What Is General Liability Insurance – and Why Do Contractors Need It?
General liability insurance is one of the most important policies a business can carry. If you are a contractor, it is not just important – it is essential. Almost every commercial contract, lease agreement, and project owner will require proof of general liability coverage before you can start work. Understanding what this coverage does, what it does not do, and how the limits work gives you a real advantage when building your insurance program.
What General Liability Covers
General liability – sometimes called commercial general liability or CGL – protects your business against third-party claims in three main areas. The first is bodily injury. If someone who is not your employee gets hurt because of your operations, general liability is the coverage that responds. A property owner trips over materials left on a job site. A neighbor gets hit by debris during a demolition project. These are classic general liability scenarios.
The second area is property damage. If your work causes damage to someone else’s property, general liability is often the policy that comes into play. Your crew backs equipment into a client’s fence, or a water line gets punctured during framing and the resulting water damage ruins finished flooring below. That kind of resulting damage to another party’s property is where general liability responds.
There is also a critical piece called products and completed operations coverage. This applies to claims that arise after the job is done and your crew has left the site. A structural issue tied to your framing work shows up six months later. That completed operations exposure is a big deal for contractors, because much of the risk surfaces well after the project wraps up. It is worth noting that the cost to fix your own defective work may not be covered – the real coverage question is usually whether there was resulting damage beyond the defect itself.
The third area is personal and advertising injury, which covers situations like defamation or copyright infringement in your business advertising. This comes up less frequently for contractors, but it is part of the standard CGL policy.
What General Liability Does Not Cover
General liability is broad, but it has real boundaries. Your own employees’ injuries are not covered – that is workers’ compensation, which is a completely separate policy and is legally required in most states once you have employees. Your own tools, equipment, and property are also excluded. If your excavator breaks down or your tools get stolen from a job site, you need inland marine or commercial property coverage for that. Vehicle accidents involving your business vehicles require commercial auto insurance. Professional errors – such as faulty design advice on a design-build project – are typically excluded and require professional liability or errors and omissions coverage. Pollution-related claims involving mold, asbestos, or chemical contamination are generally excluded as well. Employment-related claims like wrongful termination or discrimination also fall outside general liability and require a separate employment practices liability policy.
The takeaway is that general liability is one important layer of protection, but a well-built insurance program stacks multiple layers together to close the gaps. The U.S. Small Business Administration provides a useful overview of the types of insurance coverage most businesses should consider.
How the Limits Work
Every general liability policy has two key numbers. The per-occurrence limit is the most your policy will pay for any single incident. The aggregate limit is the total amount your policy will pay for all covered claims combined during the policy period, which is usually twelve months. Most small contractors carry a million dollars per occurrence and two million dollars in aggregate coverage. That is the minimum most commercial contracts require. Midsize contractors typically carry two million per occurrence and four million aggregate as their base general liability policy – that is not an umbrella or excess layer, it is just a standard GL policy with higher limits.
Here is why the aggregate matters. If you have three covered claims in a single policy year that add up to more than your aggregate limit, the excess comes out of your pocket – even if each individual claim fell within your per-occurrence limit. Your policy also typically has a separate aggregate for products and completed operations, which means claims from finished work draw from their own pool rather than competing with your general aggregate.
Additional Insured and Contract Requirements
If you work as a subcontractor under a general contractor – or as a general contractor under a property owner – you will run into additional insured requirements. When someone requires additional insured status on your general liability policy, they are asking for coverage under your policy if a claim arises from your work. Contracts also commonly require primary and noncontributory language, which generally means your policy responds first, and waiver of subrogation, which prevents your carrier from pursuing the other party after paying a claim. Blanket endorsements for additional insured and waiver of subrogation can streamline these requirements, assuming the contract language aligns with the endorsement wording.
For a deeper dive into how certificates of insurance work in contractor relationships, check out our video on Certificates of Insurance Explained for Contractors.
Occurrence vs. Claims-Made Policies
Most contractor general liability policies are written on an occurrence basis. That means the policy in force when the incident happened is the one that responds, even if the claim is filed months or years later. This is especially important in construction, where damage from completed work can surface long after the project ends. Claims-made policies, which are more common in specialty coverage like professional liability, work differently – the policy in force when the claim is filed is the one that responds. For standard general liability, occurrence-based coverage is the norm for contractors.
When Standard Limits Are Not Enough
Contract requirements often demand higher limits than a standard general liability policy provides. A large commercial project might require five or ten million dollars in total liability coverage. That is where excess liability and umbrella policies come in. An excess policy provides an additional layer of limits above your underlying general liability. A commercial umbrella also extends limits and may provide broader coverage in some cases, depending on the carrier and the policy form. Stacking these layers on top of your base coverage is how contractors meet higher contract requirements and protect against aggregate erosion from multiple claims in a single year.
What Affects Your General Liability Cost
Several factors drive your premium. Your classification code reflects the type of work you do, and higher-risk trades like roofing pay more than lower-risk trades like painting. Depending on your class and carrier, premium is often based on payroll, revenue, or another exposure base, and it gets trued up at audit at the end of the policy period. Your claims history also has a direct impact – multiple liability claims in recent years will raise your rates and may limit which carriers are willing to write you. For general contractors, how you manage subcontractors matters too. Carriers want to see that you are requiring certificates of insurance from your subs and verifying that their coverage is active. The NAIC’s small business insurance guide offers additional context on how liability coverage fits into a broader business insurance strategy.
Get the Right General Liability Coverage
General liability is not every policy your business needs, but it is one of the core coverages that keeps a single incident from becoming a business-ending problem. If you are a contractor or business owner looking for help with your general liability setup – whether you are starting fresh, outgrowing your current program, or just want to make sure you are covered properly – Western Pacific Insurance can help. We write commercial insurance for businesses in Nevada, Arizona, Utah, and California.
Get a quote or start a conversation with our team today.
