We Are the Fox Valley’s Premier Commercial and Residential Roofing installer With 30+ Years of Experience and Millions of Square Feet of the Highest Quality Product Installed.

Our Services

Emergency Repair

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Our Products


We partner with the best material manufactures in the industry so we can provide the highest quality and longest lasting roofs available.

If it’s not the best, it’s not good enough for your roof!

We have over 33 years installing Duro-Last commercial roof systems. Each roof is custom fabricated to fit your roof which reduces seams, waste, and saves on labor. Duro-Last is the most environmentally friendly roofing material and has one of the best warranties in the industry.

We are also an Emerald Pro Certified installer of Malarkey residential roof systems. Malarkey Roofing Products are the makers of the industries strongest, most durable and highly sustainable shingles on the market, made of Upcycled Rubber & Plastics to reduce landfill waste, and offered with different warranty options to suit your needs.

About Warner Commercial Roofing

Warner Roofing was started by Steve Warner over 20 years ago. With over 33 years experience installing Duro-Last Commercial roofs and Residential shingle roofs. Steve has built a team of master craftsmen, he is personally involved in every install to ensure that every roof meets our quality standards.
We are passionate about small businesses and understand the impact a new roof can have on your business. We are in business to make a living – not take advantage of people.

When not working in the Midwest we donate our time to mission-based construction projects in Mexico, Haiti, and Costa Rica.

+ Years

+ Completed Projects

Trusted By

Client Testimonials

“Warner Roofing has installed numerous flat roofs for us all over the country. Never had a problem – we trust the work they do”
Dave Leblanc

Facility Manager, County Materials

“We work with Steve and his team because they stand behind their work.”
Rollie Winter

President, Rollie Winter & Associates, Ltd.

“Steve Warner and his team have been great to work with. They know what they are doing, they show up when they say they will, and best of all they stand behind their work.”

Pastor, Mission Church

Let’s Build Something Together.

What Does the Warranty Cover?
Duro-Last has the best warranty in the industry that spans 20 years and is transferable. Most important – there is no exclusion for standing water.
Do You Offer Free Estimates?
Absolutely, give us a call and we will come by to physically get on your roof and provide you a quote.
What Is Your Process?
It all starts with the estimate phase. We extract a core sample from your roof to determine if it is wet and needs to be replaced. We learn more about your needs and then give you a detailed estimate. Because the materials are custom they typically take up to a week to arrive. We then place you on our schedule to complete the work.
How Soon Can You Work On Our Project?
We are currently booked 2-3 months in advance. If you have an emergency situation typically we can make things move faster to help out.
Do You Do Residential?
Although we specialize in flat roofs – residential roofs make up 30% of our business. We have a dedicated team for these projects.