Texas hail season: what every Houston homeowner needs to know
Houston sits at the southern edge of "Hail Alley" — the corridor where Gulf Coast warm air collides with cold fronts from the north to produce some of the most damaging hail in the country. Here's what you need to know before the next storm hits.
When is hail season in Texas?
Texas has two hail risk windows. The primary season runs March through June — peak months are April and May, when warm, moist Gulf air collides with cold fronts pushing down from the north. Supercell thunderstorms form along these boundaries and carry hailstones that can reach baseball size or larger.
A secondary window runs September through October, as summer heat begins to transition to fall and frontal activity picks up again. The storms are typically less severe than spring, but they still produce damaging hail regularly.
The Houston metro and surrounding SE Texas communities are hit multiple times per year on average. League City, Friendswood, Pearland, and Pasadena have all experienced multiple significant hail events in the past five years. If you haven't had your roof inspected recently, there's a reasonable chance you already have unreported damage you don't know about.
How big does hail need to be to damage your roof?
Hail size determines damage risk, but your shingle type matters just as much. Here's how hail size maps to damage risk for standard architectural shingles:
Impact-resistant Class 4 shingles change this equation significantly. They are tested to withstand 2-inch steel ball impacts at controlled velocity with no cracking or rupture. In a typical Texas hail event (¾–1.5 inch hail), a Class 4 roof will show little to no functional damage where a standard architectural shingle roof would require replacement.
How to spot hail damage on your roof
Most hail damage is not visible from the ground. You need to either get on the roof (carefully, with appropriate safety equipment) or hire a professional to inspect. But there are ground-level clues that suggest hail damage worth investigating:
- Granules in your gutters or at downspout exits. Some granule loss is normal for any roof, but a significant deposit after a storm is a red flag. Granule loss exposes the asphalt layer underneath to UV degradation, shortening roof life.
- Dented or dimpled metal. Check your AC condenser housing, mailbox, garage door trim, and window sills. If metal is dented, hail was large enough to damage your roof.
- Cracked or broken window screens. Screen damage at ¾ inch+ hail indicates enough force to potentially damage shingles.
- Marks on painted wood trim. Look for chipped paint on fascia and soffits — hail impact marks are often visible.
On the roof itself, signs of hail damage to asphalt shingles include circular impact marks or "bruising" where granules are missing in a roughly round pattern, exposed black asphalt or fiberglass mat beneath the impact point, random damage pattern (not following any drainage direction), and corresponding damage on metal flashings and ridge cap.
What to do immediately after a hail storm
- Document before you do anything
Walk your property and photograph everything — roof (from the ground and angles), gutters, downspouts, windows, siding, AC units, and any interior water damage. Get timestamps on every photo automatically via your phone. This evidence matters if you file a claim. - Check for active leaks
Get into your attic and look for water stains, wet insulation, or daylight through the decking. Put buckets under active drips. Keep receipts for any emergency tarping — it's usually covered under your policy as a temporary repair. - Call your insurance company to open a claim
Do this before calling a roofer. Get a claim number and adjuster assignment. Texas law requires insurers to acknowledge your claim within 15 days and make a coverage decision within 15 business days of receiving all documentation. - Get a professional inspection
Schedule a free inspection with a local, established roofing contractor — ideally one who can attend the adjuster visit with you to advocate for a complete scope of work. Storm chasers and door-to-door crews who appear after every major storm should be approached cautiously. - Don't sign anything under pressure
Don't sign an Assignment of Benefits (AOB), which transfers your claim rights to the contractor. Don't accept a deductible waiver offer — it's insurance fraud in Texas since 2019. Don't sign a contract before you have insurer approval on the scope and cost.
The case for Class 4 impact-resistant shingles in Houston
If you're replacing a storm-damaged roof, upgrading to Class 4 impact-resistant shingles is worth serious consideration. The math usually works in your favor.
A typical Class 4 upgrade costs $3,000–$5,000 more than standard architectural shingles on a Houston home. Most major carriers serving the Houston area — State Farm, Allstate, USAA, Farmers — offer 15–30% homeowners insurance premium discounts for Class 4 installations. On a $2,400/year policy, that's $360–$720 annual savings. You typically break even within 4–8 years and then save money every year for the remaining 20+ year life of the roof.
Beyond the financial math: a Class 4 roof means the next significant hail event is much less likely to require a full replacement. You're not just buying a new roof — you're buying a roof that won't need replacing again after the next storm.
Get your inspection on the calendar before peak season
We recommend scheduling a free roof inspection before April each year — before hail season peaks and before contractor calendars fill up. A clean inspection gives you documentation of pre-storm condition, which makes any future claim easier to process.
Free post-storm inspection — no obligation
If your area was hit by hail, we'll inspect your roof at no charge, document everything, and give you an honest assessment of what needs to happen. No sales pressure.