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Commercial Roofing Contractor in the mid-west

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Thank you for choosing GM Systems. Our customers have come to rely on us as a renowned roofing company offering high-quality roofing services. Since our establishment, our mission has been to give our customers the best roofing solutions and maintenance after installation. GM Systems is dedicated to the success of our customers and will always act in their best interests.


GM SYSTEMS is a full-service roofing company that specialized in providing solutions for commercial roofing. The company was established in 1999. We work hard to establish mutually beneficial, long-term partnerships with each of our clients and to ensure that the most suitable roofing solution is chosen for each one of them.
As a business, we take pride in the quality of our work, the responsiveness of our staff, and the quality of our customer service. We approach every task with the idea that it will be accomplished to the client’s complete satisfaction.


We provide the best roofing services in these locations:
Kansas City, MO Commercial Roofing
Fayetteville, AR Commercial Roofing
– Wichita, KS Commercial Roofing
– Springfield, MO Commercial Roofing
– Joplin, MO Commercial Roofing


GM Systems offers expert roofing services for a wide variety of commercial structures, including office buildings, shopping centers, schools, and storage facilities. We can install a variety of roofing systems and provide a cost-effective preventative maintenance plan to enhance your property’s safety, durability, and long-term value. Here at GM Systems, we are 100% dedicated to roofing, and it shows in everything we do.

our commercial roofing branches

Wichita, KS

Springfield, MO

Joplin, MO

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Why Choose Us

-Serving the mid west-

Since 1999

Providing Quality Commercial Roofing Since 1999

20-Year No Leak Warranty

We Provide a 20-Year No Leak Warranty On Our Full-Roof Sealing Service

Free Estimates and Affordable Pricing

Call Us To Get Free Estimates and Affordable Pricing

Highly responsive to meet customer needs

Well Trained Expert Staff Highly responsive to meet customer needs

Experienced, Licensed & Insured

Industry Experts, Experienced, Licensed & Insured

Awards & Certifications

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5 star reviews


Meet The Owner

“GM Systems was founded in 1999 by Greg Stierwalt, in a bid to address a need by providing an affordable solution to fix leaking or damaged roofs. Leveraging on elastomeric roof coatings, we currently specialize in the application of high solids silicone roof coatings as well as the installation of single ply/membrane roofing systems.

Thriving under Greg’s leadership, we now have a full suite of products to meet any need a commercial customer may require whether it be the waterproofing/sealing and repair of an existing roof or a new construction project. In this sector, having a niche business presents a number of difficulties as well as opportunities; yet, in the end, the company must still perform exceptionally well and provide products of the highest possible quality in order to be successful.

Greg attributes a significant portion of the company’s accomplishments to both the team at GM Systems and years of industry experience that has made possible the level of quality commercial roofing service GM Systems offers.

Greg Stierwalt

Greg Stierwalt - Owner

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If your building roof is in good condition and hasn’t been re-roofed before, there’s a strong possibility you can save money by adding a new roof without taking the old one off.
Sadly, there are some situations where a roof tear-off is necessary:

  • Currently, your building has two roofs: Commercial structures are only allowed to have two layers of roofing, per the law. This is done to avoid putting undue strain on the building’s structural integrity.
  • Your building’s roof is unstable. Your contractor will need to remove the current roof in order to install a new, functional roof if your roof is damaged, wet, or unstable.

To evaluate the status of your current roof, our specialists will conduct a free roof assessment. Internal deterioration, such as mold or roof leaks, are signs that your business roof may be unstable and require replacement.

Contractors start roofing projects as soon as the weather warms up. It’s best to get in touch with a contractor in the late summer to arrange a survey for when spring finally arrives in your area. They can then begin working on your job as soon as the roofing season begins.

The difficulties specific to each situation are what cause the pricing to change. We are in direct competition with all the reliable and effective commercial roofing solutions. The cost of your new business roof depends on a variety of things.

Among these elements are:

  • The Size of your roof
  • The State of the current roof
  • Roof Access
  • Insulation Strategy
  • Membrane Selection
  • Installation Selection
  • Roof Punctures
  • The Warranty Type

After one of our roofing specialists conducts a free roof evaluation and generates a roof survey report for your facility, we can assist you in developing a budget.

Your commercial’s longevity will rely on a variety of elements, including the type of roof and the weather.

The following averages apply to typical roof systems:

  • Spray Polyurethane Foam: 30 to 50 Years
  • Built-Up: 10 to 15 Years
  • Metal: 30 to 45 Years
  • Single-Ply Membrane TPO: 15 to 20 Years
  • Single-Ply Membrane EPDM: 20 to 25 Years
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Areas We Serve

GM Systems Inc’s headquarters is located in Joplin, MO but also has branches in Fayetteville, ARWichita, KSSpringfield, MO, Kansas City, MO, &, etc

Learn More About GM Systems Inc (Top Rated Commercial Roofing Company) By Visiting Our Online Profiles On Facebook, Yelp And Be Sure To Leave A Review On Google Maps.

State of Missouri

Missouri is a state in the Midwestern region of the United States. Ranking 21st in land area, it is bordered by eight states: Iowa to the north, Illinois, Kentucky, and Tennessee to the east, Arkansas to the south, and Oklahoma, Kansas, and Nebraska to the west.

Capital: Jefferson City

Points of Interest: The Gateway Arch, Silver Dollar City, The Nelson-Atkins Museum of Art

Colleges and Universities: Missouri State University, University of Missouri, Northwest Missouri State University

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Before You Go,

Get Your Free Inspection and Find Out What Needs Fixing.

Our free inspection offer is the perfect way to identify any potential issues with your property and get advice on how to address them.