IWR North America, 1054 Central Industrial Dr, Saint Louis, MO 63110, US

At O?Neil Building Systems, we don?t think you should have to settle for ?basic? just to save a little money. For over 40 years, we?ve been custom builders of high quality, post-frame structures for residential and commercial customers in Southern Illinois, Missouri, and all over the Midwest.We approach each project as a blank canvas and a world of potential. Our talented staff includes design, construction, and engineering professionals who will work with you to create a structural plan that meets your needs, desires, specifications ? all within your budget.The structural materials and components we use to create your building are of the highest quality, from trusted, world-class manufacturing partners, and are backed by some of the strongest warranties in the industry.And our construction craftsmen ? from the yardmen to the carpenters and foremen ? all take pride in helping to create a building that you?ll own with confidence and satisfaction for years to come.So whether you want a home, a commercial building, a building for extra storage, or a pole barn, O'Neil Building Systems can meet your needs.

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