Electrical Design-Build Insurance

Even contractors who carry both GL and professional liability can find themselves exposed after a project wraps up. Completed operations coverage has specific limitations that create dangerous blind spots, particularly for electrical work where defects may not surface for years.

The 'Your Work' Exclusion and Its Impact

Most CGL policies include what's known as the "your work" exclusion under Coverage A. This exclusion removes coverage for property damage to the completed work itself. If an electrical panel you designed and installed fails, your GL policy may cover damage the failure caused to the building owner's other property, but it won't pay to repair or replace your own defective work.

For design-build electrical contractors, this exclusion hits hard. Your "work" now includes both the physical installation and the underlying design. A claim involving a design defect that damages only the electrical system, not surrounding property, falls entirely within this exclusion. The subcontractor exception can sometimes restore coverage if a sub performed the actual installation, but if your own crew did the work, you're exposed.

Statute of Repose vs. Policy Expiration

Here's where timing becomes critical. Most states have statutes of repose that allow claims against contractors for 6 to 10 years after project completion, and some extend even longer for latent defects. Your GL completed operations coverage, however, only applies during the active policy period. If you cancel or non-renew your policy, completed operations coverage stops immediately.

Professional liability policies are typically written on a claims-made basis, meaning they only cover claims made during the policy period. If you retire, close your business, or switch carriers without purchasing an extended reporting period (often called "tail coverage"), claims arising from past design-build projects won't be covered. Contractors updating to the 2026 NEC face additional liability considerations as code changes can retroactively highlight design decisions that were compliant at the time but are now viewed as inadequate.

Understanding the structural differences between these two policy types helps you identify exactly where your coverage breaks down.

Coverage Comparison Table

Standard off-the-shelf policies rarely cover the full risk spectrum of design-build electrical work. Specialized endorsements and policy structures can fill the gaps, but you need to know what to ask for.

Protective Indemnity and Rectification Coverage

Rectification coverage, sometimes called "rectification of defective work" or "rip and tear" coverage, pays for the cost of accessing and repairing your defective work. Standard GL policies exclude this cost because it's considered damage to "your work." A rectification endorsement adds it back.

Protective indemnity endorsements address situations where your contract requires you to indemnify the project owner for losses arising from your professional services. Without this endorsement, your GL policy won't respond to indemnity claims rooted in design errors, and your professional liability policy may exclude contractual liability. The endorsement bridges the two. Common small business insurance programs often miss these specialized endorsements entirely, leaving contractors exposed on their highest-value projects.

Faulty Workmanship Wraps

A faulty workmanship wrap, sometimes structured as a project-specific professional liability policy, provides unified coverage for both design and construction errors on a single project. These wraps are particularly valuable on large design-build electrical projects where the line between design error and construction defect is blurry.

The wrap policy sits above your standard GL and professional liability, responding to claims that fall between the two. It typically covers the project owner, the design-build contractor, and key subcontractors under a single policy, reducing finger-pointing between insurers. The cost is usually built into the project budget. For electrical contractors working on projects above $5 million, a wrap policy can be the difference between a manageable claim and a business-ending coverage dispute.

FAQ: Coverage Limits and Claims

Do I need professional liability if I subcontract the engineering work? Yes. As the design-build contractor, you hold the contract with the owner and bear ultimate responsibility for the design. Your professional liability policy should cover vicarious liability for your design subconsultant's errors.

How much professional liability coverage should I carry? Most project owners require $1 million to $2 million per claim. For larger projects, $5 million or more is common. Your coverage limit should match the largest contract value you're pursuing.

Will my GL policy cover a fire caused by a design error? Probably not. If the fire resulted from an engineering miscalculation rather than an installation mistake, the professional services exclusion in your GL policy will likely apply. You'd need your professional liability policy to respond.

What is tail coverage, and do I need it? Tail coverage extends your claims-made professional liability policy after it ends, covering claims made during the tail period for work performed while the policy was active. You need it if you're retiring, selling your business, or switching to an occurrence-based policy.

Are design-build claims increasing? Claims data from recent benchmarking reports on design professional liability shows claim severity rising steadily, driven by higher construction costs and more complex building systems. Electrical systems are a frequent source of claims due to their interaction with life safety and energy management systems.

Does my policy cover code compliance errors? It depends on the policy form. Some professional liability policies exclude claims arising from failure to comply with building codes. Others cover it. Check your policy language specifically, and ask your broker to confirm.

How do market conditions affect my premiums? Global property insurance rates declined by 12% in Q2 2026, but US financial and professional liability rates have moved in the opposite direction. Expect professional liability premiums for design-build contractors to remain firm or increase through the rest of the year.

Electrical design-build insurance gaps between professional liability and completed operations coverage represent one of the most serious financial risks your contracting business faces. A single uninsured claim can exceed the value of the project that generated it.

The most effective protection combines three elements: a professional liability policy structured for design-build work with appropriate retroactive dates, a CGL policy with rectification and subcontractor endorsements, and tail coverage planning that extends protection beyond your active policy period. Don't assume your current program covers design-build risk just because you've added professional liability. The policies need to work together, and the endorsements matter as much as the base coverage.

Review your insurance program with a broker who specializes in contractor professional liability before you sign your next design-build contract. Bring your contract to the conversation, not just your policy. The indemnification clauses, warranty periods, and limitation of liability terms in your contract directly determine whether your insurance will respond when you need it most.