A contractor can have strong references, a detailed proposal, and an attractive price, yet still leave a homeowner exposed if insurance is missing, expired, or inadequate for the job. A falling ladder, broken water line, damaged neighboring property, or injured worker can turn a planned renovation into a serious financial dispute. Knowing how to evaluate contractor insurance gives you a practical way to screen builders before demolition starts or materials arrive.
For substantial work such as a basement remodel, structural framing, a deck, an addition, or a custom home project, do not treat “insured” as a checkbox. Ask what coverage the contractor carries, who is covered, whether the policy is active, and whether the limits make sense for the work happening at your home.
Start With a Current Certificate of Insurance
The first document to request is a certificate of insurance, often called a COI. It is a one-page summary issued by the contractor’s insurance agent or carrier. It should identify the insured business, list policy types, show coverage limits, and include effective and expiration dates.
Make sure the business name on the certificate matches the name on the proposal and contract. A certificate in an individual’s name does not automatically protect a project contracted with a different LLC or company. Small discrepancies may have a reasonable explanation, but they deserve a direct question before you sign.
A COI is a starting point, not final proof that every loss will be covered. Policies can change or be canceled. For larger projects, ask the contractor to have the agent send the certificate directly to you or confirm coverage by phone. Use contact information you find independently if possible, rather than relying only on a number printed in an email attachment.
How to Evaluate Contractor Insurance Coverage Types
The type of coverage matters as much as the fact that coverage exists. Residential contractors generally need more than one policy to responsibly manage project risk.
General liability insurance
General liability is the baseline coverage homeowners should expect. It may respond when the contractor’s work causes bodily injury or property damage to someone else. For example, it could be relevant if demolition damages a portion of your home not included in the project, a subcontractor breaks a window, or construction activity causes damage to a neighbor’s property.
Look for both a per-occurrence limit and an aggregate limit. The per-occurrence limit is generally the maximum available for one covered incident. The aggregate is the most the policy may pay over the policy period. There is no single limit that fits every job. A modest repair has different exposure than a major renovation involving structural changes, excavation, multiple trades, or an occupied home.
Do not assume general liability covers defective workmanship itself. Many policies are designed to cover resulting damage, not the cost of replacing work that was simply performed poorly. That distinction is one reason insurance should never replace proper licensing, a clear contract, permitting, supervision, and careful contractor selection.
Workers' compensation insurance
Workers' compensation is particularly important when people will be working at your property. It is designed to provide benefits for employees injured on the job. Without proper coverage, a worker injury can create confusion and potential exposure for the homeowner, especially if the worker is classified incorrectly or the contractor has no employees but relies heavily on labor crews.
Ask whether the contractor carries workers' compensation and whether the workers performing the job are employees, subcontractors, or both. If subcontractors are involved, ask how the general contractor verifies their coverage. A capable construction manager should be able to explain this process plainly.
Commercial auto insurance
If trucks, trailers, equipment, or delivery vehicles are part of the work, commercial auto coverage is worth confirming. This is especially relevant for demolition, framing, hauling, excavation, and projects with frequent material deliveries. A vehicle-related incident may not fall under general liability coverage.
Umbrella or excess liability coverage
For larger custom builds, significant renovations, or projects near property lines and high-value finishes, an umbrella policy can provide additional liability protection above the limits of underlying policies. It is not required for every project, but its presence can indicate that a contractor takes larger-project risk seriously.
Check Dates, Limits, and Policy Status
A certificate that expired last month offers no protection for work beginning next week. Review the policy dates and make sure the coverage remains in force for the expected project timeline. If your renovation will run across a renewal date, request an updated certificate once the new policy is issued.
Coverage limits should be appropriate for the scope and potential consequences of the work. A contractor building a deck may carry different limits than one removing load-bearing walls, coordinating plumbing and electrical trades, or managing a full-home renovation. The point is not to become an insurance underwriter. It is to recognize when the coverage appears disconnected from the size and complexity of your project.
Also ask whether the contractor has had coverage canceled, non-renewed, or restricted in a way that affects the planned work. A straightforward contractor should not be offended by reasonable questions. You are making a major investment in your home.
Ask About Subcontractors and Trade Partners
Most significant residential projects require more than one trade. Electricians, plumbers, HVAC technicians, roofers, excavators, painters, and specialty installers may all enter your property. The general contractor may not perform every task with in-house employees, but they should still take responsibility for coordinating qualified and insured trade partners.
Ask who will be working on-site and whether subcontractors must provide their own general liability and workers' compensation coverage. Also ask whether the contractor collects current certificates before those trades begin work. This is a practical sign of organized project management, not unnecessary paperwork.
If the contractor says they are not responsible for subcontractor insurance, pause before moving forward. Homeowners hire a general contractor in part to coordinate work, control the site, and manage the moving parts of a complex project.
Request Additional Insured Status When Appropriate
For larger projects, your contractor may be able to add you as an additional insured on their general liability policy for operations related to your job. This does not make you responsible for the contractor’s work, and it does not replace your own homeowners insurance. It may provide an added layer of protection if a covered claim arises from the contractor’s operations.
Whether this is appropriate depends on the project, the carrier, and the contract requirements. It is more common on commercial work, but homeowners undertaking extensive construction can discuss it with their contractor and insurance advisor. If it is requested, ask for the actual additional insured endorsement rather than relying only on a notation on the certificate.
Compare Insurance With the Contract and Permit Plan
Insurance review works best alongside the rest of your contractor screening. Compare the certificate to the scope of work, contract language, permit responsibilities, and payment schedule. If a contractor proposes structural work but cannot explain permits, engineering requirements, inspections, or insurance documentation, that is a concern.
Your written agreement should identify who is responsible for obtaining permits, protecting existing areas of the home, handling debris, managing change orders, and correcting damage caused during construction. Insurance is there for unexpected losses. A well-defined contract reduces the misunderstandings that become disputes.
For homes in Oakland and Macomb counties and surrounding established communities, permit requirements can vary by municipality and project type. A local contractor familiar with residential inspections and code-conscious construction can help keep the work organized, but homeowners should still verify that required permits are actually pulled in the appropriate name.
Watch for These Insurance Red Flags
A contractor does not need to provide a lengthy legal file before giving an estimate. Still, there are clear warning signs that justify slowing down:
- The contractor refuses to provide a current certificate of insurance.
- The business name, address, or policy dates do not match the proposal.
- The policy expires before work begins or the contractor will not provide an updated document.
- Workers' compensation is missing despite a crew performing labor at the property.
- The contractor cannot explain how subcontractors are screened and insured.
- The contractor pressures you to start work before permits, contracts, or documentation are in place.
A low price can be appealing, particularly when a project has already stretched the household budget. But uninsured or loosely managed work can cost far more than the initial savings if damage, injuries, delays, or code issues occur.
Keep Your Own Homeowners Policy in the Conversation
Before major construction begins, call your homeowners insurance carrier. Tell them about the planned scope, estimated cost, occupancy plans, and timeline. Some renovations change the replacement value of the home, create vacancy concerns, or involve risks that deserve a policy adjustment.
Your insurer can explain your own policy's protections and exclusions. The contractor's insurance and your homeowners policy serve different purposes. One should not be assumed to fill gaps in the other.
Hiring a contractor is a trust decision backed by documents, planning, and accountability. Request the insurance information early, ask direct questions, and make it part of the same careful process you use to review the scope, permits, schedule, and workmanship. A contractor who manages those details well is more likely to manage your project with the same level of care.
