Free roof inspection, with a photo report of what we find.
Roofing advice for O'Fallon, MO homeowners
Before deciding on roofing work, consider the roof’s whole condition: isolated damage, repeated leaks and wear across several slopes call for different responses. We inspect the materials and roof details so you can compare repair with replacement on a clear basis.
Storm history in O'Fallon, MO
O'Fallon took the largest hail in the region in March 2024 and has been hit again every spring since. These are the National Weather Service storm reports for O'Fallon since 2022.
- 14 March 2024 — 3-inch hail in O'Fallon, St. Paul and Lake St. Louis; the NWS summary lists 3-to-3.75-inch hail over St. Charles County and 61 reports countywide. National Weather Service
- 16 May 2025 — Large hail across the county including O'Fallon, Dardenne Prairie and St. Peters, up to 2.5 inches, lasting more than ten minutes in places. National Weather Service
- 27 April 2026 — 1.25-inch hail in O'Fallon, Harvester and St. Peters. National Weather Service
- 10 April 2025 and 30 April 2025 — 1-inch hail in O'Fallon on both dates, with a 58-mph gust in Dardenne Prairie on the 10th. National Weather Service
- 16 July 2023 — Shingles blown off homes in O'Fallon, Harvester and Defiance. National Weather Service
- 12 August 2026 — Wind damage in O'Fallon and St. Paul. National Weather Service
Source: National Weather Service St. Louis local storm reports, 2022–2026. Hail sizes are preliminary spotter and media reports.
If your O'Fallon roof predates March 2024 and hasn't been inspected since, it has very likely been hit by 3-inch hail. That is replacement-grade damage even when the roof isn't leaking.
Repair or replacement in O'Fallon, MO
If damage is confined to a small area and the surrounding roof is sound, a targeted repair may be appropriate. If leaks are spreading or materials are deteriorating broadly, we explain the replacement scope and the reasons behind it.
Compare our roof repair and roof replacement services.
See our St. Charles County, MO roofing page and all service areas.
Looking for O'Fallon, Illinois?
After a storm, see our storm damage roof repair page, call for 24/7 emergency roof tarping if water is getting in, and read how we help with the insurance process.
Lifetime workmanship warranty on asphalt shingle roofs, transferable to a new owner one time; 10-year workmanship warranty on all other work.