The Coverage Gap Nobody Talks About
Most business owners and homeowners believe their insurance will cover a major loss. That belief rests on the assumption that the coverage limit on the policy reflects what it would actually cost to rebuild. For a growing majority of policyholders, it does not.
Industry surveys from CoreLogic, Marshall & Swift/Cotality, and the Insurance Information Institute put the share of underinsured commercial properties at roughly 60 to 75 percent. The typical replacement-cost gap runs between 15 and 30 percent. A 2025 Hiscox report found that 77 percent of U.S. small businesses are underinsured, a two-percentage-point increase from 2023. Gallagher’s 2026 Business Owners Survey found that 94 percent of business owners are worried their insurance may not cover a specific event or loss.
The concern is well-founded. And the primary driver is one that touches every property owner: construction cost inflation.
How the Gap Opens
Between 2022 and 2025, the Bureau of Labor Statistics Producer Price Index for new commercial construction rose roughly 35 to 45 percent cumulatively. Residential construction followed a similar trajectory, driven by sustained increases in lumber, concrete, steel, roofing materials, electrical components, and labor costs across nearly every trade.
Most insurance policies use replacement cost estimates that update annually, typically based on modeling tools from Marshall & Swift or similar valuation services. Those models are sound, but they lag actual market conditions by 6 to 18 months in normal periods and 24 or more months when inflation runs hot. A policy written in 2022 at $180 per square foot and indexed at 3 percent annually sits near $197 per square foot in 2026. Actual replacement cost in most secondary metros is closer to $230 to $280 per square foot.
That is a gap of 12 to 25 percent on the building alone. For a $2 million building, it means $240,000 to $500,000 in potential exposure. And the gap is not limited to the structure.
Where the Shortfalls Tend to Cluster
Building valuation. This is the largest dollar gap and the one that drifts the most. Every year that construction costs outrun the indexing factor in your policy, the gap widens. It is cumulative, quiet, and invisible until a loss forces the math into the open.
Demolition expense. When a partial loss triggers a code requirement to demolish the undamaged portion of the building, most policies carry a sublimit at 1 to 5 percent of building value. On a $5 million building, that is $50,000 to $250,000. For a pre-1990 structure with asbestos, lead paint, or contaminated soil, actual demolition cost regularly runs $15 to $35 per square foot or more. A 30,000-square-foot older industrial building can cost $450,000 to over $1 million to demolish to grade. The policy sublimit is short by a factor of two to four.
Ordinance or law coverage. Building codes change. A structure built to 1995 code that suffers a significant loss may be required to rebuild to 2026 standards, which can mean upgraded electrical, fire suppression, ADA compliance, energy efficiency requirements, and structural reinforcement. Without adequate ordinance or law coverage, the additional cost of code compliance falls on the property owner.
Debris removal. Standard ISO commercial property forms include debris removal at 25 percent of the direct physical loss plus the deductible. On a large loss, that cap can fall well short of actual removal costs, particularly when hazardous materials are involved.
Homeowners Face the Same Problem
The gap is not exclusive to commercial properties. Homeowners in Central Texas face the same dynamic. A home insured at $350,000 replacement cost in 2021 may need $420,000 to $450,000 to rebuild today, based on current material and labor pricing in the Seguin market. If the policy limit has not kept pace, the homeowner bears the difference.
Roof coverage adds another layer of complexity. Many carriers in hail-prone and storm-prone states have shifted roof coverage to actual cash value, which deducts depreciation. Under ACV, a 15-year-old roof that would cost $60,000 to replace might settle at $25,000 to $30,000 after depreciation. The homeowner pays the rest. On an otherwise full replacement cost policy, the roof endorsement can create a five-figure shortfall that most homeowners do not discover until they file a claim.
How to Audit Your Coverage
Request a current replacement cost estimate. Ask your agent for an updated valuation based on current construction costs, not the figure from your last renewal. If the estimate was generated more than 12 months ago, it deserves a fresh look.
Check your coinsurance clause. Many commercial property policies include an 80 or 90 percent coinsurance requirement. If your insured value falls below that threshold relative to the actual replacement cost, the penalty is proportional: you effectively self-insure the gap, even on a partial loss. A 25 percent undervaluation on a policy with an 80 percent coinsurance clause can reduce a $200,000 claim payout by $60,000 or more.
Review sublimits individually. Demolition expense, debris removal, ordinance or law, and business income coverage each carry their own sublimits. Each should be evaluated against current costs, not left at the default.
Understand your roof coverage. If you are a homeowner, confirm whether your roof is covered at replacement cost or actual cash value. If it is ACV, understand the depreciation schedule and what a claim would actually pay on a roof of your age and condition.
Consider guaranteed replacement cost. This endorsement pays the full cost to rebuild even if it exceeds your policy limit, typically up to 125 or 150 percent. It is the most direct defense against the valuation gap, and in the current soft property market, the additional premium is often modest.
The Time to Close the Gap Is Now
Underinsurance is a problem that reveals itself at the worst possible moment. The coinsurance penalty, the sublimit shortfall, the ACV depreciation — none of it matters until you have a loss. Then it is the only thing that matters.
The current property insurance market is favorable for buyers. Rates are declining, carriers are competing, and coverage improvements are easier to negotiate than they have been in years. If there was ever a time to close the replacement cost gap, this is it.
Frequently Asked Questions
How do I know if I am underinsured?
Request a current replacement cost estimate from your agent and compare it to your policy limit. If the estimate exceeds your limit by 10 percent or more, you have a meaningful gap. Also check sublimits for demolition, debris removal, and ordinance or law coverage.
What is the coinsurance penalty?
If your insured value falls below the coinsurance threshold (typically 80 or 90 percent of replacement cost), the insurer reduces your claim payout proportionally. You effectively self-insure the gap, even on a partial loss.
What is the difference between replacement cost and actual cash value on a roof?
Replacement cost pays what it costs to replace the roof at today’s prices. Actual cash value deducts depreciation based on the roof’s age and condition. On an older roof, the difference can be $30,000 or more.
Is guaranteed replacement cost worth it?
For most homeowners and many commercial property owners, yes. It pays rebuild costs that exceed your policy limit, typically up to 125 or 150 percent. The additional premium is often modest relative to the protection it provides, particularly in the current market.
How often should I update my building valuation?
At least annually, and more frequently during periods of significant construction cost inflation. If your last valuation is more than 12 months old, request an update before your next renewal.
