Testing before the ceiling is touched
Who samples? For a house or small building (four units at most), the owner or a Cal/OSHA-certified consultant can. What gets sampled? Acoustic ceiling material and acoustic plaster, before anything is removed or disturbed. What if it is positive? Friable texture above 1% asbestos is regulated, so it is taken down wet within containment and disposed of as asbestos waste.
Regulated ceiling that reaches 100 square feet, or any removal done dry, requires notice and a job number; a single living-room ceiling can get there. Houses of up to four units can pay extra to start 72 hours after notice rather than after ten working days. Ceiling area and height, drywall removal, access and furniture, and the waste class decide the cost.
A room with a suspect ceiling can have other suspect surfaces. Floors, ducts and walls may need samples too, and asbestos abatement before remodel or demolition handles them as one project. See the Hayward Asbestos Removal homepage for every service.