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If you own or manage a commercial building in Florissant and your low-slope roof is leaking, aging, or has unresolved storm damage, we would like to take a look. Call Top Quality Exteriors at (314) 618-8888 for a site walk this week.
Running a storefront on Lindbergh Blvd or managing a small office near Old Town Florissant means a leaking flat roof shuts the business down fast. We handle commercial roofing in Florissant MO for property owners, managers, and small-business tenants whose low-slope decks are patched past their useful life. The team at Top Quality Exteriors keeps your doors open by scheduling tear-offs after hours and sealing active leaks the same day. A sudden tenant drip over the counter can derail a Monday, so we tarp first on the 24/7 line and plan the permanent repair after.
Our commercial crews work on everything from a small Washington Street storefront to a 20,000-square-foot distribution building off I-270. On low-slope decks we install TPO, EPDM, and modified bitumen; on standing-seam metal we handle fastener resets and flashing details that stop sidewall leaks. If the deck needs more than a seam-weld patch, we schedule around tenant hours and route the project into a full roof replacement in Florissant with warm-side insulation, tapered foam for drainage, and new perimeter metal.
Most of the commercial stock north of I-270 was built the same stretch of years as the ranch belt around it — mid-century, modest-footprint buildings along Lindbergh and New Halls Ferry with ballasted BUR or early EPDM covers now well past their service life. We open those roofs and find brittle membrane, failed seams at the HVAC curbs, blocked scuppers, and insulation that gave up its R-value after a decade of ponding. Our spec usually calls for a mechanically attached 60-mil TPO membrane with ISO insulation, tapered foam at the drains, drip edge installed per Florissant code, and new perimeter metal matched to the sample we submit to the Building Commissioner. On occupied buildings we stage tear-off in zones and keep the interior dry under tarps and night covers. For older plank-deck storefronts near Old Town and the Shrine, our TPO and flat roofing in Florissant starts with a decking inspection, because Florissant’s own code deems warped, cracked, or delaminated sheathing non-nailable and requires replacement.
Here is how we move a commercial job from first call to final walkthrough. Each step keeps your tenants dry, your doors open, and your paperwork clean with the Florissant Building Department from first sample submittal to final inspection sign-off.
We meet you on-site and climb your low-slope deck ourselves. Our team maps seams, drains, HVAC curbs, and current patches. You get a full photo set and a plain-English report back.
We write a line-item scope that matches what we saw on your roof. The quote lists membrane, insulation value, and flashing details. You can hand it to your adjuster without edits.
We submit the roof plan, contract, and samples to Florissant. The Building Commissioner approves the match per Code 500.330(18). Our crew pulls the permit before any tear-off.
We stage dumpsters and set roof protection before the first cut. Our crew strips the old membrane and dries in the deck the same day. We flag rotted sheathing before closing up.
We walk the finished deck and test every drain and seam. Flashing, scuppers, and perimeter metal get checked twice. You leave with warranty paperwork and the final inspection card.
Top Quality Exteriors is a BBB Accredited Business with an A+ rating, licensed in Missouri and Illinois, and carrying both general liability and workers’ compensation insurance on every job. We founded the company in 2022 and brought along more than 7 years of industry experience, so the crew that shows up at your Florissant property has handled low-slope rebuilds up and down north county, from Hazelwood warehouses to Bellefontaine Neighbors retail strips.
Our team is an Owens Corning Preferred Contractor and a James Hardie Alliance Program Member, so the manufacturer warranty on your rebuild is backed by real training, not a certification badge on a flyer. Every commercial job carries a 36-month workmanship warranty as the baseline, with extended options up to a lifetime warranty available on selected products. You also get a direct line to the owner, Mario Granados, from the first site walk through the final punch list.
Commercial roofing in Florissant sits toward the lower end of the metro range for one simple reason: most buildings here are modest-footprint, low-slope boxes rather than the complex architectural decks you find in Clayton or Chesterfield. A 5,000-square-foot TPO rebuild typically moves on membrane thickness, insulation R-value, and whether the existing deck is nailable. Flashing details at HVAC curbs and parapet walls are the other big variable on an older building.
We write every line item so you can see where the money goes, and we never bury a “deck surprise” charge after the tear-off. If the sheathing is non-nailable under Florissant code, you see that call before we start. For owners stretching a capital budget across multiple buildings, Hearth and GreenSky financing options are on the table for qualified applicants, and insurance-funded storm damage roofing in Florissant is a routine path after a 2025-caliber hail event.
Every credential we carry is a commitment to quality, safety, and your peace of mind — on every project, in every state we serve.
