Commercial
Roofing

Your Roofing Experts in Central
and Western Illinois

Get Your No-Obligation Assessment

Advocate

We work with you during the claims process.

Advise

We create a comprehensive solution.    

Install

We use premium materials and expert roofing professionals.

assess

We carefully review the project to ensure quality at every step.

Relationships built on trust.
Respect that is earned.

More about Holthaus

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“To the entire team of guys that worked on my roof…A HUGE THANK YOU!!!!!! Each and every one of them were courteous, professional and made the roof replacement a little more enjoyable. They made sure each day that all of the areas they were working were cleaned up and looked as if they were never there. Each of them appeared to have the knowledge that they needed and a willingness to go above and beyond to ensure that we will have a great roof for many years to come.”

Juli Bill, President
Midwest Commercial Manufacturing

Duro-Last Elite Contractor

Certified by Duro-Last, a leader in commercial roofing, we bring top-tier expertise in installing their high-performance roofing systems. Every installation follows strict standards for quality and safety, offering you superior warranties and long-lasting, reliable protection. Specializing in low-slope roof systems, we deliver durable, weather-resistant, and energy-efficient solutions you can trust.

Get Your No-Obligation Assessment

No matter what type of roof you have, we can fix it.

Call 309-647-9209

Shingles

Metal

Slate

Stone Coated Steel

Low Slope/Membrane

Check out some of our commercial projects

Holthaus Commercial Roofing Project
Aerial view of a hospital building, its roof meticulously maintained by Holthaus Roofing Services. The parking lot is full of cars, with signs reading "GMG" and "Patient Tower Entrance." The surrounding area includes trees and other buildings.
An aerial view of the Holthaus industrial building showcases a spacious parking lot filled with cars, all surrounded by lush grassy areas and a neatly paved road. The day is clear, highlighting the structure's craftsmanship and hinting at reliable roofing services.
A modern red-brick and glass bank building, expertly constructed by Holthaus with a flat roof, is surrounded by trees under a partly cloudy sky.
Aerial view of a large, single-story commercial building with a white roof by Holthaus Roofing Services and the sign "Lakeland" on the front. It's surrounded by a parking area and greenery, set against a rural landscape.
Aerial view of a large brick building with a parking lot and surrounding greenery. An American flag is visible near the entrance, highlighting Holthaus's expert roofing services discreetly integrated into the structure’s design.
Aerial view of a hospital building with a well-maintained roof and expansive parking lot, surrounded by trees and other buildings under a clear sky.

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“Nick, from the start you took the time to explain every step of the process, materials used and even line by line compared warranties for me so that I would be able to make my choice based on knowledge not just numbers.  As we both know it is not just all about the numbers. So, thank you for taking all the extra time and energy on helping me understand an industry that I am not at all familiar with.”

Juli Bill, President
Midwest Commercial Manufacturing

Ready to start on your roofing project?

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