Also known as: GL · CGL · Commercial General Liability · GL Insurance
Core business insurance that covers third-party bodily injury, property damage, and personal/advertising injury claims.
General Liability (GL) insurance—formally called Commercial General Liability (CGL)—is the foundational coverage most businesses need. It covers claims from third parties for bodily injury (e.g., a client slips at your office), property damage (e.g., you damage a client's equipment), and personal & advertising injury (e.g., defamation). GL is typically the first policy required by landlords, clients, general contractors, and contract partners before you can start work, sign a lease, or onboard as a vendor.
Almost every business that interacts with clients, rents space, or works on-site needs GL. It's especially urgent for contractors and trades (electricians, plumbers, HVAC), cleaning and janitorial services, landscaping companies, event planners, property maintenance firms, warehouse and logistics vendors, and any business that signs contracts requiring proof of insurance. If someone has asked you for a COI, you almost certainly need GL.
GL covers three main categories: (1) Bodily injury—a third party is physically hurt because of your operations (e.g., a visitor slips at your job site). (2) Property damage—you damage someone else's property during your work. (3) Personal & advertising injury—claims like defamation or copyright infringement in your advertising. GL does not cover your own injuries (that's Workers' Comp), your own property, or professional errors (that's E&O).
The most common requirement is $1,000,000 per occurrence / $2,000,000 general aggregate. Some enterprise clients or general contractors require higher limits—$2M/$4M or even $5M. If a contract requires limits above your GL policy, you may need an Umbrella or Excess Liability policy to bridge the gap.
Turnaround times vary by broker and carrier. Some brokers can provide a GL quote within 1–2 business days and bind coverage the same day. Once bound, a Certificate of Insurance (COI) with Additional Insured and Waiver of Subrogation endorsements can often be issued within hours. This is critical when a client or GC needs proof of insurance before you can start work.
Industries where COI requests are constant include: contractors and trades (electricians, plumbers, HVAC, roofers), cleaning and janitorial services, landscaping and lawn care, event planning and hospitality, property maintenance and facilities management, warehouse and logistics vendors, IT consulting and staffing, and marketing and creative agencies. In these industries, you often can't start a job without a current COI on file.
Definitions are educational and may be modified by your specific policy language, endorsements, and state rules. For regulatory guidance, refer to the California Department of Insurance or the NAIC.
Last updated: July 2026.