Denny Zimmerman and another contractor standing in front of a recently completed roofing job

Your Friendly, Neighborhood Roofers

Welcome to Denny Zimmerman Roofing, where quality craftsmanship and building friendly client relationships are at the heart of everything we do. For over 20 years, we’ve proudly served homeowners and business owners throughout Central Illinois as a family-owned and locally operated roofing company. Denny Zimmerman and his crew dedicate themselves to the success and protection of your community, ensuring everyone has one thing in common: a safe, secure, and beautifully constructed roof.

Our Mission

Our goal is simple but meaningful—to give you peace of mind with a secure, leak-free, and energy-efficient roof over your head. We understand that your roof is one of the most significant investments in protecting your home or business, and we take that responsibility seriously. Hence, we only hire experienced, in-house contractors and utilize premier roofing products. Whether fixing your home’s roof or replacing your business’s roof system with flat or metal roofing, we dedicate ourselves to you and your property.

What Sets Denny Zimmerman Apart?

Here’s what makes Denny Zimmerman Roofing the trusted choice of roof contractors in Central Illinois:

  • Free Roof Inspections – Not sure if your roof needs repairs or replacement? We’ll happily assess it at no cost to you.
  • Licensed, Bonded, and Insured – Our team of roofing professionals brings expertise and reliability to every job.
  • Family-Owned, Local Values – Since 1990, we’ve been committed to serving our community with honesty and integrity.
  • Certified Malarkey Shingle Installer – We install Malarkey Roofing Products, known for their durability, performance, and eco-friendly innovations.
  • Malarkey Shingles Emerald Pro Warranty- Top Malarkey product providers must undergo a certification process. In turn, our clients receive an exceptional warranty for non-prorated shingles.
  • Storm Repair Specialists – From storms to everyday wear and tear, we’re just a call away to offer solutions.
About Us

Our Commitment to Our Customers

At Denny Zimmerman Roofing, we treat every roof like our own. Whether patching up damage from a fierce Illinois storm or installing a roof meant to endure for decades, we approach every project with care, respect, and top-tier materials. Our team is here to ensure your roofing system functions perfectly and looks its best.

Invest in an Exceptional Roof with Denny Zimmerman

We’re more than just a roofing company. We’re your neighbors, friends, and partners in protecting the spaces that matter most to you. We’d be honored to help with your roofing needs and continue building a reputation of trust across Central Illinois.

Reach out today for a free inspection or consultation. At Denny Zimmerman Roofing, we’ve got you covered (literally)!

Our Team

Killian

Killian

Say hello to Killian, our project manager! It’s his face you will see from start to finish on the day of your build. Killian is there to make sure the job is done well and to the highest standards. A little about Killian, he married into the Zimmerman family, and was quickly brought into the roofing fold! He is hard working, cheerful, and will make sure the job is done just how you want. An artist at heart, Killian’s attention to detail enables him to ensure the job is done well!

Evan

Evan

Meet Evan Nestel, our founder’s son-in-law and our go-to guy for sales and customer support. Evan is readily available to discuss your roofing needs and address all your concerns. He will take the time to do a thorough inspection of your roof and walk you through every step of the process. Evan is an avid reader and is always ready to discuss the latest book he has his nose in.

Denny

Denny

It’s the man, himself! As a proud father of 7 children and 10 grandchildren, Denny Zimmerman believes integrity and kindness are key to building both a family and a business. He started our roofing company to support his family and serve his community. With the desire to provide a high-quality roof at an affordable price, he is always ready with a cheery quip and some farm-grown wisdom.