Most contractors know they need general liability insurance. Fewer realize that general liability was never designed to cover mistakes in design, planning, or professional advice. As more contractors take on design-build work, project management, and consulting, that gap has become one of the most common and costly surprises in construction insurance.
What General Liability Covers
Commercial general liability insurance responds to claims that your business caused bodily injury or property damage to others. Examples include a visitor tripping over materials on a job site, damage to a neighbor’s property during construction, or a completed project that causes water damage to a building because of defective installation.
General liability typically does not pay to fix your own faulty work itself. It responds to the resulting damage to other property and injuries to people, subject to the policy’s terms and exclusions. It also generally excludes professional services such as design, engineering, and consulting.
What Professional Liability Covers
Professional liability insurance, also called errors and omissions (E&O) insurance, protects against claims that your professional services caused a financial loss, even when no one was hurt and nothing was physically damaged. For contractors, common examples include:
- A design error in a design-build project that requires costly rework.
- Incorrect specifications, calculations, or material selections.
- Project management decisions that cause delays and financial losses for the owner.
- Failure to identify a code requirement during planning.
- Advice provided during preconstruction or value engineering that proves wrong.
Which Contractors Need Professional Liability?
You should strongly consider professional liability if your business:
- Performs design-build work or prepares drawings, even with outside architects or engineers.
- Provides construction management or owner’s representative services.
- Offers consulting, estimating, inspections, or value engineering.
- Specializes in technical systems such as fire protection, HVAC, or electrical design.
- Works on contracts that require professional liability coverage, which is increasingly common on public and commercial projects.
How the Policies Work Together
Professional liability and general liability are complementary, not interchangeable. Gaps can appear when a claim involves both a professional error and physical damage. Contractor’s professional liability policies, and combined policies that include contractor’s pollution liability, are designed for construction firms and can be coordinated with your general liability so claims do not fall between the two. Professional liability is usually written on a claims-made basis, so continuous coverage and, when needed, an extended reporting period are important.
Other Coverages to Review
- General liability with completed operations coverage and appropriate additional insured endorsements.
- Builders risk for projects under construction.
- Inland marine for tools and equipment.
- Commercial umbrella for higher liability limits.
- Surety bonds for bid, performance, and payment requirements.
Read Your Contracts Carefully
Construction contracts often include indemnification clauses, insurance requirements, and limitations that shift risk onto contractors. Before signing, have your agent review the insurance section to confirm your policies meet the requirements and that you understand what you are agreeing to.
Protect Your Reputation and Your Business
At Eton Bridge, we help contractors build insurance programs that match the work they actually do. If your services have grown beyond building into design or management, learn more about professional liability insurance or explore our contractor insurance programs.
