Its business expanded during a construction boom after World War II, and was involved in numerous large demolition contracts.

[1] Tedo's son, Jim Loewendick, attributed the business's early success to World War II, saying "Adolf Hitler put the country on its feet".

A post-war construction boom in Columbus led to the development of highways and urban renewal, which created a need for demolition contracts.

S.G. Loewendick was significantly involved in that area in the 1960s, including demolishing hundreds of acres of housing for highway development.

By 1988, the company had a revenue of $5 million per year, owning two landfills, a roll-off container service for construction site dumpsters, and a tire shredder facility.

[4] Loewendick has demolished Columbus landmarks Union Station, the Ohio Penitentiary, the Christopher Inn, and the Deshler Hotel.

[1] The company also demolished the downtown Columbus City Center mall,[5] Franklinton's Veterans Memorial (since replaced by the National Veterans Memorial and Museum), a former location of the Columbus Africentric High School, and a Holiday Inn in the suburb of Worthington.

During a fire in the Short North in September 1988, Dave Loewendick helped a fireman out of debris, just before a four-story wall fell behind them.

[5] The company, originally involved in both construction and demolition, still focuses on reusing items, including salvaging architectural elements.

[4] The business's current owner, Dave Loewendick, is unconcerned about his reputation for demolition, envisioning a pile of rubble where office towers or shopping malls stand.

It was purchased by Nationwide Insurance Company president Dean Jeffers in order to demolish it, contrary to neighborhood redevelopment plans and a unanimous Columbus City Council resolution for the demolition to stop.