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TB Mansfield & TM Service

TB Mansfield & TM ServiceTB Mansfield & TM ServiceTB Mansfield & TM Service

TB Mansfield & TM Service

TB Mansfield & TM ServiceTB Mansfield & TM ServiceTB Mansfield & TM Service
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Operating Since 1963

Our Leaders

1st Generation


Thomas B. Mansfield, Co. founder 

Thomas Mansfield Sr. started our 

family-owned and operated

business in 1963.


    Awards

    Our Core Values

    Vision

    Core Values

    Core Values

    We are the most trusted sales, service, and parts solution for commercial and industrial boilers in the Rocky Mountains.

    Core Values

    Core Values

    Core Values

    • Honesty
    • Respect
    • Reliability / Dependability
    • Loyalty / Commitment
    • Passion / Enthusiasm

    Mission

    Core Values

    Mission

    Dedicated to providing robust solutions to keep the heart of the facility firing safely.

    Awards

    Cleaver Brooks

    Cleaver Brooks

    Cleaver Brooks

     2024

    Clearfire Water

    Conversions

    Parts



    Cleaver Brooks

    Cleaver Brooks

    Cleaver Brooks

     2023

    Aftermarket Conversion

    Firetube

    Packaged Water System



    Cleaver Brooks

    Cleaver Brooks

    Cleaver Brooks

    2022

    Conversions

    Engineered Boiler Systems 

    Cleaver Brooks

    Cleaver Brooks

    Cleaver Brooks

    2021

    Burner Systems

    Clearfire Steam

    Commercial

    Conversions

    PWS 

    Cleaver Brooks

    Cleaver Brooks

    Cleaver Brooks

    2020

    Burner Systems

    Clearfire Water

    Economizers

    Commercial

    Conversions Only

    Engineered Boiler Systems

    PWS 

    Exhaust Solutions

    Firetube

    Parts Only

    Total

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    TM Service, Co.

    789 Park Street, Castle Rock, Colorado 80109, United States

    (303) 781-7878

    Copyright © 2025 Thomas B Mansfield Co. - All Rights Reserved.

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    Boiler Operator Training

     August 19 - 21, 2025 

     3-Days Covering: Boiler Operations, Controls and Applications 

    Embassy Suites Denver Tech Center

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