Special trade contractors primarily engaged in the wrecking and demolition of buildings and other structures, except marine. They may or may not sell material derived from demolishing operations. Establishments primarily engaged in marine wrecking are classified in Transportation, Industry 4499.
- Concrete breaking for streets and highways-contractors
- Demolition of buildings or other structures, except marine-contractors
- Dismantling steel oil tanks, except oil field work-contractors
- Wrecking of buildings or other structures, except marine-contractors