Asbestos is deemed a hazardous material. When about to start the demolition process, you should test the materials for the presence of asbestos. If that testing results in a positive result, then CVE can come remove and dispose of the hazardous material. CVE is a licensed contractor that has a special license that allows us to properly and safely remove the dangerous material.
Lead is a hazardous material and must be removed by a licensed contractor. Lead was used in many surface coatings and when it deteriorates or is disrupted by a renovation must be removed and disposed of safely without exposing any other areas.