Roof Replacement in O'Fallon, MO
O'Fallon went from about 18,700 people in 1990 to 91,316 by 2020. Nearly half the city's homes were built after 2000, roughly 15,000 of them. A city that grows that fast ends up with thousands of original roofs aging out in the same few years.
We come to O'Fallon from Union, where the family's been in business since 1990. Matt Emmendorfer actually started the company in Overland, in St. Louis County, before moving the shop to Union in 2003, so this is a metro roofing family working back into the metro, not an outside crew guessing at local rules. What travels here: in-house crews, four manufacturer certifications, a written estimate. What doesn't: a local office, and we're upfront about that.
Why O'Fallon homeowners call us
- We know there's no permit inspection here, so we hold our own standard.
Full tear-off, decking replaced not covered, manufacturer named in writing.
- Roofing the metro since 1990.
Founder Matt Emmendorfer, sons Tom and Tim, roughly 2,400 Missouri homes.
- We walk every roof before quoting it.
Even on a matched subdivision street, pitch and decking condition vary house to house.
- Tom handles your insurance claim
if hail or wind caused the damage, start to finish.
No permit doesn't mean no rules
The City of O'Fallon's own re-roofing guidance says a permit isn't required to re-cover or replace residential roofing. But the work still has to meet the adopted code, including one rule: asphalt shingles aren't allowed on slopes under 2:12.
No permit means no inspector checking the work. Your only real protection is what standard your contractor holds themselves to. That's the whole reason to ask specific questions before signing: full tear-off, decking and fascia replaced rather than covered, manufacturer named in writing. Those are already how we work every job.
Why the neighbor's price isn't your price
Same subdivision, same builder, same year doesn't mean same roof. Pitch, square footage, layer count, and actual decking condition still vary house to house, which is why we walk your roof before quoting instead of pricing off a neighbor's number. On May 16, 2025, hail up to 2.00 inches was reported near Harvester in St. Charles County, well past the roughly one-inch point where shingles start taking real damage, so a hail check is worth it even if nothing looks wrong from the ground.
Many O'Fallon subdivisions also have HOA rules on shingle color and material. We'll work within whatever yours requires. Our repair-or-replace guide and attic ventilation guide cover the two questions that come up most on builder-era O'Fallon roofs.
What we do in O'Fallon
Roof replacement leads here, alongside a free inspection if you're not sure your roof has reached that point. Gutters and siding round out most projects, and storm claim support is available if hail caused the damage.
Choosing a roofer in O'Fallon?
Ask for full tear-off, decking replaced not covered, and the manufacturer named in writing, before you sign anything. In a city with no permit inspection, that's your real verification.
O'Fallon, MO roofing questions
Get a free roof estimate in O'Fallon, MO
A real Emmendorfer walks your roof, names the manufacturer in writing, and gives you a number that doesn't change.