
At Korellis, we specialize in steep slope roofing solutions that combine craftsmanship, durability, and architectural appeal. From traditional asphalt shingles to premium materials like clay, synthetic, and slate tiles, we tailor our approach to meet the unique needs of each project. With decades of experience, our team understands the complexities of steep slope installations, ensuring long-lasting, high-performance results for commercial, institutional, and historical restoration projects.

Steep Slope Roofing Experts
With over 60 years of experience, Korellis has built a reputation for excellence in steep slope roofing. What began as a small residential roofing company in 1960 has grown into a leader in commercial steep slope roofing, providing high-quality solutions for both new construction and historic restoration projects. Our highly trained team specializes in everything from budget planning and design to expert installation, ensuring that every project is executed with precision and care. Whether the project requires traditional asphalt shingles or high-end materials like clay, synthetic, or slate tiles, Korellis has the expertise to deliver long-lasting, high-performance results.

Trusted for Landmark Projects
Korellis has been trusted to install steep slope roofing for some of the region’s most well-known institutions, including the University of Notre Dame, Purdue University, Valparaiso University, and Old St. Pat’s Rectory in Chicago. We have also completed projects for numerous churches, apartment complexes, and multi-family residences, preserving the integrity and aesthetics of these buildings while providing durable and reliable roofing solutions.
Comprehensive Roofing & Exterior Services
In addition to steep slope roofing, Korellis offers complementary services, including gutter replacement, soffit and fascia installation, skylight replacement, and masonry repair. With a commitment to craftsmanship and customer satisfaction, Korellis is your trusted partner for steep slope roofing and exterior restoration projects.