O'Neil Building Systems


1500 Little Ave
Sauget, IL 62206
(618) 337-6100
Today: 8:00 AM to 4:30 PM
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.
Mon 8:00 AM to 4:30 PM
Tue 8:00 AM to 4:30 PM
Wed 8:00 AM to 4:30 PM
Thu 8:00 AM to 4:30 PM
Fri 8:00 AM to 4:30 PM
Sat Closed
Sun Closed

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