Making American Heat Treating

Great Again!

We're Hiring, See us on Indeed!

ThermoFusion Inc., Specialists in Brazing and Heat Treating, has been solving customers' metallurgical problems since 1968. Our services consist of Heat Treating, Aluminum, Brazing/Joining, and Secondary Operations. We pride ourselves in the quality of our work and are the only specialists in California who provide Heat Treating and Brazing services. ThermoFusion is committed to customer satisfaction through excellence in heat treating and brazing services. ThermoFusion and its employees take pride in the quality of their work and are dedicated to improving.

ThermoFusion is Hiring!

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Latest News

2017 Thanksgiving and Christmas Schedule

ThermoFusion will be closed on the following days:

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Austempering and Marquenching Capability Added
General News

For Immediate Release …

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Annual Company Awards Party
Company Events

We had our 6th annual "Thermy" Company Awards party. Not only are we really good heat treaters and brazers, but we also know how to have fun and eat well! 

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Yearly Quality Statement

Its time again to repeat our yearly quality statement: 

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We Specialize in all Material Solutions

Heat Treating

Heat Treating includes all the various metalworking processes which are used to change the properties of a material to make it useful.

Brazing & Joining

Brazing is a metal-joining process where two or more materials are joined together by a third, dissimilar material to bond them together.


Aluminum is one of the most abundant elements on Earth, but it needs to be heat treated to be useful to machinists and consumers.

Secondary Operations

Secondary Operations are all those steps beyond just heat treating and brazing that add value to our customers and their parts.

Get to Know Us

  • "... thanks for the efforts and the update!"

    Jeff B, Supplier Business Mgr

  • "We would like to express our sincere appreciation for your service to us as one of our dearest regular suppliers. Over the years, you have provided the best service/product with even better customer service. Deliveries are often received earlier than expected, and you are quick to resolve any issues that arise. 

    Craig K, Purchasing

  • In summary, your competitor came in over twice as high as you on the three items I had quoted. I will pass this report onto ***.

    Sterling D, Supply Chain

  • Overall one of the best companies we have worked with and have really saved us in expedite situations. Professional and prompt service from an extremely knowledgeable staff.

    Jason T, Program Mgr

  • You have all been fantastic to work with and have helped me get out of some tight delivery situations. Again Thank you!!!!

    Jean M., Customer Sv.

Covering a Variety of Industries

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