Texas Roof Insurance Guide: TWIA, Hail, COC & Everything Coastal Homeowners Need in 2026

TWIA: Texas Windstorm Insurance Association

The Texas Windstorm Insurance Association (TWIA) is the state's insurer of last resort for wind and hail coverage in 14 designated first-tier coastal counties where private insurers have largely stopped writing windstorm coverage. TWIA is not a private company — it is a quasi-governmental entity overseen by the Texas Department of Insurance.

The 14 TWIA-Eligible Counties

TWIA Coverage Limits (2026)

If your home's replacement cost exceeds the TWIA residential limit, purchase excess windstorm coverage from a surplus lines insurer to close the gap. High-value Galveston and Corpus Christi properties are particularly exposed to this limit.

Full guide: TWIA Texas Windstorm Insurance: Complete Guide for Coastal Homeowners →

Certificate of Compliance: The Rule That Catches Homeowners Off Guard

A Certificate of Compliance (COC) is a TDI-issued document certifying that your roofing work was performed to TWIA's windstorm-resistant construction standards. Any roof replacement — or significant repair — in TWIA territory requires a COC. Without one, TWIA can deny your wind damage claim on that structure.

What Happens Without a COC

This is the most expensive mistake Texas coastal homeowners make. A homeowner replaces their roof using a contractor who doesn't coordinate the TDI windstorm inspection. The work looks fine. Years later, a hurricane damages the roof. TWIA investigates and discovers no COC on file for the replacement. TWIA denies the wind damage claim — leaving the homeowner with tens of thousands in uncovered damage on a roof they thought was fully insured.

How to Verify Your Contractor Knows the COC Process

• Ask specifically: "Will you coordinate the TDI windstorm inspection for a COC?"
• Ask for the name of the TDI-licensed windstorm inspector they use
• Ask for a copy of the COC after completion — keep it with your insurance documents
• Verify the COC was submitted at tdi.texas.gov after the job is complete

Full guide: TWIA COC Requirements: What Every Texas Coastal Homeowner Must Know →

Texas Hail Claims: The #1 Roofing Insurance Event in the Country

Texas leads the nation in hail insurance claims. The Dallas–Fort Worth metroplex, San Antonio, Houston, and the Gulf Coast experience severe hail events multiple times per year — with some storms producing softball-sized hail that destroys roofs outright.

Functional vs. Cosmetic Damage

The key dispute in most Texas hail claims is whether the damage is functional (impairs the roof's ability to keep water out) or cosmetic only (affects appearance without impairing performance). Many Texas insurers have added cosmetic damage exclusions — meaning hail dents that don't crack or penetrate the surface may be excluded from coverage. Check your policy for a cosmetic exclusion before filing.

Class 4 Shingles and Premium Discounts

Upgrading to Class 4 impact-resistant shingles — rated under UL 2218 or FM 4473 — is the most effective single investment for Texas homeowners in hail-prone areas. Most Texas insurers offer 20–30% premium discounts for Class 4 roofs, and the shingles genuinely withstand moderate hail events that would destroy standard shingles. In TWIA territory, verify that Class 4 products also meet TWIA's wind speed acceptance criteria before selection.

Full guide: Hail Damage Roof Insurance: Functional vs. Cosmetic, Class 4 Shingles & Claim Strategy →

The Three-Policy System for Texas Coastal Homeowners

Complete coverage in TWIA territory requires three separate policies purchased from three separate sources:

1. TWIA policy — wind and hail coverage for the structure and contents up to TWIA limits
2. Standard homeowners policy — fire, liability, theft, non-wind perils, personal property above TWIA contents limit
3. Flood insurance policy — NFIP or private flood coverage for flood and storm surge

After a hurricane, you may need to notify all three carriers and file separate claims with each depending on the cause of damage. Disputes about wind vs. flood causation — whether a specific area of damage was caused by the covered wind event or the uncovered storm surge — are common and are among the most litigated post-hurricane insurance issues in Texas.

Texas Contractor Rules After a Storm

Key Consumer Protections

• 3-day right to cancel — home improvement contracts signed at your home are cancellable within 3 business days
• Deductible waiver is fraud — any contractor waiving your deductible violates Texas Penal Code 35.02
• Written contract required — for work over $5,000, Texas law requires a written contract with specific terms
• No license required statewide — Texas does not have a statewide roofing license, unlike Florida; verify COC knowledge and liability insurance instead
• COC for TWIA territory — any roofing contractor working in the 14 coastal counties must coordinate TDI windstorm inspection for a COC

Full guide: Contractor License Verification: What to Check in Texas and All 13 Coastal States →

Filing a Texas Hurricane or Hail Roof Claim

1. Document before any repairs — photographs, NOAA storm records, soft metal impact evidence. See the storm damage documentation checklist.
2. File with TWIA and your standard insurer — notify both within 24–48 hours of discovering damage. TWIA has a 12-month filing deadline; Texas insurers must acknowledge within 15 days.
3. Verify your COC status — before the TWIA adjuster visits, confirm your roof's COC is on file with TDI. If it's not, consult a public adjuster or insurance attorney before the inspection.
4. Get a licensed contractor inspection — a written report documenting hail impact density, functional vs. cosmetic damage assessment, and COC-compliant replacement scope.
5. Review Xactimate estimate line by line — compare to contractor bid. Surge pricing after major storms commonly exceeds pre-storm Xactimate rates by 20–40%.
6. Invoke appraisal clause for disputes — Texas HO policies include binding appraisal provisions; this is often faster and less expensive than litigation for scope disputes.

Frequently Asked Questions