NAICS UNIVERSITY · Free research for insurance agents

Drywall and Insulation Contractors

NAICS 238310 · United States · 2022 edition

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. Establishments primarily engaged in providing firestop services are included in this industry.

Activities described by this code

• Acoustical ceiling tile and panel installation
• Lathing contractors
• Drop ceiling installation
• Plastering (i.e., ornamental, plain) contractors
• Drywall contractors
• Soundproofing contractors
• Firestop contractors
• Fresco (i.e., decorative plaster finishing) contractors
• Taping and finishing drywall
• Gypsum board installation
• Wall cavity and attic space insulation installation

Other activities to examine

• Applying stucco: 238140 — Masonry Contractors;
• Insulating pipes and boilers: 238290 — Other Building Equipment Contractors

Census classification reference

For educational purposes only. AI-generated insurance research and automated logic can contain errors. Independently verify classification and coverage decisions.

Insurance operations research — draft

Drywall and insulation contractors install, tape, and finish gypsum board on walls and ceilings; apply plaster and ornamental finishes; install acoustical tile and drop ceiling systems; and install wall cavity, attic, and building envelope insulation. Work is typically performed at client jobsites — residential new construction, remodels, or commercial and institutional build-outs. Some operations specialize in firestop systems, soundproofing assemblies, or spray-applied insulation.

Questions to investigate

• What types of projects does the insured primarily work on — residential new construction, residential remodel, light commercial, or large commercial and institutional?
• Does the operation include any firestop or fire-rated assembly installation? If so, what project types?
• Is spray foam insulation applied, and what chemical systems are used?
• What percentage of work is subcontracted, and does the insured collect certificates of insurance from all subs?

This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.

Classification workflow · Multiple-operation workflow