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Storage Unit Builders in Iowa and Illinois

Storage units are a popular real estate investment in Iowa and Illinois. The storage unit business is unique—the building itself is the product, making it the most important part of your business. It’s important to find a storage unit builder you trust, and is known for durable, long-lasting buildings. Our highly trained and experienced employees are experts at storage unit construction in Iowa and Illinois. We’re prepared to help you every step of the way.

Reliable Storage Unit Builders

When done right, storage units are a great investment with high profit margins. You can always count on our team of experienced storage unit builders to provide quality structures. Our steel is strong and extremely long-lasting. This hardworking material keeps bad weather, insects and pests from ruining your units. It also keeps your facility clean and fresh by resisting mold and mildew. We use the most reliable and effective insulation techniques to help lower the utility bills for your climate-controlled storage building. Building with us ensures your facility is well-kept without excessive maintenance.

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Custom Metal Storage Facilities

Greiner Buildings is the premier choice for storage unit construction in Iowa and Illinois. We understand the size, appearance, and visibility of your storage building is extremely important. Your units need to both function correctly and make a positive impression on potential customers. Our experienced storage unit builders help you plan and implement the best options for your unit. We’re attentive to your needs, from blueprint design to finished product. With unmatched service, quality materials, and an expert in-house crew, you can trust Greiner Buildings with your standard or mini storage unit construction. Contact us to get started!


  • Throughout the decision process, Jeff stayed in contact with us but was never pushy. He always stressed ‘what can I do to help you through the process!’ Simply put, Jeff sold this project. Thanks for a great addition to our property!

    -Tom B., Davenport, IA

  • Competitive price and helpfulness of Greiner representative Jeff. Project manager was also very willing to help or ask any questions.

    -Darrin C., Harper, Iowa

  • Their price was very fair and the local staff’s professional attitude was great and all-in-all they did a great job.

    -John B., Toulon, IL

  • You wouldn’t believe the amount of compliments I’ve gotten about the building. I will recommend Greiner to others and use you guys for future projects.

    -Bryton K., Geneseo, IL

  • We chose Greiner Buildings because of their professionalism during the bidding process, and pre and post-construction.

    -Chris G., Washington, IA

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Accreditations / Awards

Time and time again, we’ve been nationally recognized for our custom post-frame buildings. Working for us ensures you gain valuable construction experience from the best in the business. We’re highly accredited for our work in the industry, and our employee safety program earned a Platinum Award—the highest recognition in the post-frame industry.

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