Lifestyle
7 Things Your Homeowner’s Insurance Doesn’t Cover That Most People Assume It Does
By Mike Harper · June 23, 2026
Nearly a quarter of homeowners have never read their insurance policy, according to an Insurance.com survey. The ones who have often discover gaps only after filing a claim that gets denied. Here are seven of the most common and most expensive assumptions homeowners make about what their policy covers.
1. Flood damage
Standard homeowner’s insurance does not cover flood damage — including the kind that comes with hurricanes, storm surges, and heavy rainfall. More than 25% of flood claims occur outside designated high-risk areas, according to FEMA. Flood insurance is a separate policy, typically purchased through the National Flood Insurance Program. Average cost: approximately $700 per year. There is a 30-day waiting period after enrollment before coverage begins — you cannot buy it after a hurricane is in the forecast.
2. Earthquake damage
Like floods, earthquakes require a separate policy or endorsement. If you live in California, the Pacific Northwest, the New Madrid Seismic Zone, or any area with seismic activity, standard homeowner’s insurance will not pay for structural damage caused by ground movement. Costs vary widely by location — $200 per year in low-risk areas to $5,000 or more in high-risk zones.
3. Sewer and drain backup
Water that enters your home through backed-up sewers, drains, or sump pump failures is typically excluded from standard policies. This is one of the most common causes of basement flooding — and one of the most commonly denied claims. A sewer backup endorsement costs $40 to $100 per year and covers a risk that affects millions of homeowners every year.
4. Mold — unless caused by a covered event
If mold results from a covered peril — a burst pipe, a storm that damaged your roof — your policy may cover remediation. If mold results from long-term humidity, condensation, or maintenance neglect, it almost certainly will not. Many policies cap mold coverage at $5,000 to $10,000 regardless of the cause — far below the cost of a serious mold remediation, which can run $15,000 to $30,000 or more.
5. Home business equipment and liability
If you run a business from home — even a small one — your standard homeowner’s policy likely excludes business equipment and business liability. A client who is injured in your home office, a package of inventory damaged in a fire, or a lawsuit arising from your business activities may not be covered. A home business endorsement or a separate business owner’s policy fills the gap.
6. Renovations that increased your home’s value
If you’ve added a deck, finished a basement, installed solar panels, or made any significant renovation, your coverage limits may no longer reflect the actual cost to rebuild your home. Your policy’s dwelling coverage is based on the replacement cost at the time you purchased it. Renovations increase that cost. If you haven’t updated your coverage, you are underinsured by the amount of the improvement. Call your agent after every major renovation.
7. High-value personal property above standard limits
Standard policies typically cap coverage for jewelry at $1,500 to $2,500, art at $2,500, and electronics at $5,000 to $10,000. If you own anything worth more than those limits — an engagement ring, a watch collection, original artwork, high-end camera equipment — you need a scheduled personal property endorsement that lists and specifically insures each item.
Review your policy during open enrollment. Call your agent and ask specifically: “What is excluded from my current policy, and what endorsements would cover those gaps?” That 20-minute conversation is the cheapest insurance you can buy.