Professional Liability (Errors & Omissions) for Contractors
Errors & omissions coverage for design-build, consulting, and construction-management work — protection when a professional mistake or design error leads to a claim.
Construction increasingly involves professional services — design-build, engineering input, construction management, consulting, and the advice contractors give clients about how a project should be built. When those professional services lead to a claim of a mistake, error, or omission, general liability won't respond, because it covers bodily injury and property damage, not financial harm from a professional error. Professional liability, also called errors & omissions (E&O), fills that gap.
As more contractors take on design responsibility and offer professional expertise, E&O has moved from a niche coverage to an essential one for many firms. Buy Contractor Insurance places professional liability for design-build contractors, construction managers, and any construction professional whose advice, plans, or specifications could be the basis of a claim.
The Gap General Liability Leaves
General liability is built around bodily injury and property damage — physical harm. But a growing share of construction risk is financial and professional: a design error that makes a system underperform, a specification mistake that causes rework, advice that turns out to be wrong. Those claims allege economic loss from a professional service, and general liability specifically doesn't cover them. That's the exposure professional liability is designed for.
For any contractor who designs, engineers, manages, or consults — not just builds to someone else's plans — this gap is real. Design-build firms carry it most acutely, since they own both the design and the construction. As the industry shifts more design responsibility onto contractors, E&O has become a coverage that a serious firm can't afford to skip.
Who Needs It and How We Structure It
Professional liability is relevant to a specific set of construction roles: design-build contractors, construction managers, firms offering engineering or architectural input, and contractors who provide meaningful professional advice or take on design responsibility under their contracts. If your work product includes plans, specifications, or professional recommendations that a client relies on, you have professional exposure.
We structure E&O to match that exposure — the scope of your professional services, the size of your projects, and the contractual requirements you face — and coordinate it with your general liability so the two respond to their respective claims without gaps. For firms operating in the design-build space, that coordination is essential, because a single incident can raise both bodily-injury and professional-error questions at once.
Who Needs This Coverage
- Design-build contractors who both design and construct
- Construction managers and owner's representatives
- Contractors offering engineering, architectural, or consulting input
- Any firm whose plans, specs, or advice a client relies on
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