Welcome to Thomas B. Mansfield & TM Service!

Thomas B. Mansfield, Co.
Home
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AFTERMARKET
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Go Green
Thomas B. Mansfield, Co.
Home
Sales
Service
Parts
AFTERMARKET
About Us
Location
Rentals
Events
Careers
Go Green
More
  • Home
  • Sales
  • Service
  • Parts
  • AFTERMARKET
  • About Us
  • Location
  • Rentals
  • Events
  • Careers
  • Go Green
  • Home
  • Sales
  • Service
  • Parts
  • AFTERMARKET
  • About Us
  • Location
  • Rentals
  • Events
  • Careers
  • Go Green

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

     2020 Fiscal Year 

    Highest % in 

    Engineered Boiler Systems

    Fulton

    Cleaver Brooks

    Cleaver Brooks

     Sales Achievement Award 

    Partnership Award

    2020 Sales Award

    Cleaver Brooks

    Cleaver Brooks

    Cleaver Brooks

    2020 Fiscal Year

    Five-Million Dollar Club

    11 Total Awards

    Including "Total Sales" 

    Cleaver Brooks

    Cleaver Brooks

    Cleaver Brooks

     2020 Fiscal Year 

    Highest Sales % in 

    Exhaust Solutions

    Cleaver Brooks

    Cleaver Brooks

    Cleaver Brooks

     2020 Fiscal Year

    Product Integration Award 

    Connect With Us On Social Media

    • Home
    • Sales
    • Service
    • Parts
    • AFTERMARKET
    • About Us
    • Location
    • Rentals
    • Events
    • Careers
    • Go Green

    TM Service, Co.

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

    (303) 781-7878

    Copyright © 2023 Thomas B Mansfield Co. - All Rights Reserved.

    Office Hours M-F 7-4:30 / Service Open 24/7

    Mobile Boiler Trailer Rentals

    Are you interested in our rentals?

    TMS rental fleet is ready to keep your site up and operational!

    Check Out Our Fleet