Commercial roofing in Saint Louis, MO
Warehouses, strip centers, and industrial buildings in Saint Louis share one thing: the roof is invisible until it leaks. Our commercial team inspects on a scheduled cadence, catches seam failures before they become insurance claims, and replaces membranes on a planned capital schedule rather than an emergency one.
Membrane systems
Commercial roof systems we install in Saint Louis
TPO (Thermoplastic Polyolefin)
20-30 years
The most-installed single-ply commercial membrane in the US. White reflective surface cuts cooling loads. Seams are heat-welded — when done right, they outlast the rest of the membrane. Best default choice for warehouses, strip centers, and flat-roof residential.
EPDM (Rubber)
25-35 years
Black synthetic rubber sheet — proven since the 1970s. Lower reflectivity than TPO but excellent cold-weather flexibility. Priced the same as TPO — preference call based on building orientation + climate.
Building types
Common Saint Louis commercial roof projects
Church and institutional buildings
Mixed-pitch roofs with flat tie-ins over additions. Membrane-to-shingle transitions are where most leaks originate.
Industrial-corridor warehouses
The Earth City, Hazelwood, and Metro East industrial belts are dominated by tilt-up concrete buildings with TPO or EPDM roofs installed 1995-2010. Most are now due for replacement or serious restoration.
Strip centers and retail plazas
South-county and St. Charles County retail developments typically run 40,000-80,000 sq ft under a single membrane. Re-roofs happen in phases around existing tenants.
Flat-roof bungalows and two-families
South City and Baden-area bungalows often have small flat-roof sections over additions or porches. TPO is the modern replacement spec for these.
Maintenance schedule
Preventive maintenance for Saint Louis commercial roofs
Twice yearly (spring + fall)
Walk inspection, drain and scupper clearing, seam and flashing inspection, debris removal, ponding-water check.
After any major storm
Emergency walk, photo documentation, temporary patch of any punctures or seam separations, insurance claim trigger if damage found.
Every 3-5 years
Infrared moisture survey to map wet insulation, core samples in suspected areas, seam-probing test, caulk and pitch-pan rework.
Every 10 years (mid-life)
Restoration coating (acrylic or silicone) to extend service life by 10-15 years before full replacement is needed.
Nearby
Commercial roofing in nearby Saint Louis cities
FAQ
Saint Louis commercial roofing questions
What does a commercial roof replacement cost in Saint Louis, MO?
Commercial TPO or EPDM replacement in Saint Louis runs roughly $8-$14 per square foot installed depending on substrate, slope, insulation thickness, and tear-off versus re-roof. A 20,000 sq ft warehouse roof typically lands in the $160,000-$280,000 range. For a flat-roof residential section, expect $20,000 - $25,500 on a typical 1,650 sq ft home.
How long does a commercial flat roof last in Saint Louis?
Service life depends on the system and the maintenance program. In Saint Louis: TPO runs 20-30 years, EPDM 25-35 years. Documented semi-annual maintenance typically adds 4-7 years to either system by catching seam failures before they become substrate failures.
Do you offer preventive maintenance contracts for Saint Louis buildings?
Yes. We offer semi-annual inspection and maintenance contracts for Saint Louis commercial properties — two scheduled visits per year, post-storm emergency walks, written inspection reports with photos, and priority dispatch for any leaks. Standard pricing runs $0.05-$0.10 per square foot annually depending on building size and access.
TPO vs EPDM in Saint Louis — which should I specify?
TPO is the default for new construction and tear-off replacements in Saint Louis: white reflective surface cuts cooling loads, heat-welded seams outlast the membrane itself, and material cost is lower. EPDM is a better choice on buildings with heavy rooftop foot traffic or extreme cold (black rubber flexes better in freezes), and on older buildings where adhesive-seam tie-ins to existing flashing are cleaner than heat-welded. We'll spec based on your specific building, not vendor preference.
Can you recover over my existing Saint Louis commercial roof instead of tearing off?
If the substrate is dry, the insulation is intact, and we're inside the first recover allowance (most codes permit one), yes — a recover saves 20-40% versus a full tear-off. If the insulation is wet (infrared scan + core samples tell us) or you're already on a second recover, the math flips and tear-off is the cheaper long-term call. We do an infrared moisture survey before quoting so the recommendation is honest.
How do you coordinate install around Saint Louis tenant operations?
For occupied buildings we run evening + weekend shifts, stage materials off-hour to avoid dock conflicts, and seal each work area daily so the building stays dry and operational through a multi-week install. Pre-construction we walk the tenant plan with the building ops lead so everyone knows exactly what to expect — no surprises during a restaurant dinner rush or a retail weekend.
What's the warranty on a new TPO roof in Saint Louis?
Manufacturer TPO warranties run 20-30 years depending on membrane thickness (60mil vs 80mil) and the NDL system tier. Our 5-year workmanship warranty stacks on top and covers installation defects that cause leaks. All warranties are registered in the building owner's name at substantial completion, not ours — so if the building sells, the warranty transfers cleanly.
Does my insurance cover commercial roof replacement in Saint Louis?
Storm-damaged commercial roofs in MO are covered under standard property insurance for hail, wind, and tree-fall — same as residential. Age-related wear is not. We meet your carrier's adjuster on-site, document damage to the specificity commercial claims require (impact density per square, seam failures, fastener patterns), and file supplements when scope misses code or manufacturer requirements.
Do you pull the permit + close inspection for Saint Louis commercial work?
Yes — every permit, every inspection, every jurisdiction. We know the Saint Louis-area AHJs, their favored inspectors, and the specific requirements they care about (fire-rating paperwork, wind-uplift documentation, etc.). Close-out packets including as-built drawings, warranty registrations, and maintenance schedule are handed to the owner at completion.
Can you work with our existing roofer in Saint Louis?
Yes. We regularly take scope the in-house or existing contractor can't cover — large tear-offs, recovers, EPDM-to-TPO conversions, warranty-registered manufacturer work. We hand back punch-list-closed work with full documentation so the existing relationship stays intact for routine maintenance.
Everything we do in Saint Louis