North American Industry Classification System (NAICS) Canada 2017 Version 3.0

• 23 - Construction
• 238 - Specialty trade contractors
• 2383 - Building finishing contractors

23831 - Drywall and insulation contractors

This industry comprises establishments primarily engaged in drywall, plaster work, and building insulation work. Plaster work includes applying plain or ornamental plaster, and installation of lath to receive plaster. The work performed may include new work, additions, alterations, maintenance, and repairs.