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GAF StormGuard leak barrier and synthetic underlayment on a Pearland roof replacement

Roof Replacement

League City Roof Permits: Windstorm Rules for Galveston County Homes

Yes, League City requires a city building permit before any residential roof is replaced inside city limits, and its ordinance makes a Texas Department of Insurance (TDI) windstorm report part of that permit. Smaller repairs need a permit once they pass 100 square feet. This guide covers what the city asks for, how the TDI windstorm certificate (WPI-8) works, what changed in 2026, and what to ask a roofer before work starts.

Quick answer

  • A full re-roof inside League City limits needs a city building permit before work begins.
  • The city’s FAQ says re-roofing needs a permit when more than 100 square feet (one square) of roofing is replaced.
  • The city ordinance requires a TDI report certifying windstorm compliance, provided at completion, as a condition of the permit.
  • TDI’s windstorm inspection is easiest while the roof is being built (WPI-8). Certifying a finished roof (WPI-8-E) needs a licensed engineer’s sealed report and may cost more.
  • Since April 1, 2026, TDI’s windstorm program uses the 2024 International Residential Code for new work.

Do you need a permit to replace a roof in League City?

Yes. League City’s building ordinance (Ordinance 2022-06, Chapter 22) says permits from the Building Official are required before every residential roof replacement inside city limits. That covers shingle-for-shingle tear-offs after hail, not just new homes.

For partial work, the city’s permits page and permit FAQ list re-roofing as permit work when more than 100 square feet (1 square) of shingles or roofing is replaced. Roofers price by the square, so one square is a small patch. A few missing tabs after a wind storm are usually under it. A whole slope is well over it.

Three more details from the ordinance matter to homeowners:

  • You sign part of the application. Residential permit applications must include the contractor’s information and proposal with the scope of work, the dollar amount and warranty information, signed by the property owner. Read that proposal before you sign it, because it goes to the city.
  • Applications go through the city’s online portal. The city’s permits page points to the Online Permit Portal, which also lets you search for existing permits. That’s an easy way to check that a permit was pulled for your address.
  • Wood shingles and shakes are limited. They’re not allowed as roofing on new residential structures. An existing wood roof can be repaired with wood shingles only when the repair is less than 25% of the total roof area.

The Building Department is at 500 W. Walker St., 281-554-1429, building@leaguecitytx.gov (city contact sheet). Call them with fee questions. We didn’t find a published re-roof fee on the city pages we checked, so we won’t guess one.

Why League City ties your roof permit to a TDI windstorm report

Here’s the part most permit guides skip. League City’s ordinance says whoever is responsible for the permit “shall provide, at completion,” a copy of a TDI report certifying compliance with the building specifications in the Texas Windstorm Insurance Association (TWIA) Plan of Operation, “as a condition for obtaining a permit.” In plain terms, the city wants proof that the new roof meets the coast’s windstorm building code.

The reason is location. TDI lists Galveston County among the 14 coastal counties, plus parts of Harris County east of Highway 146, that make up the designated catastrophe area. Homeowners there may not be able to buy private wind and hail coverage, so many buy it from TWIA. TDI’s WPI-8 fact sheet names Galveston County on its list of counties where homeowners need the certificate.

TWIA’s own rule is blunt. Under Texas Insurance Code Chapter 2210, a property must be certified as meeting the windstorm building code before it can get TWIA coverage, and TWIA says a property without a certificate of compliance “may be considered uninsurable.” Replacing a roof is one of the examples it gives of work that needs certifying.

Even if you carry private wind coverage today, keep the certificate. TWIA and insurers can look certificates up, and policies change. TDI also notes that a mortgage lender near the coast will likely require windstorm coverage.

Most of League City is in Galveston County, but a small part of the city lies in Harris County. If your address is on the Harris County side, ask TDI at 800-248-6032 whether it falls inside the catastrophe area. The city’s own permit rule applies anywhere inside city limits either way.

Which jobs need a permit, and which need a windstorm inspection?

The city permit and the TDI inspection are two separate things with different thresholds. This table puts the city FAQ next to TDI’s guidance.

Job City permit TDI windstorm inspection
Full roof replacement Yes, before work starts Yes. TDI lists roof replacements among jobs that need an inspection and certificate
Repair replacing more than 100 sq ft of roofing Yes, per the city FAQ Usually. Ask TDI’s windstorm office before work starts
Repair under 100 sq ft, no decking involved Below the FAQ’s re-roof threshold No. TDI gives this as an example of work that doesn’t need one
Small repair where decking is replaced Ask the Building Department The TDI exemption doesn’t cover it. Ask TDI first
Repair on an existing wood shingle roof Wood allowed only under 25% of the roof area Same rules as other repairs

TDI’s fact sheet gives the safe rule for anything in between: contact your local windstorm inspections office before you start any work and ask whether you need an inspection.

WPI-8 or WPI-8-E: get the roof inspected while it’s open

TDI issues two kinds of certificates for this work:

  • WPI-8 (ongoing construction): a TDI-appointed engineer or a TDI windstorm inspector checks the work while it’s underway. TDI’s fact sheet says you can request a free TDI inspector, or hire a Texas-licensed professional engineer or appointed qualified inspector. TDI doesn’t regulate their rates.
  • WPI-8-E (completed construction): for work that’s already finished. Only a Texas-licensed professional engineer or an appointed qualified inspector can do it, and TDI needs a sealed post-construction inspection report (or a sealed design) before it issues the certificate. TDI warns that inspecting a finished structure is harder and may cost more.

The reason timing matters is simple. Most of what makes a roof hold in high wind ends up hidden: the deck, the nails, the underlayment and the starter course along the edges. Once shingles cover them, an engineer has less to look at.

Old shingles torn off to the bare roof deck during a Pearland roof replacement
Pearland: tear-off down to the bare deck. This is the stage where the deck can be checked and fixed before anything covers it.
Roof deck inspected and renailed with the ridge cut open on a Pearland roof replacement
Pearland: deck inspected and renailed, with the ridge opened for venting.
Starter strip and first shingle courses nailed over synthetic underlayment on a Pearland roof
Pearland: starter strip and the first shingle courses going on over synthetic underlayment.

These photos come from our single-story hail roof replacement in Pearland, where the deck was re-nailed after tear-off, and our custom home roof in Pearland, which got GAF StormGuard leak barrier and new decking where it was needed. They show the layers a windstorm inspector would want to see before the shingles go on.

Not sure what your roof needs yet? Our residential roofing team starts with a free inspection and photos, so you can see the condition before talking permits.

What changed in 2026: TDI moved to the 2024 code

TDI’s Windstorm Inspection Program lists which building code applies by date. Work since April 1, 2026 falls under the 2024 International Residential Code. Work from April 1, 2020 through March 31, 2026 used the 2018 edition. TDI marks both as TWIA requirements in all three coastal zones (Inland II, Inland I and Seaward).

League City’s own ordinance adopted the 2021 International Residential Code and says re-roofing materials and methods must meet Chapter 9 of that code. The same ordinance refers to “Inland 1” windstorm requirements for equipment pads.

What this means for you

  • A roof finished in 2026 has to satisfy the city’s adopted code and TDI’s windstorm code for its start date.
  • Older paperwork for your home may cite the 2018 code or earlier. That’s normal, and it doesn’t carry over to a new roof.
  • Ask your roofer which edition their windstorm inspection will be checked against and who books that inspection.

After a storm: permits still apply

After Hurricane Beryl, League City waived permit fees for storm repairs until August 31, including roof repairs. That was a one-time waiver, and the notice is now archived. The same notice said much past work hadn’t been permitted, and that the Building Department wants all permit work permitted and contractors registered with the city.

If your roof was damaged in a storm and you’re filing a claim, the permit and windstorm paperwork run alongside the claim. Our step-by-step guide to the roof insurance claim process in Texas covers the claim side, and the roof deductible guide explains percentage wind and hail deductibles, including TWIA’s.

Before you sign: a League City roof checklist

  1. Ask who will apply for the city permit, and get the permit number before tear-off starts.
  2. Look the permit up yourself on the city’s Online Permit Portal.
  3. Read the proposal you’ll sign for the permit application. Check that the scope, the dollar amount and the warranty information match what you were told.
  4. Ask who will request the TDI windstorm inspection and whether it will happen during the work (WPI-8), not after.
  5. Ask which inspector or engineer will do it, and how they’ll document the deck, the nailing and the underlayment before the shingles cover them.
  6. Make sure the contractor is registered with the city. Call the Building Department if you’re unsure.
  7. When the job is done, get a copy of the certificate and search for it in TDI’s certificate database. Send it to your insurance agent.

General information, not legal advice. Rules, fees and code editions change, so confirm them with the League City Building Department and TDI before work starts, and check your own policy.

Frequently asked questions

Do I need a permit to repair my roof in League City?

Only for larger repairs. The city’s FAQ lists re-roofing as permit work when more than 100 square feet (one square) of shingles or roofing is replaced. A small repair below that usually doesn’t need a city permit. If decking will be replaced, call both the Building Department and TDI’s windstorm office first, because TDI’s small-repair exemption only covers work that doesn’t involve decking.

How much is a roof permit in League City?

We didn’t find a published residential re-roof fee on the city pages we checked, so call the Building Department at 281-554-1429. The fee waiver after Hurricane Beryl was temporary and ended August 31. TDI inspectors are free on request. Private engineers set their own prices, which TDI doesn’t regulate.

Can I get a windstorm certificate after my roof is already done?

Yes, through a WPI-8-E. Only a Texas-licensed professional engineer or an appointed qualified inspector can do it, and they must send TDI a sealed post-construction report or a sealed design. TDI warns that a finished roof is harder to inspect and may cost more. Planning the inspection during the job is the easier path.

Do I need a windstorm certificate if I don’t have TWIA insurance?

For a permitted re-roof inside League City limits, the city ordinance asks for the TDI report at completion as a condition of the permit, whatever insurer you use. Beyond the permit, the certificate keeps TWIA open to you later. TWIA says an uncertified property may be considered uninsurable.

How do I find out if my house already has a windstorm certificate?

Search TDI’s online certificate database for WPI-8 and WPI-8-E certificates. For a WPI-8-C issued by TWIA between January 1, 2017 and May 31, 2020, use TWIA’s certificate lookup tool, since TWIA notes those aren’t on TDI’s site.

Planning a roof in League City?

We’re a Houston-based roofer serving League City and the rest of Greater Houston. We’ll inspect your roof, attic and storm damage for free, document it with photos and give you written options: repair, replacement, financing or help with the insurance claim. If a repair is enough, we’ll say so. You can also see what we handle after storms on our storm damage page.

Book your free inspectionCall or text (346) 419-8294

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