Full-Tear-Off Commercial Roof Replacement in Madison County
Aging commercial roofs in Illinois show up as failed seams on TPO, brittle EPDM at the membrane edges, ponding water, and saturated insulation. When repair stops being economical, Trill Roofing handles the full commercial replacement: existing membrane and insulation tear-off, deck inspection, insulation upgrade to current IL Energy Conservation Code, new TPO, EPDM, or modified bitumen membrane installation, and termination details at edges, penetrations, and curbs. Andy Pfleger walks every commercial bid, files the Madison County permits, and is on-site during major phases.
What’s Included in a Commercial Roof Replacement
Every commercial replacement Trill performs follows the same scope.
- Tear-off: Existing membrane and insulation removed, debris hauled off, deck exposed for inspection.
- Substrate inspection: Wet insulation flagged, deck condition evaluated, structural deflection noted.
- Insulation upgrade: Board insulation rebuilt to current IL Energy Conservation Code (R-30 average for commercial flat roofs).
- Membrane installation: TPO (60-mil or 80-mil), EPDM (60-mil or 90-mil), modified bitumen, or standing seam metal panels, depending on building use and budget.
- Termination details: Edge metal, parapet wall flashing, drain reconstruction, penetration boots, curb flashing for HVAC.
- Warranty registration: Manufacturer warranty filed (typically 20 to 30 years on TPO/EPDM systems) plus Trill workmanship warranty.
Commercial roof replacement is a 5 to 7-figure decision with tenant impact, permit obligations, and warranty stakes. Trill Roofing approaches commercial replacements with documentation at every step. Illinois IDFPR licensed (#104.020330), general liability insured, GAF-listed contractor. Contact us for a written commercial assessment with line-item scope.
Trill Roofing
2705 St Ambrose Dr Suite 1, Godfrey
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Great business to work with. My house, garage and studio now have matching shingles on the roof. Guttering was added to the house. Prompt service and fair pricing. -
I am very pleased with the total roof replacement and attic vents installation completed last week by Andy’s crew. Andy was reachable and responsive through the entire process! No question was too big or small! His crew had to stay an unplanned … More second day because of the steepness of my roof. There was not an ounce of frustration shown. I am pleased with the workmanship of his crew! They worked non-stop for two days, well into the evenings! At the end, I noticed a couple things to tweak and they did it without question or hesitation. I would highly recommend them! -
Trill Roofing went above and beyond on our roof. I have an old house. The roof had been untouched for many years. Much of the sheathing had to be replaced as well as rafters. In a time when it’s hard to get contractors to show up, … More Trill Roofing was on site, working on my roof exactly when they said they would start. They explained the process and answered all of my questions. I learned a lot about roofing systems.
I look forward to working with Trill on my upcoming siding and gutter projects. -
Andy, at Trill Roofing, is awesome to work with. We had storm damage, which insurance denied. Andy went the distance, he took multiple pictures which confirmed the damage, sent them to the insurance, and they finally approved roof replacement. … More None of the other roofing companies did that. They did an awesome job! Very quick and efficient. We highly recommend them.
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Commercial roof replacement in Godfrey, IL: common questions
How much does commercial roof replacement cost in Godfrey, IL?
A commercial roof replacement in Godfrey, IL costs $7 to $14 per square foot installed, depending on the membrane and insulation specified. Every Trill Roofing estimate is written and itemized before work starts.
What does commercial roof replacement in Godfrey, IL include?
Commercial roof replacement in Godfrey, IL includes a fixed scope on every job:
- Tear-off: Existing membrane and insulation removed, debris hauled off, deck exposed for inspection.
- Substrate inspection: Wet insulation flagged, deck condition evaluated, structural deflection noted.
- Insulation upgrade: Board insulation rebuilt to current IL Energy Conservation Code (R-30 average for commercial flat roofs).
- Membrane installation: TPO (60-mil or 80-mil), EPDM (60-mil or 90-mil), modified bitumen, or standing seam metal panels, depending on building use and budget.
- Termination details: Edge metal, parapet wall flashing, drain reconstruction, penetration boots, curb flashing for HVAC.
- Warranty registration: Manufacturer warranty filed (typically 20 to 30 years on TPO/EPDM systems) plus Trill workmanship warranty.
Does Trill Roofing offer a free roof inspection in Godfrey, IL?
Yes. The roof inspection in Godfrey, IL is free and produces a written photo report. The report covers:
- Shingle condition, including granule loss, curling, and cracking
- Flashing at chimneys, sidewalls, valleys, and pipe boots
- Attic ventilation balance between intake and exhaust
- A prioritized repair list on an immediate, 1-year, and 5-year horizon
Is Trill Roofing licensed and insured in Illinois?
Yes. Trill Roofing holds Illinois roofing contractor license #104.020330 through IDFPR and carries full insurance. Check any Illinois roofer for:
- An IDFPR roofing contractor license number you can verify online
- A current general liability insurance certificate
- Workers compensation coverage for the crew on your roof
- A written, itemized estimate instead of a verbal number
What towns does Trill Roofing serve for commercial roof replacement?
Trill Roofing performs commercial roof replacement across Madison County and the Riverbend from 2705 St Ambrose Dr in Godfrey, IL, with no trip surcharge inside the primary service area:
- Godfrey, Alton, Bethalto, and Brighton
- Edwardsville, Glen Carbon, Maryville, and Troy
- Wood River, East Alton, Roxana, and Hartford
- Jerseyville, Grafton, Elsah, and Cottage Hills
- Collinsville, Granite City, Hamel, Marine, and Worden
How do you book commercial roof replacement with Trill Roofing in Godfrey, IL?
Booking commercial roof replacement in Godfrey, IL takes three steps:
- Request the free inspection by phone or through the inspection form
- Walk the written photo report with a Trill Roofing estimator
- Approve the itemized estimate and get a spot on the build calendar
Is Trill Roofing a GAF certified roofer?
Yes. Trill Roofing is a GAF-listed contractor, which means GAF manufacturer warranties are available on qualifying installs.
Why hire a local commercial roof replacement contractor in Godfrey, IL?
A local commercial roof replacement contractor in Godfrey, IL is still reachable after the job is done. Trill Roofing is based at 2705 St Ambrose Dr in Godfrey, IL, so the warranty phone still reaches a local human years later.
What does a commercial roof replacement contractor do?
A commercial roof replacement contractor tears the existing system off to the deck and rebuilds it to code. Trill Roofing works as a commercial roof replacement contractor in Godfrey, IL at $7 to $14 per square foot installed, covering full tear-off, wet-area mapping and deck repair at cost, new insulation built to the Illinois Energy Conservation Code R-value, and a new TPO or EPDM membrane.