Texas Windstorm Insurance Association

TWIA is the Texas insurer of last resort for wind and hail in designated coastal areas. It exists for eligible homes and businesses that cannot obtain windstorm coverage in the private market. A TWIA policy is not a complete homeowners policy: it focuses on wind and hail damage, while separate insurance must address other home risks such as fire, theft, liability, and often flood.

The exam's Texas outline includes Texas Windstorm Insurance Association and related property rules. The exam concept is the match between location, availability, and construction standards. A property must be in the designated catastrophe area, the owner must generally have tried and failed to secure private wind coverage, and the structure must satisfy TDI building and inspection requirements. A coastal ZIP code alone does not guarantee eligibility.

Where does TWIA operate?

TWIA territory is not the entire Texas coast in a loose geographic sense. TDI designates catastrophe areas, including the first-tier coastal counties and specified locations in Harris County. TDI's current windstorm resources list 14 counties along the Gulf Coast and certain cities east of Highway 146 in Harris County. The exact property address and city boundaries matter; verify eligibility against TDI's current map rather than relying on a county nickname or a mailing address.

The structure also must be in the program area. A home outside the designated catastrophe area usually cannot buy a TWIA policy even if it faces hurricane winds. Outside that territory, wind and hail may be included in the homeowners policy, perhaps with a separate percentage deductible. Near the coast, a standard insurer may exclude wind/hail and leave the owner to seek TWIA or a private standalone wind policy.

TDI describes the designated counties as Aransas, Brazoria, Calhoun, Cameron, Chambers, Galveston, Jefferson, Kenedy, Kleberg, Matagorda, Nueces, Refugio, San Patricio, and Willacy; portions of Harris County are also included. This list identifies where to start, not a substitute for checking the address. TDI's map and program rules control the actual boundary.

How does a property qualify?

First, the applicant needs to show that wind and hail coverage cannot be obtained from a private insurer, subject to TWIA's current application requirements. A private homeowners quote may exclude wind; the agent should document that gap and determine whether the private market declined the wind peril itself. An owner should not treat 'my company will not write a full homeowners policy' as automatic proof if private wind coverage is separately available.

Second, the property must meet applicable construction and inspection rules. Most homes and other structures need a windstorm certificate of compliance showing that construction, an addition, a re-roof, or repair work meets TDI's adopted code requirements. TDI issues certificates for ongoing work and completed work. A contractor or owner should arrange inspection during construction when required; waiting until after walls or roof coverings hide the work can make certification harder.

Code requirements change over time. TDI says that beginning April 1, 2026, WPI-1 applications must be certified under the 2024 International Residential Code or 2024 International Building Code. The designated catastrophe areas themselves remained the same with that code update. That effective date makes older windstorm advice risky: a builder or owner should verify which code applies to the permit and project date before beginning work.

Older structures can have separate paths and documentation, and some residential property without a certificate may still qualify subject to surcharges or specific TWIA rules. Do not promise that every older home is exempt or that a missing certificate is an automatic denial. The owner's agent should confirm the property's construction date, work history, existing certificate, and current guideline. Federal Coastal Barrier Resources areas have their own limitations and permit-history conditions.

A property may also need flood insurance before TWIA will issue coverage, depending on location and applicable rules. This is not because TWIA covers flood; it does not. It is a separate eligibility or risk-management condition. Get the exact requirement from the agent and the current TWIA/TDI materials before binding the policy.

What TWIA does and does not cover

A TWIA contract generally insures against wind and hail damage, including eligible loss from a hurricane, thunderstorm, or tornado. The policy can cover the described structure and covered property within its limits. It does not ordinarily cover flood or storm surge. Wind-driven water can be a difficult cause-of-loss issue; the policy definition and physical evidence determine whether damage came from wind-created opening, rising water, or another excluded source.

TWIA is not a substitute for the dwelling, personal property, additional living expense, liability, or medical-payments protections in a homeowners policy. A homeowner may have a private-market policy for fire and theft and a separate TWIA contract for wind and hail. Make sure each policy lists the correct insured, address, mortgagee, dwelling amount, and effective dates. If the home is a condominium or rental, the unit owner's or landlord's policy structure adds another layer.

A TWIA windstorm deductible may be expressed as a percentage of the insured value rather than a fixed dollar amount. A percentage deductible can create a substantial out-of-pocket share when the dwelling limit is high. Read the declarations carefully: identify the wind/hail deductible, the base amount to which it applies, whether different deductibles apply by event, and how a named storm is defined. A lender may require coverage but does not choose a deductible that is comfortable for the owner.

Coverage limits, valuation basis, optional endorsements, and policy terms can differ. The association's agent guidelines, current policy form, and declarations decide the protection. Do not rely on a general statement such as 'TWIA covers hurricanes' to conclude that every hurricane-related expense is paid. A hurricane can bring wind, rain, surge, inland flood, debris impact, and power loss; the policy treats causes and resulting damage under its own definitions.

Buying coverage before a storm

TWIA warns homeowners not to wait until a hurricane is in the Gulf. Coverage may be unavailable once a storm is approaching or under an active binding restriction. An agent should confirm when a policy can take effect and whether a moratorium or underwriting restriction blocks new coverage. A quote, application, or pending inspection is not bound coverage.

The application should identify the property, construction details, desired limit, mortgagee, and any required certificate. The agent can compare private wind coverage with TWIA and explain the conditions attached to each. Keep written proof of the declination, certificate, application, binder, and payment. Verify the actual effective date and whether an initial payment or signed document is required before coverage starts.

Do not cancel the existing homeowners wind protection until the replacement policy is active. If a private carrier renews the homeowners policy but removes wind, that change may leave a gap between the property policy and TWIA. Review both effective dates and confirm exactly when wind protection transfers. During hurricane season, a single day without coverage can matter.

What happens after a TWIA loss?

TDI says TWIA claims follow a process similar to homeowners claims, but TWIA has special statutory handling deadlines. TDI's current consumer guidance says policyholders generally have one year from the storm to file a claim, 60 days from TWIA's acceptance to dispute the amount and request appraisal, and a special decision/payment timeline. Always check the current TWIA policy and official claim instructions for exceptions, extensions, and the precise starting event.

After damage, protect the home from further loss with temporary repairs, photograph each affected area before permanent work, save receipts, and report the claim promptly. Keep a record of the storm date, time, address, and visible conditions. Separate wind-created roof or wall openings from water entering at ground level if the evidence supports that distinction. A mitigation invoice shows work performed but does not prove every item is covered.

If the adjuster's estimate misses damage, submit photographs, contractor estimates, code information, and any engineering report that directly addresses the disputed scope. You may use TWIA's claim review and appraisal procedures as the contract and law provide. A contractor can help explain repair scope, but the insurer's coverage decision depends on policy terms and evidence. Do not make permanent repairs before reasonable inspection unless urgent mitigation requires it; document what you do.

A worked coastal-home example

A homeowner in Galveston County receives a standard homeowners renewal that excludes wind and hail. The property lies in TWIA's designated area. The owner asks an agent for private standalone wind coverage and is declined. The home's roof was replaced recently, and a certificate of compliance exists. Those facts support an application, but the agent must still check the precise address, certificate status, underwriting details, flood requirements, available limits, and any current binding restriction.

The owner binds TWIA with a wind deductible and keeps a separate homeowners policy for other causes. Before the next storm, she confirms both policies list the same insureds and mortgagee, the dates are continuous, and the dwelling limit reflects current rebuilding costs. She also reviews whether she needs a separate flood policy. If storm surge later damages the first floor while wind removes shingles, she will likely have two separate cause-of-loss questions and possibly separate insurers.

A competing case: a homeowner outside the designated area has hail damage and assumes TWIA will help because the storm crossed the coast. If the exact location is outside TWIA's territory, TWIA cannot provide the fallback policy. The homeowner must look to the existing homeowners contract or available private coverage. Territory is a threshold issue before claim details.

Mistakes to avoid

• Treating TWIA as a full homeowners policy.
• Assuming every coastal address is inside the designated catastrophe area.
• Assuming the 2024 building code remains the current standard for all 2026 construction applications.
• Waiting for an approaching hurricane to apply; binding restrictions may prevent new coverage.
• Assuming a windstorm policy covers storm surge, flood, rain intrusion, or all hurricane losses.
• Overlooking percentage deductibles or the difference between a quote and bound coverage.
• Canceling private wind coverage before the TWIA policy is effective.

Frequently asked questions

The territory map, current TWIA guidelines, construction rules, and issued policy determine eligibility and coverage. Verify them for the specific property and project date.