Welcome to Greiner Buildings Inc!

“We are pleased that you are visiting our site and hope that you enjoy your visit and learn a lot about our steel, hoop and pole buildings and services. Please take time to visit our wide array of photos and also research our many unique pole barn products including Post Saver, Glu-Laminated columns, Kynar painted metal panels and more. We aim to provide the absolute best value and best service available in the industry. Please contact us or send us a request and we will be very glad to help you!” Sincerely, Matt Greiner President Greiner Buildings, Inc.


Pole Barns, Post Frame Buildings, Pole Buildings, Steel Buildings, Metal Buildings, Hoop and More.

Located in Iowa and Illinois we offer custom pole barns for your agricultural, cattle, commercial, hobby and other needs. Residential Building and Commercial Building needs in Eastern Iowa and Western Illinois are covered by Greiner Buildings. If you’re looking for Pole Barns Iowa or Pole Buildings Illinois you’ve come to the right place! We are a Post Frame Buildings and Pole Buildings company located in Washington, Iowa and Kewanee, Illinois. Whether your needs are large or small, simple or elegant,

Greiner Buildings has an affordable solution for you! Through more than 30 years experience our team is dedicated to meeting our customer’s needs and expectations for their projects.

Greiner Custom Buildings features attention to detail and one-on-one consulting to determine the most cost effective plan for your building project.The decision to invest in a new structure is a tough one!We, at Greiner Buildings are here to help make the process as easy as possible using our 30+ years of experience in construction. By utilizing the finest building materials, skilled trades people – along with efficient team management and sales staff, Greiner Buildings will meet and EXCEED your expectations.

Greiner Buildings is located in Washington, IA and Kewanee, IL and we provide Iowa and Illinois building services such as: Pole Barns, Steel Buildings, Pole Buildings, Residential Reroofs, Barn Recovers, 2D and 3D Design, Contractor Material Packages, and Post Frame Buildings including:Commercial and Public Service, Residential and Hobby, Lined and Insulated, Ag and Machine Sheds, Shop and Cold Storage, Horse Barns, Cattle Sheds, and even Mini Storage Buildings..