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Spotted a soft spot, a lifted seam, or a stain spreading on the ceiling under your flat section? We will climb the roof, document the issue, and quote a TPO repair or full membrane replacement so you can move forward this season with confidence.
If a low-slope section over your carriage house, addition, or rear porch is ponding water or losing seams after the spring 2025 hail run, you need a flat roof crew that knows membrane work, not just shingle work. Top Quality Exteriors installs and repairs TPO and EPDM on larger Frontenac homes off Conway Road, Geyer Road, and the Clayton Road corridor, where complex rooflines often pair steep slate or shake fields with hidden flat sections that quietly fail first. We document every seam, flashing, and drain so the repair actually holds.
TPO is the membrane we recommend most often here because its reflective white surface lowers attic load during hot, humid Missouri summers and resists puncture better than aged EPDM after a hail event. Every job pulls a Frontenac permit, builds to the city’s adopted 2021 IRC code, and includes tapered insulation where ponding is the root cause of leaks at the parapet. Need the steep field replaced at the same time? Pair this scope with our roof replacement in Frontenac service for one coordinated tear-off.
The two ways a low-slope membrane fails here are seam separation and ponding water, and both compound after a hail event like the late-May 2025 EF3 tornado that drove baseball-size impacts across mid-county neighborhoods. On older EPDM, the tape seams give first — the rubber stays intact but the lap opens, water tracks under, and the deck rots from below before a single drip shows up inside the ceiling. On TPO, the failure point is usually a missed weld or a punctured field where a falling limb from the mature tree canopy hit during a thunderstorm. Ponding is a slower killer: standing water over a quarter-inch deep more than 48 hours after rain accelerates UV breakdown and voids most manufacturer warranties on the spot. When we tear off, we re-pitch toward the drains, replace any wet decking, install a fully adhered TPO membrane, and detail every parapet, scupper, and pipe boot with heat-welded flashing in one pass. For the steep field above, see our asphalt shingles in Frontenac page.
Every flat roof we install in Frontenac follows the same five-step path so nothing gets skipped under the deadline pressure of a Missouri storm season. Here’s how we move from first call to a sealed, fully warrantied membrane on the deck.
We climb the low-slope section, photograph every seam, and probe for soft decking. Drains, scuppers, and pipe boots get marked for review. You receive the report inside one day.
Next we spec the membrane — TPO or EPDM — the insulation taper, and any drain rework. You see warranty terms, line-item pricing, and product cut sheets in writing before signing.
We pull the Frontenac building permit and book your crew around the forecast. Material drops the day before tear-off so it does not sit on the lawn under the canopy any longer.
Crews strip the old membrane, replace any wet decking, and re-pitch toward the drains. Tapered insulation goes down, then the new TPO sheet is mechanically fastened or fully glued.
Every seam is heat-welded, every flashing detailed, and the field probed for missed welds. We walk the roof with you, leave a job folder, and register your manufacturer warranty.
Top Quality Exteriors was founded in 2022 and the team brings over 7 years of industry experience to every Frontenac membrane job. We’re an Owens Corning Preferred Contractor and a BBB Accredited Business with an A+ rating, licensed in Missouri and carrying full general liability plus workers’ compensation coverage. That credentialing matters most when a city inspector asks for the tapered-insulation calc or a manufacturer asks for weld-test results.
Just as important is how the crew respects the property. Frontenac homes sit on one to three acres of mature landscaping, and a careless tear-off shreds turf and snaps low limbs fast. We stage materials on plywood runners, tarp the shrub beds, and run a magnet sweep twice before leaving. Every membrane install ships with a 36-month workmanship warranty in writing, with extended options up to a lifetime warranty available on selected TPO product lines.
Pricing a flat roof in Frontenac depends on three variables — square footage, the condition of the decking, and how many penetrations the membrane has to wrap. A straightforward 600-square-foot TPO tear-and-replace over a sound deck with two pipes and one scupper falls in one bracket; a 1,500-square-foot system with parapet flashing, a skylight curb, and tapered insulation falls in another. We quote line items, not lump sums, so you see where each dollar goes.
Insurance is the other lever. After the March 2024 supercell and the May 2025 EF3 event, many Frontenac homeowners had legitimate hail claims approved on previously denied flat sections once we documented the bruising properly. We attend adjuster meetings, photograph damage to spec, and keep the scope honest. Hearth and GreenSky financing are available for the out-of-pocket portion, and we walk you through estimated draws before any contract is signed.
Every credential we carry is a commitment to quality, safety, and your peace of mind — on every project, in every state we serve.
