Knoll Steel was founded in 1986 by Kenneth Knoll and incorporated in 1989 as Knoll Steel, Inc., a structural steel fabrication shop.From humble beginnings in Wauconda, IL to its present facility located on Route 12 in Spring Grove, IL. Knoll Steel, Inc. has grown rapidly over the last 22 years, now employing 15 people. During that time we have installed structural steel in thousands of residential homes and erected many commercial buildings in the Northern Illinois/Southeastern Wisconsin areas.Knoll Steel, Inc. also offers precast, hand rail and steel pan stairs and fabrication for custom applications along with crane rental services.
Knoll Steel, Inc. is widely accepted as a leader in our industry.

We pride ourselves on quick turn around with competitive quotations, dependable on-time quality installations and provide same day answers to customer service questions.This is all made possible by our dedicated office personnel, shop foreman and crew, and field foreman and crews.Our company continues to grow as does our commitment to the steel fabrication industry. We are ready to assist you with your next project.