There's a reason why nearly half of our work comes from personal referrals and repeat customers.

Why Choose Greiner Pole Buildings?

‘A customer referral to family and friends is the best compliment a company can receive.’

At Greiner Buildings, we design, construct and build pole barns in Iowa and Illinois. See what our customers have to say about Greiner Building’s post frame pole building services and products. We would love to give you a free pole building quote!

Residential Construction

Whether it's a Shome® with lots of living space or a smaller man cave garage with a bar, bathroom, and office, we make it simple for customers to get a fully-finished residential pole building they can be proud to have on their primary or secondary property.


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

- Chris G., Washington, IA

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

Commercial Construction

Businesses in all different types of industries have trusted us to build their new storefront, warehouse space, or office building due to our expertise with large commercial pole building projects. From seed plants to youth community centers and even county ambulance stations – we can do it all.


We were looking for a cost-effective building that would meet our needs of size, quality. After looking at 3 competitors, we decided on Greiner Buildings as the winner. They built our fertilizer plant on time and on budget per the bid. After 8 seasons of activity, we are pleased with our plant. Throughout the entire process of bidding and construction, Greiner Buildings did a very good job on communications.

- Farmers Elevator, Wapello, IA

“You guys were proactive and open to our unique building design and instrumental in the assistance in the design work. We were very happy with the whole process from design to completed project. The very minor rework items were quickly and professionally handled.”

- Mike A., Smithshire, IL

"Good reputation, promptly responded to calls, fair pricing. Building representative was very nice and easy to work with."

- Erik E., Iowa City, IA

"Really liked your team approach to getting the building erected. Everyone knows his part and everyone was great. Special thanks to Tom who helped solve a local building inspector issue that arose in an untimely fashion. I am waiting to get the electrical service and heating/cooling unit installed, along with insulating the building and then I would like Greiner to return and put in their specialized ceiling. Greiner also generously gave a donation to our Caring Hands organization. We will use the building to hold US donations to be shipped to Africa. Thanks for everything.” C. Holt President Caring Hands Foundation"

- Charles H., Davenport, IA

This crew just shows up and gets the job done. The number of years of experience for the team members says a lot. Just fascinating to watch them work… We were really impressed by the efficiency of your entire team and excellent quality of work – thank you!

- Brian R. – Mt. Vernon, IA

Agricultural Construction

There's a reason people often refer to pole buildings as "pole barns." These types of buildings can be found on farms all across the midwest. Farmers and agricultural workers know they can depend on Greiner Buildings to create a custom ag building that fits their needs and will last for generations to come.


"Because they build the whole building, I didn’t have to line up building contractors and concrete contractors, they come in and take care of the whole project and I was told they do quality work and so far that is true, I’ve had a good working relationship with them.”

- Doug B., Oakville, IA

"Greiner offered us the best price on exactly what we wanted. I was very happy with our rep, and the references were positive. From start to finish, great experience. The guys didn’t even leave a cigarette butt behind when they were done. Outstanding!”

- Dave R., Traer, IA

“Great company to work with. Everyone involved in the project goes above and beyond! Will only use Greiner for my next project.”

- Mickey H., West Liberty, Iowa

“I think this building is 10 years old. It’s holding up fine. I’m very pleased. Recently I needed some information about the building. I was very impressed that Greiner was able to supply the information.”

- Wilbur Q.

Iowa and Illinois Accredited NFBA Builders. Washington, Clive, Kewanee, Quad Cities, Muscatine, Burlington, Des Moines, Ankeny, Winterset, Cedar Rapids, Iowa City, Solon, North Liberty, Mount Pleasant, Fairfield, Pella, Tipton, Williamsburg, Newton, Keota, Sigourney, Hiawatha, Marion, Columbus Junction, Wapello, Oskaloosa, Knoxville, Marshalltown, Altoona, Urbandale, West Des Moines, Bettendorf, Davenport, Ames, Kalona, Riverside, West Liberty, Princeton, Geneseo, Galesburg, LaSalle, Dixon, Rock Island, Moline, Wyoming and Sterling. Iowa and Illinois Quality Built Post Frame Pole Barns.