St. Louis Roofing & Exterior Construction
Commercial Roofing in St. Louis
Low-slope and flat-roof systems installed, repaired and maintained to keep your business dry, open and on schedule.
A commercial roof is a different discipline
A commercial roof is not just a bigger house roof. Most commercial and industrial buildings have low-slope or flat roofs that shed water slowly, carry rooftop equipment and foot traffic, and fail in completely different ways than a steep residential roof. Getting the membrane, the seams, the flashing details and the drainage right is what keeps your business open and your inventory dry — so we approach every commercial roof as a system engineered for that specific building, its traffic and its budget.
Commercial systems we work with
- TPO — a single-ply thermoplastic membrane; reflective, energy-efficient and a popular choice for low-slope roofs.
- EPDM — a durable synthetic-rubber membrane with a long, proven track record on flat roofs.
- Modified bitumen — multi-ply asphalt-based systems well suited to roofs that see regular foot traffic.
- Standing-seam metal — long-service-life metal systems for the right slope and building.
- Coatings & restoration — restoring a sound existing roof to add years of life without a full tear-off.
The details that decide whether a flat roof lasts
On a low-slope roof, water doesn't run off — it sits and looks for the weakest point. That makes the parts you can't see from the ground the ones that matter most: adequate slope to the drains, watertight seams, correctly detailed flashing at parapets, curbs and penetrations, and sound edge metal. A commercial leak rarely starts in the open field of the roof; it starts at a detail. We inspect and document all of them, then fix the actual source instead of chasing stains.
What we handle for commercial clients
- New installation and full replacement of low-slope and flat roofs
- Leak diagnosis and targeted repair — finding the real source, not just the stain
- Preventive maintenance programs that catch small problems before they close your doors
- Flashing, drainage, curb and rooftop-penetration detailing
- Storm and hail damage assessment, documented for your insurer
- Scheduling around your operating hours to minimize disruption
Built around your business, documented for your records
We know a commercial roof decision usually involves budgets, boards and building managers. So we document what we find with photos, explain repair-versus-restore-versus-replace in plain terms, and hand you a clear scope you can actually act on. Our work is backed by our 10-year transferable workmanship warranty, and we're licensed, insured and locally owned in the St. Louis metro.
Frequently asked questions
Can you work around our business hours?
Yes. We schedule and stage the work to keep your operation running and your entrances safe, and we keep the site clean at the end of each day.
Do we need a full replacement, or can the roof be repaired or restored?
It depends on the membrane's age and condition. We inspect and document the roof first, then give you an honest repair, restoration or replacement recommendation — we don't default to the most expensive option.
Do you handle commercial storm and hail claims?
Yes. We document the damage, provide the photos and scope your insurer needs, and can meet the adjuster on site. See our insurance claims guide.
Are you licensed and insured for commercial work?
Yes — licensed and fully insured, and locally owned in Kirkwood, MO.
Need a commercial roof assessment?
We'll assess your building's roof, document what we find with photos, and give you a clear repair, restore or replace recommendation you can act on — scheduled around your operating hours.