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Flooding is an increasingly serious concern across the US, with climate change driving more frequent and severe flood events. Urban expansion into flood-prone areas, aging infrastructure and shifting weather patterns have all contributed to rising flood risks.

Key takeaways

  • Many assume standard homeowners' insurance covers floods — it doesn't!
  • Risks of uninsured flooding include financial hardship, difficulty rebuilding and reliance on uncertain federal aid. Flood insurance helps ensure financial stability and enables swift recovery after a flood.
  • Protect yourself by being aware and staying informed, knowing your flood risk and understanding coverage gaps.
  • Be prepared by creating an emergency plan and safeguarding important documents.

Understanding the risk: How serious is flooding?

Flooding is the most common natural disaster in the US, affecting both coastal and inland communities. According to the Federal Emergency Management Agency (FEMA), over 99% of US counties have experienced a flooding event. While every state has designated special flood hazard areas (SFHAs,) the National Flood Insurance Program (NFIP) reports that over 40% of flood claims come from properties outside these areas.1 Homes located in moderate flood hazard areas or areas of minimal flood hazard that are higher than the elevation of the 0.2-percent-annual-chance flood aren't immune to flood damage.

The average flood damage claim through NFIP was $52,000 between 2019 and 2023,2 but actual losses can range from $20,000 to well over $100,000 depending on the severity of the event.3

Impact of climate change

Climate change is driving an increase in the frequency and severity of floods. Rising global temperatures lead to:

  • More intense storms
  • Heavier rainfall
  • Higher sea levels

The US has experienced a 20% increase in extreme rainfall events over the past 50 years. The average sea level has risen 8-9 inches since 1880, increasing storm surge impacts. 4

Flood maps and risk assessment

Accurate and up-to-date flood mapping is critical for risk assessment. FEMA updates flood maps to reflect changes in:

  • Rainfall patterns
  • Topography
  • Urban development
  • Modification of the existing regulatory floodway
Historically, it's been challenging to convince policyholders — especially existing customers — to buy flood insurance unless they reside in designated flood zones. Many homeowners mistakenly believe they're safe from flooding if they don't live in high-risk flood zone areas. It is crucial to educate policyholders about the reality that floods can occur anywhere it rains.
Gosha Olszewski, director, Inside Sales — Personal Insurance

Preparing for a flood: What homeowners and renters need to know

  • Check FEMA flood maps to determine your flood zone.5
  • Consult local officials for historical flood trends and mitigation efforts.
  • Assess future risks by reviewing past flooding and weather patterns.
  • Improve drainage around your home and waterproof basements.
  • Keep gutters clear and install backflow valves to prevent water backup.
  • Reinforce doors, windows and vents with weatherproof seals.
  • Install professionally designed flood barriers around entry points or the entire property.
  • Elevate electrical systems (outlets, switches, appliances) above flood level.
  • Use flood-resistant materials (tile, water-resistant drywall, sealed concrete).
  • Install sump pumps with battery backups to drain sub-grade areas.
  • Identify evacuation routes and set a family meeting location.
  • Take a video of first-floor conditions to document original conditions.
  • Establish a communication plan with family and neighbors.
  • Stock up on food, water, first aid kits, flashlights and batteries.
  • Secure essential documents (insurance, IDs, deeds) in waterproof containers.
  • Review insurance policies, consider flood insurance and maintain a home inventory for claims. 6

Keep in mind that flood insurance must be in effect 30 days before an event. In the face of a flood, it's already too late!

By taking these proactive measures, homeowners and renters can enhance their resilience against floods, minimize damage and ensure a quicker recovery in the event of a flood. Proper planning, structural reinforcements and financial preparedness are key to safeguarding both property and personal wellbeing.

Recovering after a flood: Immediate actions post-flood

A flood can leave homeowners facing significant challenges, from structural damage to potential health hazards. Taking the right steps immediately after the floodwaters recede can help ensure safety, streamline insurance claims and facilitate recovery.

Before re-entering your home, follow local advisories and take necessary precautions to protect yourself and your family:

  • Avoid floodwaters: Standing water may be contaminated with sewage, chemicals or debris and can pose serious health risks.
  • Watch for electrical hazards: Flooding can cause electrical shorts, so turn off power at the main breaker if safe to do so.
  • Wear protective gear: Use gloves, masks and boots when inspecting damage to avoid exposure to mold, bacteria and sharp objects.

Thorough documentation is essential for a smooth insurance claims process.

  1. Notify the insurer immediately to begin the claims process and get guidance on the next steps.
  2. Take clear photos and videos of all affected areas, including structural damage, water levels and ruined personal belongings.
  3. Create an inventory list of damaged items with descriptions, approximate values and purchase receipts if available.
  4. Save all repair and cleanup receipts for reimbursement purposes.

If your home is uninhabitable, several resources can help with temporary housing and financial assistance:

  • FEMA: Homeowners may qualify for financial aid, temporary housing or grants for essential repairs.
  • Local relief organizations: Agencies such as the American Red Cross and community shelters can provide short-term housing and supplies.
  • Insurance coverage: Review your policy for provisions covering additional living expenses for hotel stays or rental accommodations while repairs are underway.

Taking these immediate actions can help homeowners recover efficiently after a flood, ensuring safety, securing necessary resources and expediting the insurance claims process.

Understanding the claims process

Navigating the flood insurance claims process can feel overwhelming, especially in the aftermath of a disaster. Understanding the key steps, documentation requirements and the role of adjusters can help policyholders streamline their claims and expedite financial recovery.

Step 1: File notice of loss. Notify the insurer immediately after the flood.

Step 2: Adjuster inspection (24-48 hours). The adjuster assesses damage and policy coverage.

Step 3: Submit required documents. Essential documents include:

  • Flood insurance declaration page
  • Proof of loss statements
  • Photos/videos of damage
  • An itemized inventory of losses
  • Receipts for repairs and temporary housing
  • Proof of ownership

Step 4: Documentation review. The insurer evaluates submitted documents and claim details.

Step 5: Settlement and payout. Approved claims receive compensation based on policy coverage.

Insurance as part of preparedness: Why homeowners and renters need flood insurance

Standard homeowners' insurance excludes flood damage, leaving property owners vulnerable to financial loss. To protect against this risk, homeowners can purchase flood insurance, which covers structural damage and personal belongings.

Renters, on the other hand, don't have homeowners' insurance but can obtain renters' insurance. However, standard renters' insurance doesn't cover flood damage. To protect their belongings, renters need a separate flood insurance policy, such as one offered through NFIP or private insurers. Additionally, some policies may include coverage for temporary housing costs if they're displaced. With rising flood risks, securing the right type of flood insurance is a key step in risk management.

Other kinds of flooding

Beyond natural disasters, other scenarios can lead to flooding, according to Richard Gutierrez, senior claims advocate. "For instance, a catastrophic water release from a broken water main can cause flooding if it enters your home. However, your homeowner's insurance policy typically doesn't cover this type of flooding," he explains.
"Water damage caused by a plumbing issue, such as a burst pipe or a leaking water heater, is typically covered by standard home insurance policies. This coverage applies if the damage is sudden and accidental, rather than due to neglect or gradual wear and tear. However, it's important to note that this is different from flood damage, which requires separate flood insurance."
Gutierrez adds, "Many people mistakenly believe that isolated water intrusion events, such as sewer backups, are considered flooding. However, unless a flood directly causes the sewer backup, the two are not connected. Some homeowners' insurance policies offer optional sewer backup coverage, which can be an important add-on for additional protection."

NFIP vs private flood insurance: Which is right for you?

A common misconception is that homeowners outside of SFHAs don't need flood insurance or are ineligible for coverage. Flooding can occur anywhere, and many properties in moderate to low-risk areas, such as FEMA Zone X, may still be vulnerable.

NFIP

The NFIP, managed by FEMA, is the primary source of flood insurance in the US and offers standardized coverage for residential and commercial properties in participating communities.

NFIP has the following coverage limits, coverages and exclusions:

  • $250,000 for residential building structures
  • $100,000 for personal property. 7
  • 30-day waiting period before an NFIP policy takes effect, except for new home purchases or policy renewals tied to certain loan requirements. 8
Covered under NFIP Not covered under NFIP
  • Structural damage
  • Essential systems
  • Personal property
  • Additional living expenses
  • Basement improvements
  • Other losses that may be significant during a flood event

Private flood insurance

Private flood insurance is an alternative to NFIP policies and offers more flexibility for coverage and policy customization. Private insurers are expanding their offerings to meet growing demand. Key advantages of private flood insurance include:

Higher coverage limits: Many private insurers offer coverage limits well beyond the NFIP cap, making them a better option for high-value homes and properties. 9

Additional coverages: Unlike NFIP, private policies offer expanded coverage, including temporary housing costs, basement-stored personal property and detached structures. Private flood insurance offers broader protection for flood-damaged furniture, clothing, electronics and appliances throughout the home.

Shorter waiting periods: Some private insurers provide coverage with waiting periods as short as 10-14 days, or even immediate coverage in some cases. 10

Customized risk assessment: Private insurers use advanced risk modeling to assess flood exposure, which may result in more competitive pricing and tailored coverage options.

The need for insurance advisors

Flood insurance needs to be viewed as a fundamental component of financial preparedness rather than an optional add-on. Selecting the right option depends on individual coverage needs, property value and risk exposure. Consulting with an insurance advisor can help homeowners and renters determine the best fit for their specific circumstances.

Gallagher's insurance advisors can offer expert guidance to ensure you have the right coverage in place. Our consultants can guide you through:

  • Risk assessment
  • Tailored coverage
  • Policy language
  • Claims support
  • Dispute resolution
  • Recovery assistance

Contact our insurance advisors for a personalized flood risk assessment.

For policyholders seeking further guidance, Gallagher provides dedicated claims support and contact information at AJG Home and Property Insurance Claims Contacts.


Sources

1"Flood Insurance Protects You All Year Long," FEMA, 21 Jan 2025.

2Masterson, Les. "Flood Insurance: What It Is and What It Covers," Forbes, 28 Jan 2025.

3Robbins, Brian. "Home Water Damage Statistics 2025," HouseCashin, 29 Jan 2025.

4Lindsey, Rebecca. "Climate Change: Global Sea Level," NOAA, 22 Aug 2023.

5"FEMA Flood Map Service Center," FEMA, accessed 19 Jun 2025.

6"Basic Preparedness," FEMA, accessed 6 March 2025. PDF file.

7"Flood Insurance and the NFIP," FEMA, 21 Jan 2025.

8"Flood Insurance," FEMA, 24 Jan 2025.

9Besson, Aaron. "Private Flood Insurance vs. NFIP," LendingTree, 27 Mar 2024.

10Guinan, Stephanie. "How Long Is the Flood Insurance Waiting Period?" ValuePenguin, 24 Jun 2024.