Steam Generation and Heat Transfer Specialists Since 1985

Quality products. Custom solutions. Dependable support. Protherm's reputation for outstanding, personalized service has won over clients across the United States, Canada, and Mexico. Whether you need a single gasket, or a whole new boiler house, Protherm has the quality parts and engineering expertise to solve your problems today, and offer you ongoing support tomorrow.

  Industries Served

Food Plants
Chemical Plants
Pet Food Plants
Dairies
Hospitals
Airports
Oil Refining
          Pharmaceutical Plants
University Power Plants
Can Manufacturing Plants
Engineering Consultants
Steam Plants
Grain Processing Plants
Ethanol Plants
          Power Utilities
Automotive Manufacturing
Biofuels Plants
Machinery Manufacturing
Metals Processing Plants
Mechanical Contractors
...and more!

  Contact Our Staff

Protherm Corporation
11108 South Towne Sq
St. Louis, MO 63123
P: 314-894-6720
F: 314-892-0107

Find us on Google Maps!
John Wiesehan
President, MSME
Registered Professional Engineer
Licensed Stationary Engineer
Cell: 314-412-6720
jwiesehan@prothermcorp.com
Marilyn Wiesehan
Vice-President
mwiesehan@prothermcorp.com
                   
Mike Braun
Licensed Stationary Engineer
Cell: 314-299-4929
mbraun@prothermcorp.com
Keri Dowell
Inside Sales &
Office Management
kdowell@prothermcorp.com
Robert Wiesehan
Accounts & Bookkeeping
rob@prothermcorp.com