Key numbers
69 verified hail storms with stones of 1.75 inches or larger reached Williamson County, which includes Round Rock, from 1984 to 2025 in the storm records we keep; the largest measured 6.12 inches (softball size) on May 9, 2024 (NOAA NCEI).
| Hail storms by decade, 1984 to 2025 | 1980s: 5, 1990s: 14, 2000s: 21, 2010s: 10, 2020s: 19 Source: NOAA NCEI |
|---|---|
| Largest hail | 6.12 in. (softball), May 9, 2024 Source: NOAA NCEI |
| Costliest hail storm | $160 million insured losses (2006 dollars), April 20, 2006 Source: Insurance Journal |
| 3,945 | Williamson County issued permits for 3,945 single-family (1-unit) homes in 2025. Source: U.S. Census Bureau, Building Permits Survey, 2025 |
| About 9.4% | About 9.4% of Williamson County's housing units (24,568 of 262,644) were built in 1979 or earlier, the Census bin closest to the 1978 federal lead-paint ban. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 |
A storm counts when NOAA lists a report in Williamson County. Each hail size is the storm's largest report in the seven Austin-area counties, which may have fallen in a neighboring county, and insured losses cover every area the storm hit.
Roofers in Round Rock work without a city re-roof permit: Round Rock does not require one for a residential re-roof, so hiring a roofer there comes down to what you put in the contract: the city will not send an inspector to check the decking, underlayment or flashing. The city does require drip edge, under code section R905.2.8.5, and any job that modifies the roof’s structure needs a residential remodel permit. Integrity Roofing and Painting serves Round Rock from our Austin office, and we photograph each stage of the work so you have the record a city inspection would otherwise give you.
What Round Rock requires
| Project | What the city says |
|---|---|
| Residential re-roof | No permit required |
| Modifying the roof (framing, shape) | Residential remodel permit |
| Drip edge | Required, per section R905.2.8.5 |
| Commercial flat roof replacement | Commercial re-roof permit, with plans showing overflow drains, downspouts and emergency scuppers |
| Commercial pitched roof | Permit only if decking is replaced |
Questions for the city go to Round Rock Building Inspections at 512-218-5550.
Without an inspection, put these in writing
- Decking. How rotted or soft decking will be found and replaced, and at what price per sheet.
- Underlayment. The product and how many layers, especially on low-slope sections.
- Flashing. New step flashing at walls, new pipe boots, and how chimneys and skylights are flashed.
- Drip edge at eaves and rakes, which the city requires.
- Ventilation. How the attic will be vented, which matters in long Texas summers.
- Photos of each stage before it is covered.
Our process covers the last point by default: crews install to the manufacturer’s specifications with photo documentation at every stage.
Round Rock homes and storms
Homes in the same subdivision were often roofed at about the same time, so when a hailstorm crosses Round Rock, whole streets can need roofs at once, and out-of-town crews tend to follow. Texas law does not let a roofer act as your public adjuster or waive your deductible; see Austin storm damage repair for the claim rules and our 5 steps after a storm damages your Austin roof. If your roof is simply old, compare asphalt shingles and metal, and read about roof replacement.
Next door, Georgetown requires a permit for every re-roof and Pflugerville uses a third-party inspection certificate, so the rules change quickly as you cross city lines. To the west, Cedar Park draws its line at structure: a non-structural roof covering needs no permit. See all of our Austin-area service areas.
Book a Round Rock inspection
We are veteran-owned, family-run since 1990, an Owens Corning Platinum Preferred contractor, and have 650+ Google reviews. Call (512) 610-5897 or book a free roof inspection; we reply the same business day.
Sources: City of Round Rock, Other Building Permits; Texas Department of Insurance, Roofing and insurance: know the law.
