Home Insurance During Renovation: What's Covered & When You Need Extra Protection

What Your Standard Policy Actually Covers During a Renovation

Your homeowners insurance was designed for a completed, occupied home, not a construction zone. During a renovation, your policy may still provide some protection, but critical gaps open up the moment work begins. Renovations that add square footage, custom finishes, or expensive materials increase your home's replacement cost and may require higher dwelling limits to avoid underinsurance or claim disputes. If upgrades aren't reported and coverage is too low, insurers may deny part of a claim or treat the improvement as uninsured.

What typically stays covered:

• Sudden and accidental losses (like a fire unrelated to construction work)
• Personal liability for visitors injured on the property
• Personal belongings not part of the construction project
• The existing structure, up to your current dwelling limit

What becomes uncertain or excluded:

• Damage directly caused by or resulting from construction activity
• Losses occurring because of contractor error or negligence
• Theft of building materials stored on-site
• Damage while the home is vacant during an extended renovation

Most standard HO-3 policies are surprisingly silent on renovation risks, and that silence is not in your favor. If damage results from your contractor's or their employees' actions, that generally isn't covered under your homeowners policy. The contractor's own liability insurance is expected to respond instead. Understanding your dwelling coverage limits before a project starts ensures you're not caught short if something goes wrong mid-build.

Common Exclusions That Can Sink Your Renovation Claim

The Vacancy Clause

Most homeowners policies include a vacancy clause, a provision that significantly limits or eliminates coverage after your home sits unoccupied for a defined period. Insurers draw sharp distinctions between vacant (no residents or furniture), unoccupied (furnished but temporarily not lived in), and occupied homes. Many insurers limit or exclude coverage after 30 to 60 days, particularly for vandalism, water damage, and other losses. This is one of the most misunderstood and financially dangerous exclusions during a renovation project.

There is one important nuance to know for 2026. Many standard homeowners forms say a dwelling that is actively being constructed, renovated, or repaired is not considered vacant, which can preserve coverage under the vacancy exception. However, insurers and courts generally look for active, ongoing work, not a project that has stalled or exists only on paper. If your renovation pauses for weeks or the home sits empty between phases, you can slide right back into vacancy territory.

Once that threshold is crossed, insurers commonly restrict or exclude claims for theft, vandalism, glass breakage, and certain water damage. If your renovation will leave your home vacant for more than 30 days, a vacant home insurance policy is likely your best solution. Standard coverage simply won't hold.

Increased Hazard Provisions

Renovation activity dramatically raises a home's risk profile. Open framing, flammable materials, power tools, and temporary electrical work all increase the probability of a loss. Many policies include an increased hazard clause that allows the insurer to deny a claim, or even cancel the policy, if the home's risk level has materially changed without notification. Major structural work, additions, or a full gut renovation almost always qualifies as a "material change in hazard."

Contractor Work Exclusions

Standard homeowners policies generally do not cover damage caused by contractor error or workmanship. Neither homeowners insurance nor renovation coverage will pay if the contractor is sloppy, installs something incorrectly, or you're simply unhappy with the finished results. The expectation is that the contractor's own general liability insurance covers these incidents, which is exactly why verifying every contractor you hire carries active, adequate insurance is non-negotiable. See our full breakdown of common home insurance exclusions that may apply during and after your project.

Builder's Risk Insurance vs. Homeowners Insurance: Which Do You Need?

For larger renovation projects, builder's risk insurance (also called "course of construction" insurance) is often the right tool, and sometimes a contractual requirement from your lender or municipality. For projects exceeding roughly 10% of your home's value, a Builder's Risk policy protects materials, fixtures, and the structure while work is active. It does not replace liability coverage, which your contractor must carry separately.

A newer alternative worth asking about is a dwelling under construction endorsement added to your homeowners policy. Unlike standalone builder's risk, this endorsement can bundle premises liability for visitors injured during construction along with property coverage, but it generally requires that you use a licensed contractor. For ground-up projects, review how new home insurance and builder's coverage work together before your project breaks ground.

2026 Builder's Risk Cost Snapshot

Builder's risk insurance typically costs between 1% and 5% of the total project value in 2026, with most residential renovations landing in the 1% to 3% range. Renovation-specific rates often run $1.80 to $3.50 per $100 of project value, and renovations on older structures price higher because the existing structure adds risk. Small residential jobs frequently trigger minimum premiums around $375 to $425 from major carriers, and most 6- to 12-month residential policies fall between $400 and $3,000 in total premium.

Builder's risk policies are temporary. Standard terms usually run 6 to 12 months, with the option to extend if the project runs long. They do not replace homeowners insurance permanently. They fill the gap during active construction.

If your home is finished but sitting empty (perhaps you've moved out to sell or are between tenants), that's a different situation. A vacant home policy covers a completed but unoccupied property, while builder's risk covers a home actively under construction.

When Is Builder's Risk Required?

• Additions that increase square footage
• Full gut renovations or structural overhauls
• Projects financed through a construction loan (lenders typically mandate it)
• Renovations exceeding roughly 10% of the home's value
• Any project where the home will be unoccupied for 30+ days during active work

Liability, Theft, and Mid-Construction Claims

Contractor Injury Liability

Homeowner liability for contractor injuries is nuanced and varies significantly by state. Under premises liability laws, property owners may generally be held responsible for injuries caused by negligence in failing to maintain the property in a reasonably safe condition. If a contractor is injured because of a condition that the homeowner would reasonably have been expected to discover and correct, the homeowner may be liable for negligence in a personal injury lawsuit.

Choosing to oversee some or all of a project might make a homeowner liable for anything that happens to a worker on the job site, because the person or entity in control of how or when a contractor works may be liable for the safety of those workers. If you hire a licensed contractor with active workers' compensation, that contractor's policy is normally the primary source of coverage for on-the-job injuries. Hiring an unlicensed or uninsured worker, or actively directing the work, dramatically increases your personal exposure. As of 2026, California now requires every licensed contractor to keep workers' compensation on file with the state licensing board, even those who claim to have no employees. Always confirm workers' compensation is in force before any worker sets foot on your property.

Theft of Building Materials

Building materials left on-site overnight (lumber, appliances, copper pipe, fixtures) are attractive targets for theft. Standard homeowners insurance may cover theft of materials under the personal property portion of your policy, but coverage limits and sub-limits vary widely. Builder's risk insurance is specifically designed to cover this exposure and is a stronger protection during active construction.

Damage During Construction

Accidental damage during construction (a wall collapsing, a pipe burst from demo work, fire from a welder's spark) is often excluded from standard homeowners policies if it results from construction activity. Builder's risk insurance picks up this exposure. For projects where you're staying in the home, coordinate closely with your insurer to understand exactly what is and isn't covered while work is underway.

For water-related damage specifically, understanding your base policy is critical. Learn more about what water damage homeowners insurance covers before any plumbing work begins.

Notifying Your Insurer & Updating Coverage After Renovation

When to Notify Your Insurer

Failing to notify your insurer before a major renovation can result in a denied claim, policy cancellation, or a finding that you were underinsured at the time of loss. New research shows how widespread the underinsurance problem has become. A Harvard Business School working paper linked to roughly 100 million U.S. mortgages found the average homeowner with a mortgage insures only 70% of what it would cost to rebuild their home. A University of Colorado study of the 2021 Marshall Fire found that 74% of policyholders were underinsured after the fire, with 36% severely underinsured, holding dwelling limits below three-quarters of their home's replacement cost. A renovation only widens that gap. Learn more about the risks of being underinsured on your homeowners policy.

Updating Your Policy After Renovation

Once work is complete, updating your policy is just as important as the coverage you arranged before it started. A major renovation can significantly increase your home's rebuild cost, which is the basis for your dwelling coverage. With construction cost inflation continuing in 2026, failing to update limits is the fastest way to slip into underinsurance.

Steps to take post-renovation:

1. Request a replacement cost reassessment from your insurer or a licensed appraiser
2. Increase your dwelling coverage to reflect the higher rebuild cost, not just any market value increase
3. Document all completed work with photos, receipts, and permits
4. Review your liability limits if you added a pool, deck, or other risk-increasing feature
5. Ask about discounts for new roofing, updated electrical, and energy-efficient systems

Understanding how rebuild cost vs. home value affects your coverage limits is essential after any significant project. If your renovation pushed your home into a higher value tier, revisit your overall home insurance coverage needs to ensure every coverage tier scales with the new replacement value. Adding an inflation guard endorsement or upgrading to guaranteed replacement cost coverage can further protect against rising rebuild costs.

Additionally, if your renovation involved structural changes or alterations that might need to meet updated building codes in the event of a future loss, ordinance or law coverage is worth adding. Standard policies don't cover the extra cost of rebuilding to current code requirements, a critical gap also discussed in our guide on structural damage and home insurance and building code compliance coverage.

Frequently Asked Questions

Does homeowners insurance cover damage that happens during a renovation?

Standard homeowners insurance offers limited coverage during a renovation. It may cover sudden and accidental losses unrelated to construction activity, but damage caused by contractor error, construction-related incidents, or work performed on the structure is typically excluded. For comprehensive protection during active work in 2026, builder's risk insurance or a dwelling under construction endorsement is recommended. Always notify your insurer before work begins to understand exactly what your policy will and won't cover.

Do I need to notify my insurance company before starting a renovation?

Yes, especially for any project involving structural changes, additions, high-value upgrades, or work that will leave the home vacant. Most industry guidance now points to notifying your carrier when a project runs around $50,000 or more, or involves anything that changes the home's structure or replacement cost. For minor cosmetic updates like painting or new flooring, notification may not be strictly required, but it's still a best practice to confirm this with your agent directly. Failing to notify can result in denied claims or policy cancellation due to undisclosed material changes.

What is a vacancy clause and how does it affect my renovation coverage?

A vacancy clause is a policy provision that restricts or eliminates coverage after a home sits unoccupied for a set period, usually 30 to 60 consecutive days. If you move out during a lengthy renovation, your insurer may deny claims for vandalism, theft, glass breakage, and certain water damage once that threshold is crossed. Some policies exempt homes under active construction or renovation, but insurers and courts require the work to be truly ongoing. To avoid this coverage gap, consider a vacant home policy or a vacancy endorsement for the duration of the project.

How much does builder's risk insurance cost in 2026?

Builder's risk insurance typically costs between 1% and 5% of the total project value in 2026, with most renovations falling in the 1% to 3% range, or roughly $1.80 to $3.50 per $100 of project value. A $100,000 renovation might run $1,000 to $5,000 in premium, while a $250,000 project could cost $2,500 to $10,000. Coastal locations, wildfire zones, older structures, and longer project timelines push rates higher, while clean claims history and licensed contractors help keep premiums down.

How do I update my homeowners insurance after a renovation increases my home's value?

Start by requesting a replacement cost reassessment from your insurer or an independent appraiser. Provide documentation of the completed work (permits, contractor invoices, before-and-after photos) and ask your insurer to recalculate your dwelling coverage limit based on the updated rebuild cost. Also review your liability limits if you added features like a pool or deck, and ask about discounts for risk-reducing upgrades like new roofing, updated electrical systems, or leak detectors.