Summary of Key Points

• Faulty workmanship, design, and materials are excluded; the defective work itself is not covered.
• Flood and earthquake are excluded and require separate policies, which matters along the coast.
• Coverage ends at occupancy or substantial completion; damage after that point falls to the homeowner’s policy.
• Contractor-owned tools, employee dishonesty, and most gradual damage are not part of the policy.
• Endorsements and companion policies can close most common gaps when reviewed during policy design.

Builder’s risk insurance covers a wide range of construction-period losses, but it is not all-risk insurance. The policy is built around named perils or open perils with specific exclusions, and several common construction exposures are intentionally left out.

Knowing where those gaps sit is just as important as knowing what the policy covers. For a fuller overview of builder’s risk insurance generally, our service page is a useful companion to this post. Below, we walk through the exclusions homeowners are most often surprised by, and how they are typically handled.

Faulty Workmanship, Design, and Materials

Builder’s risk policies do not cover damage caused by faulty workmanship, faulty design, or faulty materials. If a subcontractor installs a window incorrectly and water intrusion damages the framing behind it, the defective installation itself is not covered. The policy is not designed to substitute for the work the contractor was paid to do correctly.

Some carriers offer endorsements, often referred to by names like LEG2 or LEG3 wording, that respond to consequential damage flowing from a defect even when the defect itself is excluded. Coverage of this kind varies meaningfully between carriers, and the language is worth having reviewed by an experienced agent.

Flood Damage Requires a Separate Policy

Flood is excluded from every standard builder’s risk policy. That exclusion is straightforward inland, but it matters significantly along the South Carolina coast. A project in Kiawah, Seabrook, Isle of Palms, Sullivan’s Island, or any other low-lying community is exposed to storm surge and tidal flooding throughout construction.

Flood coverage during construction is handled through a separate policy, typically through the National Flood Insurance Program or a private flood market. If the project is financed, the lender will almost always require it. Even without a lender requirement, flood coverage is a practical necessity on the coast.

Earthquake, Sinkhole, and Other Ground Movement

Damage from earthquake, sinkhole, mudslide, or other earth movement is excluded under standard builder’s risk policies. Earthquake exposure in coastal South Carolina is real but modest, and endorsements are available from certain carriers. Soil subsidence claims are typically not covered at all, which is one reason geotechnical reports and proper site preparation matter.

Wear, Tear, and Gradual Damage

Losses that develop slowly, such as rust, corrosion, mold, fungus, dry rot, and general deterioration, are not covered. Builder’s risk responding to sudden and accidental events, not the consequences of materials sitting exposed too long. If sheetrock is left uncovered through a wet season and develops mold, that is treated as a maintenance issue, not an insurance claim.

Mechanical breakdown of newly installed equipment is similarly excluded. If a new HVAC unit fails on its own, it is a warranty matter, not a builder’s risk claim.

Damage After the Home Is Complete or Occupied

Builder’s risk coverage ends at the earliest of several triggers, usually the certificate of occupancy, the home being occupied, substantial completion, or expiration of the policy term. Damage that occurs after those triggers is not covered by builder’s risk.

This is one of the most common sources of unintended gaps. Moving family possessions into the home before closing out the builder’s risk policy and binding the homeowner’s policy can leave a window where neither policy fully responds. Coordinating the handoff with an agent before move-in is the safest approach.

Contractor Tools and Their Own Equipment

Builder’s risk covers materials that will become part of the finished home. It does not cover the contractor’s own tools, machinery, or equipment used to do the work. A general contractor’s table saw, a subcontractor’s lift, and rented equipment on site are insured under their own inland marine or equipment policies.

Employee dishonesty and theft by the contractor’s own workers also fall outside the policy. Those exposures are handled through the contractor’s commercial crime or fidelity coverage.

Vacant Sites and Voluntary Parting

Vandalism is generally covered by builder’s risk, but most policies suspend that coverage if the site is left vacant for an extended period, often thirty or sixty days, before construction begins or after it pauses. A long delay between permitting and groundbreaking, or a halt in construction, can quietly create a gap.

Voluntary parting, meaning the property was handed over because of fraud or misrepresentation, is also excluded. Theft accomplished through trickery is treated differently from theft accomplished by force or stealth.

War, Government Action, and Nuclear Hazards

Standard exclusions across nearly all property insurance, including builder’s risk, are war, certain forms of terrorism, nuclear hazards, and seizure by government or civil authority. These rarely matter in practice but appear in every policy.

Endorsements That Close the Most Common Gaps

Several of the exclusions above can be addressed by adding the right endorsement or pairing the builder’s risk policy with a companion policy. An experienced independent agent can help structure the right combination for the project. Common additions include:

• Flood coverage through a separate construction flood policy
• Earthquake endorsement for projects with specific soil or site conditions
• Soft cost endorsement to cover delay-related expenses
• Defective workmanship resulting damage coverage where available
• Extended coverage for materials in transit and at off-site storage

Frequently Asked Questions About Builders Risk Exclusions

Is hurricane damage covered by builder’s risk?

It depends on the policy. Wind and hail are sometimes covered, sometimes sublimited, and in some coastal markets excluded entirely or subject to a separate named storm deductible. Reviewing the wind language carefully before construction begins is essential along the Lowcountry coast.

If a subcontractor’s mistake causes a fire, is the resulting damage covered?

Often yes, though the answer depends on the policy wording. The defective work itself is excluded, but consequential damage from a covered peril like fire is generally insurable, depending on the carrier and endorsements in place.

Does builder’s risk cover the homeowner’s belongings stored on site?

Generally no. Builder’s risk covers the project being built and the materials going into it. Personal property is typically covered under a homeowner’s policy at another residence until the new home is occupied.

What happens if construction pauses for several months?

Extended vacancy can trigger an exclusion or require notification to the carrier. Some policies require active progress to maintain certain coverages. If a project will be paused, contacting the agent before the pause is a good practice.

Closing the Gaps in What Builders Risk Insurance Does Not Cover

Builder’s risk insurance is a strong foundation for any custom home build, but the exclusions matter. Flood, earthquake, faulty workmanship, contractor-owned equipment, and gaps at completion are the most common surprises. Most can be addressed through the right combination of endorsements and companion policies, but only if they are reviewed before construction begins. To have your project reviewed, request a quote or call (843) 819-3304.