The core activity of Toni Heinzer GmbH encompasses three main areas:
1. **Excavation work**: Execution of excavation work, trenching, land corrections, demolitions, dismantling and other excavation work using a Volvo ECR 145E 16t crawler excavator and various attachments.
2. **Forestry work**: Execution of forestry work such as small-scale logging, clearing, logging area cleanup and support for forestry teams, as well as transportation of roundwood, firewood and equipment.
3. **Truck transport**: Execution of transportation services with two to five-axle trucks, loaded with wood, gravel, construction waste, palletized goods or machinery.