MECHANICAL CONSTRUCTORS

Trusted constructors since 1883

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This year, Freitag is celebrating its 140th anniversary. Since we began our journey in 1883, we’ve grown to become a nationally recognized firm who excels in mechanical construction services. We’re honored that so many have trusted us for their needs in construction, fabrication, welding, repair services, and more. 
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We’re celebrating 140 years in quality assurance, 140 years of innovation and 140 years of professionalism. Thank you to all our customers for these 140 years. We can’t wait to see what the next 140 years bring! ​
Freitag-Weinhardt, Inc. is a nationally-recognized mechanical contractor based in Terre Haute, Indiana. Founded in 1883, the company has significantly evolved over the years; however, our core values have always remained the same. Our commitment to mechanical construction services, whether in the field or our shop, is second to none. We stand ready to serve you, our trusted partners, every day!

INDUSTRIES SERVED

FOOD & BEVERAGE

INDUSTRIAL

LIFE SCIENCES

ENERGY

CASINO

GOVERNMENT

EDUCATION

EXCELLENCE IN SAFETY

SERVICES

PRECONSTRUCTION

FABRICATION

PROCESS PIPING

ERECTING & SETTING OF EQUIPMENT

VESSEL FABRICATION & REPAIR

​PLUMBING

HVAC SERVICE
IN THE NEWS

Mark Unger Elected President of the Mechanical Contractors Association of Indiana
July 15, 2024

Freitag-Weinhardt is proud to announce that Mark Unger, President of Freitag-Weinhardt, has been elected by a jury of his peers to serve as the President of the Statewide Mechanical Contractors Association of Indiana (MCAI). Unger's appointment is a testament to his extensive experience and dedication to the industry.