NAICS 23819 - Other Foundation, Structure, and Building Exterior Contractors

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What is NAICS 23819

NAICS code 23819 covers specialized contractors engaged in foundation, structural, and exterior building work not classified elsewhere. This sector includes businesses that provide unique construction services, such as underpinning, concrete foundation repairs, and installation of exterior building components like siding and curtain walls. These contractors play a crucial role in the construction and maintenance of buildings by addressing specialized foundation and exterior structural needs. Government agencies contract these services to ensure the structural integrity, safety, and longevity of public buildings and infrastructure, often requiring expertise beyond standard construction capabilities. The diverse nature of these services supports a broad range of public sector projects, from schools and hospitals to military and federal office buildings.

Breakdown for NAICS 23819

  • Includes specialized foundation work not classified under general concrete contractors.
  • Covers exterior building components like siding, curtain walls, and exterior insulation.
  • Applies to both new construction and repair or renovation of existing structures.
  • Small business size standard is generally $30 million in average annual receipts.
  • Services support construction and maintenance of public sector buildings and infrastructure.

Included Activities for NAICS 23819

  • Installing and repairing concrete foundations and footings.
  • Applying exterior siding and cladding systems.
  • Underpinning and stabilization of existing building foundations.
  • Installing curtain wall and exterior glazing systems.
  • Performing structural repairs to building exteriors.
  • Applying exterior insulation and waterproofing materials.
  • Reinforcing and retrofitting foundations for seismic or load requirements.

Business Types for NAICS 23819

  • Specialized foundation contractors
  • Exterior siding and cladding contractors
  • Structural repair and retrofit firms
  • Concrete foundation specialists
  • Small and medium-sized construction subcontractors

Government Buyers for NAICS 23819

Federal, state, and local government agencies commonly procure services under NAICS 23819 to maintain and enhance public facilities. Agencies such as the General Services Administration (GSA), Department of Defense (DoD), Department of Veterans Affairs (VA), and state transportation departments frequently require these specialized contractors. These agencies need reliable foundation and exterior building services to undertake repairs, renovations, and new construction projects that meet stringent safety, durability, and regulatory standards. By outsourcing to specialized contractors, government entities ensure compliance with construction codes and optimize lifecycle costs of public assets.

Contract Types & Procurement for NAICS 23819

Contracts awarded under NAICS 23819 typically include firm-fixed-price, indefinite delivery/indefinite quantity (IDIQ), and time-and-materials contracts, depending on the project's scope and complexity. Procurement methods often involve competitive bidding, including sealed bids and negotiated procurements, with some sole-source awards for highly specialized services. Contract values vary widely, ranging from smaller maintenance and repair contracts valued at tens of thousands of dollars to large-scale construction projects exceeding several million dollars. Government contracting officers emphasize compliance with performance standards, quality assurance, and timely project completion in awarding contracts in this sector.

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