Industry Guide

Commercial Insurance for Construction Companies and General Contractors

Construction companies face the broadest insurance requirement of any commercial sector — GL, WC, builders risk, commercial auto, inland marine, and umbrella must all be coordinated correctly. WC payroll classification errors are the most common and most expensive underwriting mistake in construction. The completed operations tail — coverage for claims that arise from projects completed years ago — is the most frequently overlooked coverage gap. And the umbrella limits required by GC contracts in commercial construction make adequate excess limits a business requirement, not an optional upgrade.

Coverage construction companies and general contractors typically need

Commercial General Liability

The cornerstone coverage for any construction company. Covers bodily injury and property damage during construction operations — a subcontractor who injures a homeowner during work, a falling tool that strikes a bystander, property damage to an adjacent building from demolition vibration, or damage to an existing structure during renovation work. The products-completed operations component is essential for construction: a defective foundation, a leaking roof, or a structural failure discovered after project completion creates completed operations claims that can arrive years after the project was finished. GL limits of $1M/$2M are standard; many commercial projects require $2M/$4M or higher.

Workers' Compensation

Construction is the most WC-intensive industry in the United States. Falls from heights, struck-by incidents from falling materials and equipment, caught-in/caught-between incidents with machinery, electrocution from power lines and energized equipment, and overexertion injuries are the five leading causes of construction fatalities. WC rates for construction classifications reflect this catastrophic loss frequency. Accurate employee vs subcontractor reporting, complete payroll by classification, and prior WC loss history are critical underwriting inputs for every construction submission.

Builders Risk

Covers structures under construction against fire, storm, theft, vandalism, and collapse during the construction period. Builders risk is a specialty property form for construction projects — standard commercial property does not cover a building during the construction phase. Builders risk must be written for the completed project value, not the construction contract amount (which may not include land value or existing structure value in renovation projects). Projects must be reported to the carrier during construction and the policy must be extended to cover delayed completion or change orders.

Commercial Auto

Construction fleets typically include pickup trucks, work vans, flatbeds, dump trucks, and in some cases cranes or specialized equipment that operates both on job sites and on public roads. Commercial auto for construction companies must cover the entire fleet at adequate liability limits. Contractors who use personal pickup trucks for work operations need commercial auto — personal auto policies exclude business use. Driver MVR records and vehicle loss history are key underwriting inputs.

Inland Marine (Equipment Floater)

Covers construction equipment and tools at job sites and in transit — excavators, backhoes, compactors, concrete equipment, scaffolding systems, power tools, and specialty equipment. Standard commercial property covers equipment at the described premises only. An inland marine equipment floater covers equipment wherever it is — on a job site, in a company yard, or in transit between locations. Equipment values for mid-size construction companies often exceed $500,000.

Commercial Umbrella

Construction projects routinely require umbrella limits of $5M to $25M or higher in GC contract requirements. A severe construction accident — multiple workers killed in a trench collapse, a construction crane that fails and strikes an adjacent occupied building, or a fire that spreads from a construction site to neighboring structures — can produce damages that dwarf standard GL limits. Commercial umbrella is not optional for any construction company working on commercial or large residential projects.

ACORD forms for construction company and general contractor submissions

ACORD 125 — Commercial Insurance Application

Primary submission document for construction company accounts. Capture contractor type (GC, specialty subcontractor, or both), work types (new construction, renovation, tenant improvement, commercial, residential), geographic scope, annual gross revenues, subcontractor usage and certificate of insurance practices, and prior loss history for 5 years.

ACORD 126 — Commercial General Liability Section

Required for GL. The description of operations is the most critical field on the GL application for construction accounts. Underwriters need to understand exactly what work the contractor performs — framing vs finish carpentry vs foundation vs grading are dramatically different risk profiles. The percentage split between new construction, renovation, and commercial vs residential work, and the maximum single project value, are also required.

ACORD 130 — Workers Compensation Application

Required for WC. Construction WC submissions must accurately classify payroll by trade classification — carpenter (5403), laborer (5606), equipment operator (5223), ironworker (5040), etc. Each classification carries a different rate reflecting its injury frequency. Misclassifying workers to lower-rate categories is a material misrepresentation. Prior WC loss runs for 5 years are required. Experience modification factor (EMR) is calculated from the prior 3 years and affects cost significantly.

ACORD 140 — Property Section

Required for builders risk. Each project must be reported separately with the completed project value, project start and expected completion dates, construction type, location, sprinkler status, and any unusual exposures (height, slope, proximity to water). The completed project value — not the construction contract amount — is the correct insured value for builders risk.

Key underwriting questions for construction company accounts

→Is the company a general contractor, a specialty subcontractor, or both?

→What types of construction work does the company perform — new commercial construction, residential, tenant improvements, renovation, demolition?

→What is the percentage split between residential and commercial work?

→What is the maximum single project value the company has performed or is likely to perform?

→What is the annual gross revenue from construction operations?

→What percentage of work is subcontracted vs self-performed?

→Does the company require certificates of insurance from all subcontractors before work begins?

→Does the company perform any work on structures over 3 stories in height?

→Does the company perform any excavation, trenching, or foundation work?

→Does the company operate cranes or other large lifting equipment?

→What is the value of construction equipment owned or leased — excavators, lifts, specialty equipment?

→Does the company work in multiple states?

→What is the current WC experience modification factor (EMR)?

→Has the company had any OSHA citations or compliance issues in the last 3 years?

→Has the company had any fatalities or serious WC claims in the last 5 years?

Common submission mistakes for construction company accounts

Inaccurate payroll and classification reporting on the WC application

WC for construction is rated entirely on payroll by classification. A company that reports all workers under a low-rate classification (clerical or general laborer at a lower rate) when many workers should be classified as carpenters, ironworkers, or operators at higher rates produces a material misrepresentation — and an audit that charges significant additional premium. Worse, classification errors affect coverage: if a worker's actual duties match a higher-rated classification that was omitted from the application, the WC carrier may dispute coverage for a claim arising from that classification. Every worker's primary job duties must be accurately classified before the WC application is submitted.

Not requiring certificates of insurance from all subcontractors

A general contractor who uses uninsured or underinsured subcontractors bears the consequences when those subs injure workers, damage property, or complete defective work. The GC's GL carrier will add uninsured sub payroll to the GL audit and charge additional premium. The GC's WC carrier treats uninsured sub workers as employees and charges WC premium on their payroll. Most critically, if an uninsured sub's worker is injured, the injured worker may have no WC coverage and may sue the GC directly. Certificate of insurance collection from every subcontractor, with limits that match the project requirements, must be a documented and enforced business process.

Building completed projects into GL limits without confirming completed operations tail

Construction GL claims frequently arrive long after a project is complete — a foundation that settles and cracks three years after the project is finished, a roof that leaks during the third winter after installation, or a deck that collapses five years after construction. The GL products-completed operations coverage must be confirmed to include adequate limits for the completed operations exposure, and the policy must remain in force or the completed operations tail must be purchased when the policy is cancelled. GC contracts often require completed operations coverage for 3–5 years post-completion. If the GL policy lapses or is cancelled without a tail, all completed operations claims from prior projects are uninsured.

Writing builders risk at contract value rather than completed project replacement cost

Builders risk must be written at the completed project's replacement cost value — not the construction contract amount. For new construction, the contract amount often equals or approximates the completed value. But for renovation projects, the existing structure's value (which was not part of the construction contract) must also be included. For projects with owner-furnished equipment or owner-furnished materials, these items may need to be added to the builders risk. And for projects with anticipated change orders or scope increases, the builders risk limit must be updated to reflect the actual completed value — a static limit that was set at contract signing may be inadequate after significant scope additions.

Complete construction company submissions in one workflow

AgencyAssist captures contractor type, work classifications, project values, subcontractor practices, equipment inventory, and 5-year loss history through one intake link. ACORD forms generated automatically.

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