• Commercial roof Repair · Licensed & insured
Flat roof leaking?
Get it found and fixed.
Supreme Roofing LLC repairs leaks, failed seams, membrane damage and ponding water on TPO, EPDM, modified bitumen and metal roofs for property managers, facility directors and building owners across Illinois.
✓ Free roof inspection ✓ TPO, EPDM & mod-bit repairs
✓ Storm & insurance claim support
Repairs we handle
Commercial roof repairs, from one leak to a whole section.
On a low-slope roof, water rarely shows up inside right where it gets in. It runs under the membrane and along the deck before it drips through a ceiling tile. We trace the leak to its source, repair it properly and tell you what else we saw while we were up there.
Leak detection & patching
We find where water is actually getting in and patch the membrane with compatible materials so the repair holds.
Seam & membrane repair
Re-welding open TPO seams, re-adhering lifted EPDM laps, and patching punctures, splits and blisters.
Ponding water & drainage
Clearing and repairing drains and scuppers, and correcting low spots where water sits after it rains.
Flashing & penetrations
Resealing flashing at walls, parapets, HVAC curbs, pipes, vents and skylights — the most common leak points on any flat roof.
Storm & wind damage
Fast inspection after severe weather, emergency tarping when needed, and photos and notes for your insurance claim.
Coatings & restoration
Reflective, restorative roof coatings that can extend the life of a roof that’s worn but still sound.
Why Supreme Roofing
In roofing, trust isn’t optional. It’s everything.
01
Fully licensed & insured
Illinois roofing license #104.018326, with the insurance to protect your property on every job.
02
Commercial-grade materials
Trusted, time-tested systems designed for long-term performance.
03
Responsive Communication
From first contact to final inspection, you’ll always know where your project stands.
04
Jobsite Safety Focus
Strict attention to safety — protecting workers, clients and property.
Roofing done right
Built to last. Backed by integrity.
We specialize in commercial and industrial roofing systems that demand durability, performance and precision — with clear communication from the first walk-through to the final inspection.
“Supreme Roofing handled our office complex install flawlessly. Fast turnaround, clean finish, no surprises.”
— Commercial client, office complex
Commercial roof repair guide
Fix the leak before it turns into a replacement
A small leak on a flat roof can soak the insulation under the membrane long before anyone sees a stain. Wet insulation stops insulating, adds weight and can rot or rust the deck. Catching the problem while it’s still a patch is almost always cheaper than waiting.
Signs your flat roof needs repair
- Stained or sagging ceiling tiles. Water has already found a path through the roof and into the building.
- Water standing 48 hours after rain. Ponding water speeds up membrane wear and finds any weak seam.
- Open, lifting or wrinkled seams. Seams are where single-ply membranes most often fail.
- Blisters, bubbles or splits in the membrane. Trapped moisture and age show up as blisters and cracking.
- Damaged flashing at rooftop units. Curbs, pipe boots and wall flashing loosen with vibration and weather.
- Clogged drains and scuppers. Debris backs water up on the roof and overloads the membrane.
What affects your repair cost
- How many areas are leaking. One failed seam is a different job from several leaks across the roof.
- Membrane type and condition. TPO, EPDM, modified bitumen and metal each need their own repair materials.
- Wet insulation. If insulation under the leak is soaked, that section has to be cut out and replaced.
- Roof access. Building height, roof hatches and whether a lift is needed.
- Age of the roof. If damage is widespread, we’ll tell you honestly whether repair still makes sense.
Commercial roof repair questions, answered
Can my TPO or EPDM roof be repaired, or does it need replacing?
Most localized problems — a failed seam, a puncture, a flashing leak — can be repaired. If the membrane is failing across the roof or the insulation underneath is widely saturated, a commercial roof replacement usually costs less over time. A free inspection tells you which one your roof needs.
How fast can you respond to an active leak?
Call us at (630) 421-0613. After storms we do fast inspections and emergency tarping or temporary repairs to stop water getting in while the permanent repair is scheduled.
What causes ponding water on a flat roof?
Clogged or poorly placed drains, a deck that has deflected over time, or crushed or wet insulation. We find the cause and fix it, whether that’s clearing a drain or correcting the low spot.
Will repairs disrupt our tenants or operations?
We plan repairs around your building. Most roof repairs are done from the roof without anyone inside having to move, and we coordinate access, noise and timing with your team.
Does insurance cover commercial roof damage?
Storm, wind and hail damage is often covered, depending on your policy. We document everything, and our sister company, Supreme Adjusting, can help you through the claim.
Are commercial roof inspections free?
Yes. We inspect the roof, give you a written report of what we found and recommend next steps — no obligation.
More from Supreme Roofing: Commercial Roof Installation Residential Roof Installation
Storm damage & insurance support
Hit by a storm? We move fast and document everything.
We handle storm restorations and complete roof replacements, and help clients through insurance claims with our sister company, Supreme Adjusting, so nothing gets missed.
- Rapid response. A fast inspection, plus emergency tarping if needed, to protect the building and limit further damage.
- Thorough documentation. Photos and notes of every detail to support your insurance claim.
- Claim support with Supreme Adjusting. Help navigating the insurance process from first call to final payment.
Stop the leak
before it spreads.
Request a free commercial roof inspection and repair estimate.