Rockford Superior Commercial Flat Roofing

#1 Roofing Contractor in Winnebago County

Rockford Superior Commercial Flat Roofing is proud to be the #1 commercial roofing contractor in Winnebago County. With over 28 years of hands-on experience, we specialize in Commercial Flat Roof Installation, Commercial Flat Roof Repair, Commercial Roof Maintenance, Commercial Roof Sealing, Commercial Reflective Roofing Installation, and Commercial Roof Inspection and Assessment. Our team has managed and completed complex, multimillion-dollar projects for major clients—including hotels, apartment buildings, and historic landmarks—delivering durable, energy-efficient, and cost-effective roofing solutions tailored to every structure.


As a C-39 licensed contractor, we are factory-trained and certified by top manufacturers such as GAF, Carlisle SynTec, Firestone, Johns Manville, and CertainTeed, allowing us to install and service all major commercial roofing systems backed by full manufacturer warranties. What sets us apart in Rockford and throughout Winnebago County is our deep technical expertise, commitment to quality craftsmanship, and the long-term protection we provide through no-dollar-limit warranties of up to 30 years.

98%

Customer satisfaction rating in post-project surveys.

1.2 Million

Square feet of roofing installed

85%

Repeat and referral businesses

20%

Faster completion time compared to competitors

References of Big Commercial Roofing Projects We've Done

The Most-Reliable Commercial Roofer in Rockford, IL

  • Rescued countless unfinished or failed roofing projects left behind by inexperienced contractors, using our advanced knowledge of roof engineering and proper construction practices.


  • Financially secure and well-capitalized, ensuring every commercial roofing project continues smoothly without budget interruptions or costly delays.


  • Factory-trained and certified by top manufacturers: GAF, Carlisle SynTec, Firestone, Johns Manville, and CertainTeed


  • Qualified to install and service all major commercial roofing systems such as TPO, PVC, EPDM, modified bitumen, built-up roofing (BUR), and metal roofing, all backed by manufacturer-approved warranties.


  • Certified in energy-efficient roofing solutions, including cool roof systems and reflective coatings, for better roofing sustainability.


  • Experts in advanced diagnostics, we offer infrared moisture scanning, leak detection, and preventive commercial roof maintenance to extend roof life and minimize downtime.


  • Exclusive 50-Year Golden Pledge Warranty available for shingle roofing—an honor achieved by only about 1% of roofing contractors nationwide.



  • Up to 30-Year Warranty on commercial flat roofing systems, with no dollar limit protection that guarantees full replacement in the rare event of roof failure.

Our Commercial Roofing Services

What Commercial Roofing Issues Do We Address?

Leaking Roof

We locate and repair leaks using advanced moisture detection and thermal imaging to pinpoint problem areas without unnecessary tear-offs. Our technicians ensure watertight sealing and long-term protection to prevent future water intrusion.

Ponding Water

Our team corrects drainage issues by regrading low spots, installing tapered insulation systems, or adding new drains where needed. This eliminates standing water that can cause membrane damage and structural stress.

Damaged and Aged Membranes

We restore or replace worn-out roof membranes with durable, energy-efficient materials like TPO or EPDM. Our process ensures minimal disruption to your operations while extending your roof’s lifespan.

Poor Insulation & Energy Loss

We upgrade roofing insulation and install reflective coatings to improve your building’s thermal efficiency. This helps reduce utility costs and maintains consistent indoor comfort year-round.

Flashing Failure

Our technicians inspect and reinforce all flashing areas around vents, HVAC units, and edges to prevent water infiltration. We use high-quality sealants and proper installation techniques for long-lasting performance.

Storm or Wind Damage

After severe weather, we conduct thorough inspections to identify loose panels, punctures, or uplifted materials. We perform fast, reliable repairs to restore the roof’s integrity and prevent further damage.

How much does it cost to install a commercial roof in Rockford, IL?

Commercial roofing systems cost between $6.00 and $22.00 per square foot, depending on the type of system selected and project complexity. Below is a breakdown of typical price ranges for popular commercial roofing materials:

Roofing Type Typical Cost Range (per sq ft)
Single-Ply TPO $7.00 – $15.00
EPDM (Rubber Membrane) $6.00 – $14.00
Single-Ply PVC $8.00 – $15.00
Modified Bitumen $9.50 – $16.00
Built-Up Roofing (BUR) $10.00 – $22.00
Metal Roofing (Flat/Low Slope or Sloped) $12.00 – $18.00

Professional, knowledgeable, and dependable — truly the best roofing company in Winnebago County.

Melissa Kendall

Property Manager, Midtown Business Center

“We couldn’t be happier with the maintenance and repair work they’ve done for our commercial buildings.”

Tom Sanders
Facilities Director, Northern Illinois Logistics

"We had major leaks and structural issues that other contractors couldn’t fix, but their team handled everything flawlessly. The project was completed ahead of schedule, and the workmanship is outstanding — our roof looks and performs better than ever."

David Roosemore
Operations Manager, Rockford Manufacturing

Commercial Roofing FAQs

  • What types of commercial roofing systems do you install, and how do I know which one is best for my building?

    We install TPO, PVC, EPDM, Modified Bitumen, BUR, and metal roofing systems. Our experts assess your building’s structure, climate exposure, and energy needs to recommend the most effective option.

  • How long does it typically take to install or replace a commercial roof?

    Most commercial roofing projects take one to three weeks, depending on roof size, material type, and weather conditions.

  • Can you work around our business hours to minimize disruption to operations?

    Yes — we offer flexible scheduling and phased installations to ensure your business can continue operating safely during the project.

  • What kind of warranty do you offer on materials and workmanship?

    We provide manufacturer-backed warranties of up to 30 years for flat roofs and up to 50 years for shingle systems, along with our own workmanship guarantee.

  • Are your installers factory-certified by roofing manufacturers?

    Yes, our technicians are factory-trained and certified by leading manufacturers such as GAF, Carlisle SynTec, Firestone, Johns Manville, and CertainTeed.

  • How do you ensure proper drainage and prevent ponding water on flat roofs?

    We design each roofing system with engineered slopes, tapered insulation, and precision drainage solutions to eliminate standing water.

  • Do you provide roof inspections and maintenance plans after installation?

    Yes, we offer scheduled inspections and preventive maintenance programs to extend roof life and maintain warranty compliance.

  • What safety measures do you take during commercial roofing projects?

    Our crews follow OSHA safety standards, use fall protection systems, and conduct daily safety checks to ensure a secure job site.

  • Can you repair or retrofit an existing roof instead of replacing it completely?

    Absolutely — we can repair, recoat, or retrofit existing roofs when the structure is sound, saving time and reducing overall project costs.

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