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★★★★★ 4.7 Stars · 289+ Reviews

Commercial Roof Repair & Installation | Cornell, IL

Same-Day Appointments Available  ·  24/7 Emergency Service

Full-Service Roofing in Cornell. Cornell Roofing & Maintenance — 4.7-Star Rated, 289+ Reviews.

Call (877) 349-1553
📞 (877) 349-1553

Leak spreading? Our crews carry emergency tarps on every truck.

Same-Day Service Licensed & Insured Free Estimates
<60 Min
Response Time
18+
Years Experience
4.7
Star Rating
289+
Happy Reviews

Commercial roofing is a different discipline from residential. Flat and low-slope systems (TPO, EPDM, PVC, modified bitumen, and built-up roofing) each have specific installation requirements and performance characteristics. Cornell Roofing & Maintenance installs and repairs all of them across Cornell.

Our Commercial Roofing Process

1

Commercial Roof Assessment

We inspect the entire commercial roof: membrane condition, seam integrity, flashing details, penetration seals, drain function, and insulation condition. Core samples reveal moisture levels in the existing system. You receive a detailed written report.

2

Detailed Proposal

Commercial roofing proposals from Cornell Roofing & Maintenance include detailed specs, phasing plan if applicable, tenant coordination plan, and a realistic timeline. One number, no surprises.

3

Commercial Installation

Our commercial crew installs per manufacturer specifications and NRCA guidelines. Hot-air welded TPO seams tested with a probe at every joint. Flashing details custom-fabricated for your building's penetrations. Insulation installed to achieve minimum R-value per code.

4

Warranty & Maintenance

Manufacturer warranty registered upon completion, 15-20 year coverage depending on system and build-up. We offer maintenance contracts to keep your warranty valid and your roof performing for its full life span.

What Cornell Customers Say

★★★★★ 4.7/5 from 289+ reviews
★★★★★

"Best experience we've ever had with a home service company. On time, on budget, and the results exceeded what we expected. Truly top-notch."

A
Alex K., Cornell
★★★★★

"From the first phone call to the final walkthrough, everything was seamless. The team was courteous and efficient. Already recommended them to two friends."

K
Karen W., Cornell
★★★★★

"Responded fast and got the job done right the first time. Crew was polite, professional, and cleaned up everything. Would absolutely hire again."

T
Thomas W., Cornell
Join 289+ Happy Customers — Call (877) 349-1553

Why Choose Cornell Roofing & Maintenance for Commercial Roofing?

Maintenance Programs

Annual and semi-annual inspection contracts catch problems early and keep your warranty valid. Preventive maintenance costs a fraction of emergency repairs.

18+ Years Commercial Experience

We've been installing commercial roofs in Cornell for 18 years. Retail, warehouse, office, restaurant, multi-family. We handle it all.

All Commercial Systems

TPO, EPDM, PVC, modified bitumen, built-up, metal. We install and repair every commercial roofing system. Material selection matched to your building's specific needs.

Emergency Response

Commercial roof leaks damage inventory, equipment, and operations. Emergency response within 24 hours for active leaks on commercial buildings in Cornell.

Commercial Roofing FAQ

TPO and PVC: 15-25 years. EPDM: 20-30 years. Modified bitumen: 15-20 years. Built-up roofing: 20-30 years. Proper maintenance and drainage extend life on all systems. We offer maintenance contracts to help you get the most out of your roof.

Often, yes. Localized membrane damage, failed seams, deteriorated flashings, and ponding areas can all be repaired. If the insulation is dry and the membrane is mostly intact, targeted repairs or a coating system may extend life 10-15 years.

Yes. Annual and semi-annual inspection contracts. We check seams, flashings, drains, and penetrations. Fix small issues before they become expensive ones. Regular maintenance also keeps your manufacturer warranty valid.

Have More Questions? Call (877) 349-1553

SAME-DAY APPOINTMENTS AVAILABLE

Protect Your Home — Call Cornell Roofing & Maintenance Today.

24/7 emergency service. Most appointments available within 48 hours.

Call Now — Free Estimate
📞 (877) 349-1553

★★★★★ 4.7/5 from 289+ Reviews  ·  Licensed  ·  Insured

About Our Cornell Commercial Roofing Services

Commercial roof coatings can extend the life of an existing roof by 10-15 years for a fraction of replacement cost. Silicone and acrylic coatings over existing TPO, EPDM, or metal substrates. Not every roof qualifies. We core sample and moisture scan before recommending a coating.

Call (877) 349-1553 for a free commercial roof assessment. We inspect the membrane, flashings, drainage, penetrations, and overall condition. You get a written report with photos and our honest recommendation, repair, coat, or replace.

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