Family-owned St Louis union-based HVAC contractor


We offer the best St. Louis Geothermal, HVAC and Architectural Sheet Metal!

You Can Feel Good About SMCI

Trust Sheet Metal Contractors, Inc. to do the job for you. Our experience ranges from high schools, banks and construction projects to residential and light industrial geothermal and architectural sheet metal services around the St. Louis area.

"Sheet Metal Contractors Inc. (SMCI) recently installed a new HVAC system at Barnwell Middle School in the Francis Howell School District. We found SMCI to have provided excellent customer service, craftsmanship, and cost control. We were very pleased with the job from start to finish."

Rick Pavia

Director of Operations and Facilities

Francis Howell School District

"In 2010, I worked with Sheet Metal Contractors when they installed a complete "DAIKIN" system at the Valley Park Middle School. Their professionalism and service were outstanding. Larry Krodinger and his team are reliable and take pride in all that they do. I am extremely satisfied with the equipment, installation, service technicians, and office staff. I am proud to recommend the products and services that SMCI has to offer."

Arthur Floyd

Project Manager

Glenn Construction Company Inc.

"Goodwin Brothers Construction Co. has had a long, working relationship with Sheet Metal Contractors of DeSoto, MO, which has spanned over a period of 35+ years. We have worked with their company in all facets of the industry, covering industrial, institutional and health care . More specifically, work related to the health care industry has beenat Mercy Jefferson (formerly Jefferson Regional Medical Center). During the time from 1984-2005, Sheet Metal Contractors completed numerous projects throughout the complex, all while being occupied and some are listed below:

  • 2-story addition and expansion of 5-story patient tower
  • Two 3-story medical office buildings
  • Surgery center construction and expansion
  • Emergency Room addition to patient tower
  • Complete renovation of all existing operating rooms
  • Renovation and expansion of existing laboratories
  • Ambulatory care facilities
  • Outpatient surgery center
  • Sleep lab facility
  • Cancer center building
  • ICU expansion and renovation
  • Addition and expansion of radiology and imaging center
There were numerous projects during this period of time that involved many interior departments of the hospital, and this work was performed without disrupting the existing day-to-day operations. All of the work was completed to the satisfaction of the Owner, Architects, and Engineers. We would highly recommend Sheet Metal Contractors for any work you are considering them for within the health care industry or any other industry."

Larry W. Goodwin


Goodwin Brothers Construction Co.

"Sheet Metal Contractors, Inc is one of the best mechanical contractors in the region. Professional, prompt, reasonable and informed. Great People"

Fred Hof

Vice President

Hof Construciton

"Sheet Metal Contractors accepted an almost impossible challenge and made it look easy. Rosati-Kain High School is located in the Central West End of St. Louis. Our three story structure, built in 1921, was constructed to be architecturally significant. Until the summer of 2011 is was heated with a boiler/radiator system and cooled with window units. Fresh air was supplied only by opening windows. The challenge was to remove the antiquated radiators and piping, install the Daikin HVAC system, and have the building ready for occupancy by the opening day in August. There are only 10 weeks from the time the school year closes for students and the next year opens. Sheet Metal Contractors met the challenge at every step. Through the planning stages to turning the building over for use, they were great. While the technical aspect of their work is not my specialty, I can attest to the courtesy and respect with which they treated our building and our staff as well as the other construction professionals on the job. Team work and diligence were evident every day of the project. To have a project of this magnitude accomplished on time and on budget is a tribute not just to Sheet Metal Contractors' work but also their ability to work with us and all the variables not in their control. In addition, they have been most helpful and patient as they assist us in understanding and operating this new system. It is my pleasure to highly recommend Sheet Metal Contractors and to invite anyone considering their work to visit Rosati-Kain High School to see the results first hand."

Sister Joan Andert, SSND


Rosati-Kain High School

"I am pleased to write a letter of recommendation for Sheet Metal Contractors, Inc. They have worked in our school district this past year and we have been very happy with both their work and customer service. We had an issue at our Middle School that we had dealt with for 10+ years and Sheet Metal Contractors came, gave us a fair estimate, and fixed a long time issue in a very acceptable period of time. I am happy to recommend Sheet Metal Contractors to anyone! Please call with any questions."

Dr. Joy Tucker

Superintendent of Schools

St. James R-l School District

"The quality of service that your company provides is a rare find these days and did not go unnoticed by Bayless staff, administrators, and board members. I look forward to having the chance to work with you and your company again in the future."

John C. Stewart

Chief Financial Officer

Bayless School District

"It has been my privilege to work with Larry Krodinger and the staff members of SMCI for six years. Larry and his staff  have offered great solutions to our HVAC needs, been quick to resolve service issues and has provided a tremendous partnership with the District. The De Soto School District has been fortunate to work closely with SMCI to meet the needs of our buildings' HVAC needs. I highly recommend SMCI for all of your HVAC needs!"

Chuck Hasty

Assistant Superintendent

De Soto School District

"Sheet Metal Contractors is a fine company that understands and responds to the needs of their customers."

Vernon Sullivan

Fox School District

"Sheet Metal Contractors, Inc has performed numerous projects for us at Jefferson College; ranging from small to large projects in scope and costs. The service has involved new installations, repair and replacement of HVAC equipment. I appreciate the professional and timely service provided by SMCI. They have consistently completed projects on time and within budget. We have utilized SMCI for advice and expertise on the design of new installations."

Jerry Greenstreet

Buildings and Grounds Department Director

Jefferson College

"Sheet Metal Contractors, and Mr. Larry Krodinger, have been ardent supporters of St. Pius X High School. As an alumnus of the school, and member of the first graduating class, Larry has taken St. Pius' mission statement of "giving extraordinary care" to heart. He has been a member of the first Advisory Board for St. Pius and has worked diligently on the Building and Grounds committee of the Board. Larry is always supportive with his own personal resources, and is generous with his time and advice, which the school finds priceless. Larry's commitment to St. Pius X has become a family tradition. His family is a third generation legacy. He has chaired the St. Pius X Invitational Golf Classic for many years helping to advance the mission of the school. St. Pius is proud of Larry and thankful for his involvement and support."

St. Pius X High School

"This letter is to acknowledge the outstanding performance that Sheet Metal Contractors has put forth to assist in the successful completion of the Eagle Bank Manchester. As a General Contractor we here at Simms spend a tremendous amount of time continuously working with a variety of subcontractors on a daily basis to coordinate the work trades and work out various scope and/or contractual issues. However, we feel that it is equally important that we also take the time to recognize those companies that have done an exceptional job to work as a team player with the Simms Building Group to coordinate their work and allocate the proper resources to ensure that their respective scopes of mod are completed on schedule while continuing to sustain a high standard of quality."

Floyd Simms


Simms Building Group

636.337.2150 for energy efficient solutions that save you money!
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