Your Roof, Our Expertise

Your Roof Deserves More Than a One-Size-Fits-All Fix

Different parts of your building might need different roofing materials—and that’s not something every roofer can handle.

Roofing shouldn’t be complicated.

Many business owners don’t realize their building may require multiple roofing systems to perform at its best. It’s common to see a combination of flat membrane roofing, metal details, and sloped shingle areas across a single structure. But most contractors only specialize in one system—leaving you juggling multiple bids, managing separate vendors, or compromising on materials that weren’t designed for the job.

A worker in a neon yellow shirt kneels on a rooftop, sealing the base of an HVAC unit with a tool under bright sunlight.

You Don’t Need to Be the Roofing Expert.

When it’s time to repair or replace your roof, the last thing you need is a contractor with a one-size-fits-all approach. Commercial properties often combine multiple roofing systems—EPDM or PVC on flat sections, metal on facades or awnings, and shingles on sloped areas. If your contractor isn’t experienced across all of these, you’re left coordinating multiple vendors, facing scope gaps, or dealing with materials that weren’t meant to work together.

At Holthaus Roofing, we’ve spent over 30 years helping commercial clients get the right system for every part of their facility. As certified experts in membrane, metal, and steep-slope roofing, we take a comprehensive approach—ensuring your building gets a unified, high-performing solution from one reliable team. Fewer delays, clearer communication, and a roof that works the way it should.

Signs of a Mixed-Roof System

Flat or Gently Sloped Areas

Different Rooflines on Additions

Detached Structures with Metal Roofing

Uneven Snow or Water Retention

Varied Roofing Materials

Inconsistent Aging or Wear

Multiple Roofing Contractors Used

Visible Seams or Transitions

Different Roof Colors or Textures

Varying Roof Heights

Mixed Roofing Styles

Complex Roof Geometry

Frequent Repairs Needed

Different Roofing Warranties

Multiple Roofing Layers

Visible Flashing Issues

Inconsistent Roof Ventilation

If unsure, schedule a free inspection.

Our Easy 3-Step Process

Discover how simple roofing can be with our streamlined approach.

1

Schedule Your Free Inspection

We conduct a thorough evaluation of your entire roof, ensuring no detail is overlooked.

2

Receive a Comprehensive Plan

Get a clear, detailed proposal that outlines every aspect of the project.

3

Experience Peace of Mind

Enjoy a seamless process with one point of contact and a single warranty covering everything.

A white pickup truck with roofing equipment, a red ladder, and “Holthaus Roofing Contractors” branding is parked outside a commercial building under a clear blue sky.

Our Promise of Integrity

Holthaus Roofing is dedicated to serving the Midwest with unwavering integrity. We pride ourselves on delivering quality craftsmanship and honest service to every client. Our commitment to excellence ensures that your roofing needs are met with precision and care, reflecting our core values in every project we undertake.

Quality You Can Trust

With over three decades of experience, Holthaus Roofing has built a reputation for reliability and superior workmanship. We approach each project with a focus on quality, ensuring that every detail is handled with the utmost professionalism. Our team treats your property as if it were our own, providing solutions that stand the test of time.

Community-Centric Approach

Being part of the communities we serve, we understand the importance of trust and transparency. Our local roots drive us to offer roofing solutions that not only meet but exceed expectations. We are committed to fostering long-term relationships with our clients, ensuring satisfaction and peace of mind through every season.

Ready for a Stress-Free Roofing Experience?

Take the first step towards a seamless roofing project by scheduling your free consultation today. Our expert team is here to guide you through the process, offering tailored solutions that fit your needs and budget. Let us handle the details, so you can focus on what matters most.