NAICS 23821 - Electrical Contractors and Other Wiring Installation Contractors

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What is NAICS 23821

NAICS code 23821 encompasses Electrical Contractors and Other Wiring Installation Contractors who specialize in installing, maintaining, and repairing electrical systems and wiring. Businesses operating under this code provide critical services for residential, commercial, industrial, and institutional buildings, including power distribution, lighting, communication systems, and control wiring. These contractors ensure electrical systems comply with safety codes and are designed for efficiency and reliability. Government agencies contract these services to support infrastructure development, facility maintenance, and modernization projects that require professional electrical expertise.

Breakdown for NAICS 23821

  • Covers businesses installing and servicing electrical wiring and systems in various building types.
  • Includes residential, commercial, institutional, and industrial electrical contracting services.
  • Applies to contractors who comply with national and local electrical codes and standards.
  • Typical projects range from new construction wiring to upgrades and system maintenance.
  • Small business size standard is generally 500 employees or fewer.
  • Services support government infrastructure, safety, and energy efficiency requirements.

Included Activities for NAICS 23821

  • Installation of electrical wiring, conduits, and fixtures.
  • Repair and maintenance of electrical power systems and lighting.
  • Installation of communication and data wiring systems.
  • Upgrading electrical panels and circuit breakers.
  • Testing and inspection of electrical systems for code compliance.
  • Integration of renewable energy electrical components.
  • Installation of security and fire alarm wiring.
  • Coordination with other trades during construction projects.

Business Types for NAICS 23821

  • Independent electrical contracting firms.
  • Subcontractors specializing in wiring installation.
  • Small and minority-owned electrical businesses.
  • Large electrical construction companies.
  • Service providers for government facility maintenance.
  • Specialty contractors focusing on energy-efficient systems.

Government Buyers for NAICS 23821

Federal, state, and local government agencies frequently procure services under NAICS 23821 to support public infrastructure projects such as schools, hospitals, military bases, transportation hubs, and government office buildings. Agencies like the Department of Defense, General Services Administration, and state Departments of Transportation rely on electrical contractors to ensure safe and reliable electrical installations that meet regulatory standards and energy efficiency goals. These services are essential to maintain operational readiness and public safety within government facilities.

Contract Types & Procurement for NAICS 23821

Contracts under this NAICS code often include firm-fixed-price, cost-reimbursement, and indefinite-delivery/indefinite-quantity (IDIQ) contracts. Procurement methods commonly utilized are competitive sealed bidding, negotiated procurements, and small business set-asides, reflecting the diverse needs of government projects. Contract values vary widely from small maintenance or repair jobs to large-scale installations for new construction or major renovations, ranging typically from tens of thousands to several million dollars.

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