Galveston County is a first-tier windstorm county. That means a re-roof here is not just a roof — it is a certificate, an inspection, and your TWIA eligibility.
League City sits in Galveston County, and that single fact changes how a roof gets replaced here. Galveston is one of the fourteen first-tier coastal counties in the Texas Department of Insurance windstorm program, named as a whole county with no carve-out. Everything below follows from that.
The hinge is a definition. Title 28 of the Texas Administrative Code, section 5.4601, defines “construction” to include “repairing (including reroofing).” A re-roof is construction. That pulls the job into the windstorm inspection program, and from there into Texas Insurance Code section 2210.258(b), which says the Texas Windstorm Insurance Association “may not insure a structure… until a certificate of compliance has been issued.” A roof replaced without that certificate can cost a homeowner their windstorm coverage.
League City did not leave that to the state. The city wrote it into its own building code. The amendment to IRC R907.1 in Ordinance 2022-06 requires a permit for every residential roof replacement, and requires the contractor to supply a TDI report certifying compliance with windstorm specifications. Skip the windstorm work here and it is not only insurance at stake — the city permit never properly closes out.
There is a wrinkle worth knowing, and it is current. League City’s own ordinance adopts the 2021 International Residential Code. But 28 TAC section 5.4013 took effect on 1 April 2026, and windstorm certificates are now measured against the 2024 IRC. Your city permit and your windstorm certificate are being judged against two different editions of the code at the same time. That is a non-issue for a contractor who works this jurisdiction every week. It is a real problem for one who does not.
The paperwork itself is straightforward once you know it. The residential re-roof permit is $150, doubled to $300 if work starts before the permit issues. Contractors register with the city annually for $150 and must carry at least $250,000 in coverage with the City of League City named as certificate holder. And the residential permit application carries an unusual line: warranty information, signed by the property owner. You put your name to what you were promised, before the permit issues.
On weather, the record is not what most people assume. The NCEI storm database for Galveston County from 2015 through 2025 shows twelve hail days and twenty-seven thunderstorm wind days. That is roughly one hail day a year — modest by North Texas standards — against nearly three wind days a year, both peaking in May. League City is a wind market wearing a hail market’s reputation. The largest stone in the eleven-year record fell on 31 May 2024 at 2.75 inches, reported at Dickinson, in League City, and at the League City airport. The hardest measured gust was 72 knots on 10 April 2024, from the anemometer on the radio tower at the Dickinson police department.
And the roofs are due. Of roughly 44,900 housing units in League City, 13,749 — 30.6 percent — were built between 2000 and 2009. Those are seventeen to twenty-six years old, dead centre of the replacement window for an asphalt roof. Add the 7,349 units from the 1990s and about twenty-one thousand roofs in this city are at or past the end of their service life. Nearly three quarters of them are owner-occupied.
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View Roof Maintenance →The windstorm sequence has an order and it only works one way. The WPI-1 application goes to TDI before the city permit is pulled; a TDI-appointed qualified inspector — a licensed Texas professional engineer — inspects the work; the inspector files the verification; TDI issues the WPI-8 certificate. Done in that order, your TWIA eligibility is never in question. Done backwards, you are chasing an after-the-fact certificate on a roof nobody watched go on.
League City permits against the 2021 IRC under Ordinance 2022-06. Windstorm certificates have been measured against the 2024 IRC since 28 TAC 5.4013 took effect on 1 April 2026. A roof can satisfy the city and still stall at the certificate if the crew built to the permit alone. We detail the assembly to the standard that has to certify, then let the city inspection be the easy one.
League City’s residential permit application asks for warranty information signed by the property owner. Most cities never ask. We hand you the written workmanship warranty and the manufacturer paperwork up front, because you are going to be asked to put your name to it — and because a warranty you have actually read is worth more than one filed away unopened.
Don't see your question? Call us at (469) 936-7663 — we're happy to talk it through.
Yes, on every residential roof replacement. The city amended IRC R907.1 in Ordinance 2022-06 to require it. The permit is $150, and the fee schedule states that any work done without a permit is subject to double the permit cost — so $300 if the tear-off starts first.
The WPI-8 is the Texas Department of Insurance certificate of compliance that proves a structure meets windstorm standards. Because 28 TAC 5.4601 defines “construction” to include reroofing, a League City re-roof needs one. The WPI-1 is the application that starts the process before the work; the WPI-8 is the certificate that comes out the other end.
Two things. Texas Insurance Code 2210.258(b) says TWIA may not insure the structure until a certificate of compliance has been issued, so your windstorm coverage is exposed. And because League City wrote the TDI report into its own R907.1 amendment, the city permit does not properly close either. There are narrow statutory off-ramps under 2210.258(c) and a 30-day temporary policy under (d), but none of them is a plan.
Almost. Galveston County is named whole, so the Galveston County portion of League City — which is effectively all of its housing — is inside it. League City also crosses into Harris County, and the Harris inclusion covers only five named cities east of State Highway 146, which League City is not. If your address is on the Harris side, confirm it with TDI directly rather than assuming either way.
Ordinance 2022-06 adopts the 2021 editions of the IRC, IBC and the rest of the I-code family; the city’s development codes page adds the 2023 National Electrical Code and the 2021 International Fire Code. Note that this is the code your permit is judged against, not necessarily the one your windstorm certificate is judged against — since 1 April 2026 that has been the 2024 IRC.
Not on new residential construction. League City amended IRC R905.7 and R905.8 to prohibit wood shingles and wood shakes as a roofing material on new residential structures, with a single square allowed vertically for decorative purposes. Repairs to an existing wood roof are permitted where the damage is under 25 percent of the total roof area.
TDI’s Galveston County wind zone map places League City in Inland I, a 120 mph three-second-gust design wind speed. Friendswood next door is Inland II at 110 mph and Galveston Island itself is Seaward at 130 mph. The city does not publish its own ordinance wind-speed figure, and the TDI zone value and an adopted IRC table value are two different things — we confirm the governing number with the building department on every job rather than quoting one from memory.
Less than people think. NCEI logged twelve hail days in Galveston County across eleven years, about one a year, against twenty-seven thunderstorm wind days. The county’s biggest hail day in that record was 31 May 2024 at 2.75 inches, with reports in League City itself. But the damage pattern here is driven more by wind than by ice, and both peak in May.
The city states that all construction work may be conducted between 7 a.m. and 7 p.m. each day, with work outside those hours subject to the noise ordinance. Unlike some neighbouring cities, League City’s published answer does not carve out Sundays or holidays separately.
Yes. League City requires annual contractor registration at $150, with proof of insurance naming the City of League City as certificate holder and a minimum of $250,000 in coverage. Texas has no state roofing licence, so in a city like this one the municipal registration is the only governmental check there is. It is worth asking to see it.
Call us at (469) 936-7663, or request your free estimate online — most inspections are scheduled within 24–48 hours.
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