell House – Washington, D.C.
Historic Willard Hotel – Washington, D.C.
Eisenhower Farm – Gettysburg, PA
Wilbur & Orville Wright House – Dayton, OH
Historic State Capitol – Tallahassee, FL
President U.S. Grant’s Home – Galena, IL
Historic Ryman Auditorium, Home of the Grand Ole Opry 1943-1974 – Nashville, TN
B&O Warehouse, Oriole Park of Camden Yards – Baltimore, MD
Shadyside Presbyterian Church – Pittsburgh, PA
Johnson Wax Headquarters, Frank Lloyd Wright, Architect – Racine, WI
Veterans Administration Hospital (GSA) – Milwaukee, WI