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Commercial Roofing · Union, MO

Commercial Roofing in Union, MO

Emmendorfer Exteriors installs and repairs commercial roofs in Union, MO with Carlisle TPO membrane, TriBuilt low-slope systems, and standing-seam metal. Based in Union since about 2003 and roofing since 1990, our in-house family crews roof the storefronts, county offices, churches, and warehouses around the Highway 50 and Highway 47 corridor, system named in writing before work begins.
Get My Free Estimate (314) 568-4163A real Emmendorfer answers

A commercial roof in Union is a different animal than a house, and the buildings here prove it. The county courthouse and government offices off the square, the storefronts along Independence Drive and Main Street, the warehouses and shops strung along the Highway 50 and Highway 47 junction, and the churches scattered through the older parts of town all carry flat or low-slope membranes that have to shed water across a near-level plane. When that membrane fails, the leak does not drip into a spare bedroom, it lands on inventory, equipment, or a congregation. Union sits at the heart of Franklin County's storm corridor, and the federally declared March 2025 disaster that moved through the county brought large hail and straight-line winds over 75 mph that bruised flat roofs all across this town. Those are exactly the kind of winds that peel back seams and edge metal on a commercial deck.

Emmendorfer Exteriors has been in Union since the business moved here from the Overland suburb of St. Louis around 2003, and founder Matt Emmendorfer has been roofing since 1990. Commercial grew straight out of that, in Matt's own words a lot of TPO and commercial roofing along with metal, handled by the same family that put roofs on right around 2,400 Missouri homes and buildings, including 306 jobs in 2025. When a Union business owner needs the work done over a running operation, the crew on the roof is Matt, Tom, Tim, and their in-house guys, not a subcontracted storm chaser hired by the week from out of county. The same family that answers the phone here is the family standing on your roof.

How it works

What our commercial roofing includes in Union

A commercial roof has to keep working while your business does. Here is how we handle it once you approve the estimate.

  1. Full roof survey and moisture check

    We get on the roof and walk the entire membrane, checking seams, drains, scuppers, curbs, pitch pans, and edge metal. We document soft spots and trapped moisture with photos and drone footage so you see exactly what we found, not a vague summary from the parking lot.

  2. Tear-off or recover, decided honestly

    If the deck is sound and the assembly allows it, a single recover over the existing roof can save you money. If there is trapped moisture or failed insulation, we tear off to the deck. We tell you straight which one your building needs and why, the same honest call we make on a house.

  3. Repair the deck and insulation

    With the old roof open we replace wet or failed insulation and any soft decking, then set tapered insulation where you need positive drainage so water runs to the drains instead of ponding after a Missouri downpour.

  4. Install the membrane or metal system

    We install your chosen system, a Carlisle TPO membrane heat-welded at the seams, a TriBuilt low-slope assembly, or standing-seam metal, with all flashings, curbs, and edge metal detailed to the manufacturer's spec. The system is named on your written estimate before we order it.

  5. Clean to no footprint, on a working site

    We stage around your operating hours, keep the lot and walkways clear, magnet-sweep for fasteners, and haul every scrap. Our cleanup is the thing customers name most. We get in, do it, and get out without leaving a footprint on a business that has to open the next morning.

Local angle

Because our shop is in Union, a commercial leak gets a same-day look, not a callback from a metro dispatcher. That speed matters most when the roof is over a business that has to open in the morning. And on a storm claim, Tom Emmendorfer meets your adjuster on the Union rooftop and walks them across every bruised seam and lifted flashing, because that inspection is your one chance to get the full commercial damage scope on the record before the carrier forms its own number. A flat-roof claim on a Union warehouse or storefront lives or dies on that walk-through, and we do it here in town, not over the phone from another county.

FAQ

Commercial Roofing in Union: questions

Three main systems. Carlisle TPO membrane for the flat and near-flat roofs on Union storefronts, offices, and warehouses, TriBuilt low-slope and torch-down for low-pitch additions and sections, and standing-seam metal for pole barns, churches, and agricultural buildings out toward the county line. We work Union buildings up to four stories, with the system named on your written estimate before we order anything.
It depends on square footage, the membrane or metal you choose, deck condition, and whether we tear off or recover. We do not bid a Union commercial roof off a satellite image. We get on it, walk every seam and drain, and hand you a real written number. The price you approve is the price you pay, with no surprise change order once the old roof is open.
Almost never. Our in-house crews stage around your operating hours, keep the lot and walkways clear, and work in sections so a storefront or warehouse off Highway 50 stays open. We give you the sequence and timeline in writing with the estimate, so you know which areas we are on and when.
If hail or wind caused it, often yes. Tom Emmendorfer documents the membrane damage, files the claim, and meets your adjuster on the Union roof to walk them through every bruised seam and lifted flashing. You pay your deductible and we handle the claim. Under Missouri Revised Statute 407.725 no roofer can legally pay or waive a deductible, so be careful with anyone on a commercial job who offers to.
Often yes, and we will tell you straight if that is the honest call. A traceable puncture, a failed seam, or leaking edge metal is usually a repair. If the deck is sound we can recover over the existing roof to save you money. We only recommend a full tear-off when trapped moisture or failed insulation makes it the right call for your building.
We are based in Union. The shop has been here since about 2003 and the family has roofed since 1990. Many companies that appear for commercial roofing in Union are St. Louis-metro operators driving in after a storm. We live here, sponsor the local schools, and the same family crew works every job.
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A real Emmendorfer walks your Union commercial roof, names the system in writing, and gives you a number that does not change. Free, no obligation, same-day response on storm damage.

  • We walk your actual roof before we quote it
  • The manufacturer is named on your written estimate
  • The price you approve is the price you pay
  • Tom handles your insurance claim start to finish
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