★★★★★ 4.9 Stars · 203+ Reviews

Professional Roofing Services in Onarga

Same-Day Appointments Available · 24/7 Emergency Service

Flat Rock Roofing & Maintenance — GAF Master Elite Certified. Licensed. Insured. Serving Onarga from Flat Rock.

Call (877) 349-1553

📞 (877) 349-1553

Crews available today · No travel fees to Onarga

Same-Day Service Licensed & Insured Free Estimates

<60 Min

Response Time

23+

Years Experience

4.9

Star Rating

203+

Happy Reviews

Onarga homeowners trust Flat Rock Roofing & Maintenance for roof repairs, replacements, and storm damage restoration. We hold certifications from GAF, Owens Corning, and CertainTeed, which means the manufacturer stands behind our work just as strongly as we do.

Our Services in Onarga

FREE INSPECTION

Roof Replacement

Full tear-off and replacement with GAF Timberline HDZ, Owens Corning Duration, or CertainTeed Landmark shingles. Includes ice and water shield, synthetic underlayment, new drip edge, and ridge ventilation. Most Onarga roofs completed in a single day.

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SAME-DAY ESTIMATE

Roof Repair

Leak repairs, missing shingle replacement, flashing reseals, pipe boot replacement, and valley repairs. We diagnose the actual problem with a hands-on inspection — no guessing from the ground. Written estimate before any work starts.

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EMERGENCY TARPING

Storm Damage Repair

Hail damage, wind damage, and rain intrusion repair for Onarga homes. Free storm damage inspections with photo documentation. We handle the insurance claim process from filing through supplement negotiation.

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FREE CONSULTATION

New Roof Installation

New construction and addition roofing with manufacturer-certified installation. We work from architectural plans, coordinate with your builder, and install to factory specs so your warranty is valid from day one.

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40-70 YEAR LIFESPAN

Metal Roofing

Standing seam and exposed fastener metal panels in steel and aluminum. 40 to 70 year lifespan with minimal maintenance. Energy-efficient cool-roof coatings available for Onarga heat.

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AVAILABLE

Shingle Roofing

Shingle Roofing services for Onarga — call for details.

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COMMERCIAL & RESIDENTIAL

Flat Roofing

TPO, EPDM, and modified bitumen systems for flat and low-slope roofs. Proper drainage, flashing details, and penetration sealing to prevent ponding water. Commercial and residential flat roofs in Onarga.

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MAINTENANCE PLANS

Commercial Roofing

TPO, EPDM, PVC, and built-up roofing for Onarga commercial properties. Office buildings, retail centers, warehouses, and multi-family. Preventive maintenance contracts available to extend roof life.

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AVAILABLE

Gutter Installation

Gutter Installation services for Onarga — call for details.

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AVAILABLE

Roof Inspection

Roof Inspection services for Onarga — call for details.

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AVAILABLE

Emergency Roof Repair

Emergency Roof Repair services for Onarga — call for details.

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AVAILABLE

Skylight Installation

Skylight Installation services for Onarga — call for details.

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What Onarga Customers Say

★★★★★

"The Golden Pledge warranty was a big factor in our decision. 25 years on workmanship plus 50 on materials. Flat Rock Roofing & Maintenance is one of the few local companies that can even offer it."

— Daniel T., Onarga

★★★★★

"Our flat roof on the garage had been patched five times by other companies. Flat Rock Roofing & Maintenance stripped it and put on a proper TPO membrane. No leaks in two years. Should have called them first."

— Thomas G., Onarga

Join 203+ Happy Customers — Call (877) 349-1553

Why Onarga Residents Choose Flat Rock Roofing & Maintenance

Licensed, Bonded & Insured

Flat Rock Roofing & Maintenance carries full liability insurance and workers' compensation for every crew member. We're licensed across IL and pull local permits for all Onarga projects. Your property and your investment are protected.

Free Inspections & Honest Estimates

We don't charge for inspections and we don't pad estimates. If your Onarga roof needs a repair, we'll tell you. If it needs a replacement, we'll explain exactly why. No high-pressure sales, no scare tactics.

Manufacturer-Certified Installation

We hold certifications from GAF, Owens Corning, and CertainTeed. That means the manufacturers have trained and vetted our crews and will back our installations with their strongest warranties. Your Onarga roof gets factory-level quality control.

No Subcontractors

Every Onarga roof is installed by our own trained crews, not subcontractors pulled from a labor pool. That means consistent quality, accountability, and a crew that knows our standards from the first nail to the last drip edge.

Onarga Roofing FAQ

Most residential roofs are completed in a single day. We stage materials the day before and our crew arrives at 7 AM. Larger homes, steep pitches, or multi-layer tear-offs may take two days. We never leave a roof uncovered overnight.

Yes. We offer 12-month same-as-cash, low-interest plans up to 144 months, and no-money-down options. Credit approval takes about five minutes. A new roof shouldn't drain your savings, and financing lets you get it done now.

You get two warranties: the manufacturer's material warranty (30-50 years depending on the shingle) and our written workmanship warranty. As a GAF Master Elite contractor, we can offer the Golden Pledge. That's 25 years on workmanship plus 50 years on materials.

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SAME-DAY APPOINTMENTS AVAILABLE

Do Not Let a Small Leak Become a Big Problem. Call (877) 349-1553 Today.

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

Call Now — Free Estimate

📞 (877) 349-1553

★★★★★ 4.9/5 from 203+ Reviews · Licensed · Insured

About Our Onarga Roofing Services

Our Onarga roofing services include full tear-offs, re-roofs, repairs, emergency tarping, ventilation upgrades, gutter replacement, and skylight installation. If it's on or attached to your roof, we do it.

The first step is always a free inspection. Call (877) 349-1553 and we'll have a certified inspector at your Onarga property within a couple of days. Storm damage? We prioritize those calls and can usually get out same-day.

Flat Rock Roofing & Maintenance is based in Flat Rock and our crews are in Onarga regularly, typically multiple times per week. There are no travel fees for Onarga jobs.

Other Areas We Serve

Robbins, IL → Steeleville, IL → Watseka, IL → Arrowsmith, IL → Burlington, IL → Creve Coeur, IL → Evanston, IL → Hamilton, IL →