Excavation and Site Preparation After Demolition Use the Same Contractor for Demolition of the Old Structure and Site Preparation for the New Structure Demolition projects typically involve some excavation work as well. For instance, house demolition is usually in advance of building another home on the same lot. After demolition, an excavating contractor needs to grade the site and prepare it for building another home. If the home has a basement, then an excavation contractor will dig the basement. The good news is that the same contractor that demolished the home usually has the experience, qualifications, and equipment to do any excavation work required on the site as well. In most cases, the equipment to perform the work, such as a backhoe or hydraulic excavator, are already on site. Working with one company for both demolition and excavation work can reduce the complexity of your project, keep it running faster, and often reduce your overall price because you're getting a package deal. Common Excavation Services from Demolition Contractors Site clearing Grading Site preparation Debris removal Basement excavation General excavating Swimming pool excavation Foundation excavation Trench excavation Retaining walls Septic systems. Common Excavation Services from Demolition Contractors Site clearing Grading Site preparation Debris removal Basement excavation General excavating Swimming pool excavation Foundation excavation Trench excavation Retaining walls Septic systems