Builders Risk Insurance: What It Covers (and What It Doesn't)

By Tamir Lerner · Builders Risk Insurance Pros · Updated July 22, 2026

Quick answer: Builders risk insurance (also called course of construction insurance) pays to repair or rebuild a structure under construction and the materials for it when they are damaged by covered perils such as fire, wind, lightning, theft, and vandalism. It typically does not cover flood, earthquake, faulty workmanship, employee injury, or third-party liability. Those gaps are closed with endorsements or separate policies.

Builders risk is the property insurance that protects a project while it is being built. It is one of the most misunderstood policies in construction, largely because people assume it works like a homeowners or commercial property policy. It doesn't. It is purpose-built for the temporary, high-change environment of an active jobsite, and it turns off the moment the building is finished. Understanding exactly where the coverage starts and stops is how owners and contractors avoid a nasty surprise after a loss.

What builders risk insurance covers

At its core, a builders risk policy insures the building or structure under construction against direct physical loss. Most modern forms are written on a "special" or all-risk basis, meaning they cover any cause of loss that is not specifically excluded. The commonly covered perils include:

The materials, not just the building

A key feature of builders risk is that it covers more than the structure itself. It typically extends to building materials, supplies, fixtures, and equipment that will become a permanent part of the project. Well-written policies also add coverage extensions for:

These extensions usually carry their own sub-limits, so a policy might insure the full project value but cap off-site storage at a smaller figure. Matching those sub-limits to how the job actually runs is one of the most valuable things a broker does.

What builders risk insurance does not cover

The exclusions are where projects get hurt, because they are often assumed away. A standard builders risk policy will not respond to:

Not covered by defaultWhere the protection actually comes from
Flood and surface waterFlood endorsement or a separate flood policy
Earthquake and earth movementEarthquake / DIC endorsement or standalone policy
Faulty workmanship, design, or materials (the defective work itself)Contractor's warranty, professional liability; some resulting damage may be covered
Bodily injury to a third party or property damage they sufferGeneral liability (a separate policy)
Employee injuriesWorkers' compensation
Damage to contractors' tools and owned equipmentContractors' equipment / inland marine (tool) floater
Loss after the project is complete or occupiedPermanent commercial or homeowners property policy
Voluntary parting, mysterious disappearance, wear and tear, rust, moldGenerally not insurable; controlled through site management

Flood and earthquake: the two most common surprises

Flood and earthquake are excluded on nearly every builders risk form. If your site sits in a mapped flood zone or a seismically active region, these are not optional considerations. Lenders frequently require flood coverage as a condition of the construction loan, and adding it after a storm is on the forecast is usually impossible. The industry reference IRMI covers these mechanics in its builders risk definition.

Faulty workmanship versus resulting damage

This is the exclusion that generates the most claim disputes. Builders risk generally will not pay to redo work that was done wrong — that is the contractor's responsibility. But if defective work triggers a covered peril that then damages sound, non-defective parts of the project, many policies cover that resulting damage. Example: a poorly soldered pipe is not covered, but the water damage it causes to finished drywall and flooring often is. Exact wording controls the outcome, which is why the form matters more than the price.

When does the coverage start and stop?

Builders risk is a temporary policy tied to the construction period. Coverage typically begins when materials are delivered or work starts and ends at the earliest of several triggers: substantial completion, issuance of a certificate of occupancy, occupancy or use of the building, sale of the property, or expiration of the policy term. This "termination" language is standardized in ISO's builders risk forms and is worth reading carefully — you can read more about ISO commercial property forms at the Verisk (ISO) site. If a project runs long, you need an extension endorsement before the term lapses, or you risk a gap.

Common add-ons worth considering

Because the base form is deliberately narrow, most well-structured programs bolt on a few key extensions:

Not sure whether your project is fully covered?
Get a straight-talk builders risk review and quote from a national specialist. We match the form and endorsements to how your job actually runs. Request a quote at buildersriskinsurancepros.com Call (818) 356-8150

The bottom line

Builders risk insurance is excellent at what it is designed to do — protect the physical project and its materials from sudden damage during construction. But it is not a catch-all. It leaves out liability, employee injury, contractors' own tools, and, unless you add them, flood and earthquake. The smartest approach is to treat builders risk as one layer in a program that also includes general liability and workers' compensation, then use endorsements to close the specific gaps your site presents. Do that, and a fire, storm, or theft becomes a claim you file rather than a loss you absorb.

Builders Risk Insurance Pros is a division of Thrive Risk Management. This article is general information, not a policy or legal advice. Coverage depends on the exact form, endorsements, and facts of your project. Read your policy and speak with a licensed agent about your situation.