An installation floater and builders risk insurance both protect construction property, but they cover different things for different people. Builders risk insures an entire project—the structure and everything being built into it—and is usually bought by the property owner or general contractor. An installation floater is narrower: it protects the specific materials and equipment a contractor is responsible for installing, and it follows those items from the supplier’s warehouse through transit and onto the job site. On most sizable projects, both policies are in force at the same time, each filling a gap the other leaves open.
What Each Policy Actually Insures
Builders risk covers the structure itself and everything that becomes part of it: foundation, framing, roofing, wiring, plumbing, and permanently installed fixtures. Most forms are written on an “all-risk” basis, meaning any direct physical loss is covered unless the policy specifically excludes it.1Victor Insurance. Builders Risk Coverage Form If wind collapses a partially framed wall or fire destroys lumber stored on site, the policy pays for replacement materials and the labor to rebuild. Coverage extends to debris removal, temporary structures, scaffolding, and construction forms. The limit is typically set at the full projected value of the completed building.
Coverage begins when the policy is bound and the contracts are signed, and it stays in force until the building is occupied, put to its intended use, or the policy term expires, whichever comes first. Builders risk applies to renovation and remodeling too, not just new construction. One thing to watch on renovations: many policies cover the existing structure at actual cash value rather than replacement cost, which can leave a 30 to 50 percent shortfall if a fire damages the original building envelope during a gut remodel.
An installation floater insures specific items a contractor brings to a project: HVAC systems, elevator components, commercial generators, bathroom fixtures, windows, plumbing assemblies, and similar equipment. It covers these items against fire, theft, water damage, vandalism, and transit accidents. The real value is mobility. Coverage follows the insured property from the supplier’s warehouse, through transit, into temporary storage, and onto the job site during installation. If a truck carrying a custom chiller overturns, or a subcontractor drops an expensive panel while hoisting it into place, the floater pays for the replacement. Coverage stays active until the work is completed and formally accepted by the owner or general contractor.
How the Two Policies Differ
Both policies descend from inland marine insurance, and both protect property during construction. The differences come down to scope, who buys them, where coverage applies, and how long it lasts.
- Scope: Builders risk insures the entire structure and all materials incorporated into it. An installation floater insures one specific trade’s materials and equipment.
- Typical buyer: Property owners or general contractors buy builders risk. Subcontractors, electricians, plumbers, HVAC technicians, and other specialty trades buy installation floaters.
- Location of coverage: Many builders risk forms are site-specific. Installation floaters also cover materials in transit and at off-site storage.
- Policy limits: Builders risk limits reflect the full completed value of the building. Installation floater limits reflect the cost of the specific materials being installed.
- Duration: Builders risk runs from project start to completion or occupancy. An installation floater runs until the installed work is accepted.
The transit gap is where most misunderstandings happen. A general contractor’s builders risk may extend some coverage to subcontractors while they work on site, but it often excludes materials a subcontractor is transporting or storing off site. A sub who assumes the GC’s policy has them covered during a delivery run can find out otherwise after a loss.
Which One You Need
Your role on the project decides the answer.
If you own the property or you’re developing it, builders risk is your policy. Make sure the limit matches the full completed value of the structure, confirm the form covers resulting damage from faulty workmanship, and add a soft cost endorsement if you have financing costs or lease commitments tied to a completion date. Soft cost coverage reimburses expenses that pile up during a delay after a covered loss—additional loan interest, extended real estate taxes, redesign fees, extended insurance premiums, and the like. It is not usually included automatically; it has to be requested and priced separately.
If you’re a subcontractor or specialty trade, you need an installation floater. It protects you during the window when materials are in your custody but not yet accepted by the owner. Don’t assume the general contractor’s builders risk policy covers your materials in transit or in your warehouse. Many policies specifically exclude that exposure.
If you’re a general contractor, you need to think about both sides. Your builders risk covers the structure. Verify whether it extends to subcontractor materials on site, and confirm that every sub carries their own floater for off-site and transit exposures. Many GCs require an updated certificate of insurance from specialty trades before work begins on site, which protects everyone from retroactive premium adjustments and uncovered losses.
Where Both Policies Belong on the Same Project
On large commercial jobs, it’s common to see a builders risk policy covering the structure and individual installation floaters covering specialty subcontractor work. The two aren’t mutually exclusive. Builders risk acts as the umbrella for the project and protects the owner’s investment in the physical structure once materials arrive on site. Installation floaters cover subcontractors during the days or weeks they hold materials before delivery, and during transit itself.
When both policies could pay for the same loss, the adjustment is typically handled on a pro rata basis, with each insurer paying its proportional share. The bigger practical worry isn’t double coverage; it’s the scenario where neither policy applies because each insurer points to the other. Clear contract language—spelling out which policy is primary for which exposure—is what keeps that from happening.
Common Exclusions on Each Side
Knowing what’s excluded is as important as knowing what’s covered.
The most significant exclusion in nearly every builders risk form is faulty workmanship and design defects. If a flawed engineering design causes a wall to collapse, the policy won’t pay to redo the defective work or fix the design. Most forms do cover “resulting damage,” meaning the harm the collapse causes to other, correctly built parts of the project. The distinction between the defective work itself and the resulting damage trips up a lot of claimants. Other standard exclusions include earthquake and flood (both typically require separate policies or endorsements), wear and tear, gradual deterioration, and losses caused by the contractor’s failure to protect the work. Some policies also exclude losses occurring after the project has been idle for an extended period, often 60 days or more.2Investopedia. Understanding Builder’s Risk Insurance for Construction Projects
Installation floaters typically exclude damage to materials in air transit, waterborne materials, items being worked on underground, and repair costs caused by faulty workmanship. Critically, coverage ends once materials are permanently installed and accepted. If a subcontractor installs an HVAC unit and the owner signs off on it, that unit is no longer covered by the floater; coverage shifts to the builders risk policy or the owner’s permanent property insurance.
Valuation and Deductibles
How a policy values damaged property determines what you actually receive. Replacement cost coverage pays what it costs to repair or replace with materials of similar kind and quality, without deducting for depreciation.3National Association of Insurance Commissioners. What’s the Difference Between Actual Cash Value Coverage and Replacement Cost Coverage Actual cash value factors in depreciation, which often leaves a gap between the payout and the real cost of replacement. For construction, replacement cost is the better option.
Builders risk deductibles on mid-sized projects typically run from $1,000 to $10,000 as a flat amount. High-value or high-risk projects can see $25,000 or more, and some policies use a percentage of the insured value. Perils like wind or hail may carry their own separate, higher deductible even when the base policy uses a flat structure. The deductible on the declarations page may not be the one that applies to the loss you have.
What Each Policy Costs
Builders risk premiums generally run between 1 and 4 percent of the total completed value of the structure, depending on project type, location, and construction methods. A $5 million project might carry a builders risk premium somewhere between $50,000 and $200,000 for the policy term. Frame construction, coastal locations, and long timelines push costs toward the higher end.
Installation floater premiums are lower in absolute terms because they cover a narrower slice of property. Rates vary by the type of equipment, the values being insured, and the specific risks involved in the installation work. The tradeoff is that each subcontractor on a project may need their own floater, so the aggregate cost across all trades adds up.
Both premiums are generally deductible as ordinary and necessary business expenses. The IRS allows businesses to deduct premiums for insurance covering fire, storm, theft, accident, or similar losses related to the trade or business.4Internal Revenue Service. Publication 535 – Business Expenses Insurance proceeds used to repair or replace damaged property are generally not taxable because they’re treated as reimbursement for the loss, though proceeds exceeding the adjusted basis of the property may be a taxable gain, and proceeds that replace lost profits—such as business interruption or soft cost payouts—are typically taxable as ordinary income.