The short answer: a homeowners policy insures a finished, occupied house. A builders risk policy insures a project in motion. Most renovations start inside the first and end up needing the second, and the point where that changes is not the dollar value of the work. It is whether the project touches the structure, whether the home stays occupied, whether materials sit somewhere before they are installed, and whether a contract obligates someone to carry insurance.
This page walks the eight questions that decide which policy a renovation belongs on, and what usually goes wrong when the answer is guessed.
Project size is the wrong first question, but it is the question everyone asks
Carriers do use dollar thresholds. Many homeowners forms will tolerate a renovation up to a stated amount, or up to a stated percentage of the dwelling limit, without requiring anything else. Above that, the file goes to an underwriter.
The trouble is that a small dollar project can be a large insurance problem and a large dollar project can be a small one. Two hundred thousand dollars of cabinetry, stone and appliances in a kitchen that keeps its walls and roof is a manageable homeowners exposure. Eighty thousand dollars of foundation work that puts the house on cribbing for six weeks is not, at any dollar figure, because the risk being run is total structural loss and not the value of the work.
So treat the dollar threshold as the trigger that starts the conversation with your carrier, not as the test of whether the project is covered.
Vacancy and occupancy: the condition that voids more renovation claims than any other
Nearly every homeowners form contains a vacancy or unoccupancy provision. The wording varies. The common pattern suspends or reduces coverage for certain perils, frequently vandalism, malicious mischief, theft, glass breakage and water damage from freezing, once the dwelling has been vacant for a stated number of consecutive days.
Two distinctions matter and are routinely conflated.
Unoccupied generally means the people are gone but the contents are still there. Vacant generally means both are gone. A house stripped to studs with the furniture in storage is usually vacant under the policy definition even though the owner drives past it daily and a crew is there every weekday.
The practical consequence is that the peril most likely to hit an empty renovation site, theft of copper, appliances and fixtures, is exactly the peril the vacancy provision tends to suspend. A separate article in this batch covers the reverse case, occupying a home during a major renovation, where the home stays lived in and a different set of questions applies.
If you cannot say with certainty how your form defines vacant, how many days it allows, and which perils it suspends, that is the first thing to look up.
Structural work changes the question entirely
There is a line that most carriers recognize even when their form does not spell it out. On one side sits finish work: paint, flooring, cabinetry, fixtures, countertops, appliances. On the other sits work that opens the building envelope or alters what holds it up: roof removal, wall removal, foundation work, additions, structural beams, and anything that requires engineering.
Once the envelope is open, the house is exposed to weather it was never exposed to before, and the likelihood of a large loss rises sharply. Once the structure is altered, a partial collapse becomes a live scenario. Underwriters treat these as different risks, and forms often say so through a dwelling under construction provision or a specific exclusion.
If your permit set includes a structural engineer’s stamp, assume the project needs to be underwritten as construction rather than absorbed into the existing policy.
How the existing building gets valued, and where projects go wrong
This is the single most expensive misunderstanding in renovation insurance.
A builders risk policy can be written on one of several bases:
- Completed value. The limit equals the finished value of the structure, existing portion plus new work. Premium is usually charged on the full completed value.
- Renovation or contract value. The limit equals the value of the renovation work only. The existing structure is not insured on that policy and has to stay insured somewhere else.
- Reporting form. The value grows through the project as work is put in place.
A contractor buying builders risk for their own protection will very often buy on the contract value, because that is the exposure they own. That policy does not rebuild your house. It rebuilds their work.
So the question to ask about any builders risk policy on your project is: if the entire structure burns down tonight, what does this policy pay? If the answer is the contract value, the pre existing structure has to remain insured under the homeowners policy, and the homeowners carrier has to know about the construction and agree to it in writing. Two policies covering two different things is a legitimate structure. Two policies each assuming the other one covers the house is a gap.
For the underlying valuation question on the finished home, dwelling coverage versus market value and how much homeowners insurance do I need both apply. A renovation is a good moment to re-estimate the whole number rather than only the new part.
Materials: the coverage that exists in one policy and barely exists in the other
A homeowners form typically provides a modest amount for building materials and supplies on the residence premises, sometimes expressed as a percentage of the dwelling limit and often subject to the same vacancy limitations described above. It was written for a homeowner replacing a water heater, not for a client who has paid deposits on imported tile, a custom range and four months of millwork.
Builders risk forms are generally broader here, and frequently extend to materials in transit and materials in temporary offsite storage, usually with their own sub limits. Because ownership, shipping terms and storage location all affect whether a loss falls to you or your contractor, that subject gets its own treatment in construction materials in transit on a high value home.
The short version for this page: if significant materials will exist before they are installed, the homeowners policy alone is very likely the wrong home for them.
The contractor’s interest versus the owner’s interest
These are genuinely different exposures and they are the reason both sides often buy a policy.
The contractor’s interest is the value of the work performed and not yet paid for, their own tools and equipment, and their contractual obligation to deliver the project. Their general liability policy answers for damage they cause to other people and other property. It does not rebuild their own unfinished work. That is what their builders risk is for. General liability versus builders risk walks the distinction.
The owner’s interest is the entire building, the materials already paid for, the delay in getting the home back, and the liability that attaches to owning a construction site.
A well drafted construction contract says which party buys the builders risk, on what valuation basis, for what limit, with what deductible, and who is named. If your contract does not say, that is worth fixing before the first demolition day, not after a loss. If you are running the project yourself without a general contractor, acting as your own general contractor covers the additional exposures that decision creates.
The exclusions that matter on a renovation
No form is identical, but the recurring list is stable enough to work from:
- Faulty workmanship, design, materials or specifications. Most forms exclude the cost to correct the defect. Some forms cover resulting damage from the defect and some do not, and that distinction carries real money on a structural project.
- Water damage from rain entering an unprotected opening. This is the classic renovation loss: the roof is off, the tarps fail, and the finish work below is destroyed. Some builders risk forms exclude it outright, some cover it only if reasonable protective measures were in place. Read this one personally.
- Earth movement and flood. Excluded in the great majority of property forms. Both are separately insurable. On a project that involves excavation or a hillside, this is not academic.
- Employee and contractor theft. Frequently excluded or narrowly limited. Theft by unknown parties is usually covered. Theft by people who are supposed to be on site often is not.
- Testing. Damage during testing of mechanical or electrical systems is commonly excluded or limited.
- Delay, loss of use and soft costs. Almost always excluded from the base form. Soft cost coverage, which can pick up additional interest, permit re-filing, design fees and similar, is generally a separate purchase.
- Wear, tear, deterioration and existing defects. A renovation frequently uncovers a condition that predates the work. The policy is not going to pay to correct it.
When the transition actually happens
At the front end, the transition should happen before demolition, not after, and it should be documented. The practical sequence looks like this:
- Tell your current homeowners carrier the scope, the timeline, and whether the home will be occupied. Get their answer in writing. Some carriers will endorse the policy and continue. Some will require a builders risk. Some will not want the risk at all.
- Confirm in the construction contract who buys builders risk, the valuation basis, the limit and the deductible.
- Confirm the existing structure is insured somewhere for its full reconstruction value for the entire duration of the project.
- Confirm every party with an interest appears on the right policy: owner, contractor, lender, and the trust or entity that holds title if it is not held personally.
At the back end, the transition off builders risk and back onto a homeowners form has its own set of traps, including the fact that occupancy can end a builders risk policy before the work is finished. That is covered in moving from builders risk back to homeowners.
Where to go from here
If the project is on a high value home, the service page for this work is high value home renovation insurance. For the standard market version of the same question, see remodeling your home.
If you want us to read the construction contract’s insurance article and your current declarations page side by side before the crew shows up, request a coverage review. That is the cheapest hour in the whole project.