Home / Commercial Roofing Contractor in DuPage County
Adept Construction · Since 1997
Repair, replacement and storm claims for commercial buildings in Naperville, Downers Grove and the western suburbs
We’ll call to confirm a time — usually within one business day
Or call (630) 360-2730 · Mon–Fri 8–6, Sat 8–4:30
Adept Construction, Inc. is a family-owned commercial roofing contractor that has repaired, replaced and installed roofs across DuPage County since 1997, from offices in Naperville, Downers Grove and Villa Park. We work for property managers and building owners on retail, office, medical and light-industrial buildings along Ogden Avenue, Route 59, Butterfield Road and the I-88 corridor.
Most of those buildings have low-slope roofs, so most of our commercial work is EPDM rubber, TPO and modified bitumen membrane. Where a commercial building has a pitched roof, we install Owens Corning architectural shingle or composite slate and shake. Illinois roofing license No. 104.011123; Owens Corning Preferred Contractor.
Property managers get one point of contact, a free inspection and a written scope with photos before any work starts. For an active leak, call the nearest office — Downers Grove (630) 964-8708, Naperville (630) 360-2730 — or request a site visit.
Seam failures, membrane punctures, ponding, flashing and curb leaks, and storm damage on EPDM, TPO and modified bitumen roofs. We locate the leak from the interior stain back to the source, repair the membrane and flashing, and document the repair for your building file. For an active leak we tarp the roof, usually within 24 hours, then make the permanent repair. See roof leak repair, membrane-by-membrane details on our flat roof repair page, or the city pages: Naperville, Downers Grove.
Full tear-off to the deck, or a recover where the existing roof qualifies. Under the Illinois Roofing Industry Licensing Act, a recover is a new covering installed over a prepared existing roof without tearing it off, and it is not allowed when the existing covering is water-soaked or too deteriorated to serve as a base, when it is slate or tile, or when the roof already has two or more applications, unless IDFPR has accepted a structural report from an Illinois-licensed architect or structural engineer. We tell you which applies, in writing, after a core cut and a moisture survey. New insulation to the Illinois Energy Conservation Code, tapered systems to fix ponding, and the manufacturer’s warranty plus our 10-year workmanship warranty. Our guide to commercial re-roofing cost explains what drives the price.
New construction and additions, from deck inspection through membrane, insulation, flashing and drains, on the builder’s schedule. See our roof replacement services for how the work is scheduled.
Clogged drains and scuppers, open seams and loose flashing are common causes of leaks on low-slope roofs, and they cost the least to fix before water reaches the ceiling tiles. Ask us to inspect the roof whenever you want a check; spring, after the first storms, and fall, before freeze-up, are good times. Inspections are always free, and you get photos of what we find and a written estimate for anything that needs work.
Condition assessments for purchases, lease turnovers, insurance and capital planning, with photos and a moisture survey where warranted. Inspections are always free, with no conditions. Our guide to commercial roof inspection cost explains what an inspection includes.
Hail bruises TPO and EPDM membranes and cracks modified bitumen surfacing; wind lifts flashing and displaces ballast. After a storm we inspect, tarp open areas (usually within 24 hours), photograph the damage, write the scope your insurer needs and meet the adjuster. See the storm section below and our storm damage page.
Since 1997, from three offices in Naperville, Downers Grove and Villa Park. Illinois roofing license No. 104.011123, verifiable on the IDFPR roofing contractor page. Owens Corning Preferred Contractor. Every new roof comes with the manufacturer’s warranty plus our 10-year workmanship warranty, in writing.
Low-slope commercial roofs get a membrane system: EPDM rubber, TPO or modified bitumen. Pitched commercial roofs get Owens Corning architectural shingle or composite slate and shake. Our flat roofing page explains how each membrane works and how it is repaired; this page covers how we run the job on a commercial building.
EPDM rubber and TPO membranes for roofs with a pitch under 2:12, mechanically fastened or fully adhered over tapered insulation to eliminate ponding, with the manufacturer’s warranty plus our 10-year workmanship warranty.
Torch-applied or self-adhered modified bitumen for commercial roofs with heavy foot traffic or many penetrations, such as rooftop units, vents and curbs.
Owens Corning architectural shingles on commercial buildings with pitched roofs — the same system as residential, specified for the building.
Molded polymer slate and shake, including Brava composite cedar shake, for pitched commercial buildings where the look matters, without the weight of natural slate.
Retail and medical along Ogden Avenue and Route 59, the office parks on Diehl Road and the I-88 corridor, and the restaurant and mixed-use buildings downtown. We pull the permit wherever one is required. Office: 27W225 79th St. See Naperville roofing.
The office and retail buildings along Ogden Avenue and Butterfield Road, and the light-industrial buildings in Westmont. Office: 6509 Hathaway Ln. See Downers Grove roofing and Westmont.
Industrial and warehouse roofs along North Avenue and the St. Charles Road corridor, served from our Villa Park office at 300 E Plymouth St. Villa Park requires a permit for any roofing work, and we pull it. See Villa Park, Lombard and Elmhurst.
Office and retail buildings, including the 22nd Street and Route 83 corridor in Oak Brook. For buildings at Oakbrook Center and many other shopping centers, the Village of Oak Brook asks for center management’s approval on the plans before the permit is submitted, so we get that sign-off first. See Hinsdale, Oak Brook and Burr Ridge.
Distribution and warehouse roofs along I-55 and I-88. See Aurora, Bolingbrook and Romeoville, or every DuPage County town we serve.
Commercial roofing is priced per square (100 sq ft) by system, with the biggest variables being tear-off versus recover, the insulation thickness code requires, drain and curb count, and access. A moisture survey before the estimate is what keeps the price from changing after the tear-off. Typical ranges are in our guides to commercial re-roofing cost and commercial roof inspection cost, or request a site visit and written scope.
Yes, Adept Construction inspects and repairs hail and wind damage on commercial roofs across DuPage County and works with the building’s insurer from the first inspection on. On March 30, 2026, the National Weather Service in Chicago logged measured hail of 1.50 to 1.75 inches near Oak Brook, Downers Grove and Hinsdale, and the July 27, 2026 storms brought tornadoes, extensive wind damage and damaging hail to DuPage, Cook and Will counties.
Hail bruises EPDM and TPO membranes and cracks modified bitumen surfacing, and wind lifts flashing and displaces ballast. Most of that damage can’t be seen from the parking lot, which is why the inspection happens on the roof.
For an active leak after a storm, call (630) 360-2730 or see how our storm damage roof repair process works.
✦ What customers say
Customers most often say owner Gerry Michaels comes out himself, explains the problem with photos and gives a fair, competitive quote. Many reviewers describe a full roof replacement finished in one or two days, crews that protect gardens and clean up every nail, and help with hail and storm insurance claims. Homeowners across DuPage County, from Naperville to Downers Grove, Villa Park and Lombard, also mention repeat work over 20 years or more, plus gutters, siding and skylights.
AI-generated summary of customer reviews, updated October 9, 2026.
Commercial roof replacement is priced per square (100 sq ft) by system — EPDM, TPO, modified bitumen or shingle — with tear-off versus recover, required insulation thickness, drain and curb count and access as the main variables. Adept Construction provides a written scope after a free site visit and moisture survey; typical ranges are in our commercial re-roofing cost guide.
Nothing. Commercial roof inspections from Adept Construction are always free, with no conditions, whether you need a repair estimate, a condition check before a purchase or lease, or a look after a storm. Our commercial roof inspection cost guide explains what an inspection includes.
Adept Construction roofs retail, office, medical, light-industrial, warehouse and mixed-use buildings across DuPage County. Low-slope roofs get EPDM, TPO or modified bitumen membrane; pitched commercial roofs get Owens Corning architectural shingle or composite slate and shake.
Yes. Because inspections are always free, you can book one whenever you want a check; spring, after the first storms, and fall, before freeze-up, are good times. We photograph the drains, seams and flashing and give you a written estimate for anything that needs repair.
Yes. For an active leak, call the nearest office — Downers Grove (630) 964-8708 or Naperville (630) 360-2730. Adept Construction tarps the roof, usually within 24 hours, and documents the temporary repair for the insurance file.
Often, when the damage comes from a specific storm, such as the March 30, 2026 hail that the National Weather Service measured at 1.50 to 1.75 inches near Oak Brook, Downers Grove and Hinsdale; coverage depends on the policy. Adept Construction inspects, photographs and documents hail and wind damage on membrane and shingle roofs, writes the scope the carrier needs and meets the adjuster on site. See our storm damage page.
Usually, but each city and village sets its own rules. Villa Park requires a permit for any roofing work, and Oak Brook asks for shopping-center management’s approval before a permit is submitted for buildings at Oakbrook Center. Under 225 ILCS 335/5, a town that requires a permit can’t issue one to a roofer without proof of a current Illinois roofing license. Adept Construction pulls the permit wherever one is required and schedules the inspection as part of the job.
Yes. Adept Construction holds Illinois roofing contractor license No. 104.011123 from the Illinois Department of Financial and Professional Regulation and is an Owens Corning Preferred Contractor. Verify any Illinois roofer on the IDFPR roofing page.
Call the office nearest the building: Naperville, 27W225 79th St, (630) 360-2730; Downers Grove, 6509 Hathaway Ln, (630) 964-8708; or Villa Park, 300 E Plymouth St, (630) 782-9736. All three are open Monday to Friday 8 AM to 6 PM and Saturday 8 AM to 4:30 PM.
Every new commercial roof includes the manufacturer’s warranty plus Adept Construction’s 10-year workmanship warranty, both in writing.
View our work
Real Adept Construction projects from across DuPage County — the newest jobs appear here automatically as we add them, with photos, materials and the story behind each one.
Free inspections and written estimates across DuPage County — call the office nearest you or book your free inspection online.
