NAICS UNIVERSITY · Free research for insurance agents
Electrical Contractors and Other Wiring Installation Contractors
NAICS 238210 · United States · 2022 edition
This industry comprises establishments primarily engaged in installing and servicing electrical wiring and equipment. Contractors included in this industry may include both the parts and labor when performing work. These contractors may perform new work, additions, alterations, maintenance, and repairs.
Start the review with completed operations.
For Electrical Contractors and Other Wiring Installation Contractors, the saved research highlights completed operations, employee injuries, premises liability at client sites. Confirm how these arise in the actual operation, what controls are used and whether additional services change the proposed coverage.
Questions to ask
- What types of projects make up the bulk of the work — residential service calls, new commercial construction, industrial facilities, or low-voltage specialty systems?
- Is any work performed on energized or high-voltage systems, or in hazardous classified locations such as refineries or chemical plants?
- How much of the work is subcontracted out, and does the insured require certificates of insurance from subs?
- Are there any design, consulting, or commissioning services provided beyond pure installation?
- Does the contractor also sell alarm systems, provide monitoring services, or perform security system maintenance — or is it installation only?
- What is the total value of tools and equipment regularly transported to job sites, and is any equipment left on-site overnight?
- What are the largest single projects by contract value, and do those contracts include indemnity agreements or minimum insurance requirements?
- What is the prior loss history, particularly any completed-operations, fire, or electrocution-related claims?
Activities described by this code
- Airport runway lighting contractors
- Fiber optic cable (except transmission line) contractors
- Alarm system (e.g., fire, burglar), electric, installation only
- Highway, street, and bridge lighting and electrical signal installation
- Audio equipment (except automotive) installation contractors
- Home automation system installation
- Lighting system installation
- Cable television hookup contractors
- Telecommunications equipment and wiring (except transmission line) installation contractors
- Computer and network cable installation
- Traffic signal installation
- Environmental control system installation
- Cable splicing, electrical or fiber optic
Other activities to examine
- Installing and maintaining telecommunications lines performed by telecommunications companies: 517 — Telecommunications
- Installing and maintaining electric power lines performed by electric utility companies: 2211 — Electric Power Generation, Transmission and Distribution
- Constructing power and communication lines: 237130 — Power and Communication Line and Related Structures Construction
- Burglar and fire alarm installation combined with sales, maintenance, or monitoring services: 561621 — Security Systems Services (except Locksmiths);
- Retailing and installing automotive audio equipment: 441330 — Automotive Parts and Accessories Retailers
Census classification reference
For educational purposes only. AI-generated insurance research and automated logic can contain errors. Independently verify classification and coverage decisions.
Compare another operationInsurance operations research — draft
Electrical contractors install, maintain, and repair wiring, fixtures, panels, and related electrical systems in residential, commercial, and industrial structures. Day-to-day work typically involves running conduit, pulling wire, installing panels and breakers, connecting fixtures and devices, and performing inspections and service calls. Specialty subsets may focus on low-voltage systems — data cabling, fire alarm, security, home automation, or fiber optic installation — rather than line-voltage work.
Questions to investigate
- What types of projects make up the bulk of the work — residential service calls, new commercial construction, industrial facilities, or low-voltage specialty systems?
- Is any work performed on energized or high-voltage systems, or in hazardous classified locations such as refineries or chemical plants?
- How much of the work is subcontracted out, and does the insured require certificates of insurance from subs?
- Are there any design, consulting, or commissioning services provided beyond pure installation?
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.