Working 'Round the Clock

To Keep America Great

Making America Great through Heat Treating and Brazing

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.

Expanding Again!

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Latest News

No Surcharges! Surcharges Bad!

We don't have energy surcharges. Companies who do - SAD. 

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ThermoFusion Gives Back
General News

On behalf of our customers, large and small, we've chosen to celebrate this Holiday season with a donation to Children's Hospital in Oakland. Our children are our future, and their health is critical to the success of our businesses, and our Country. 

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Holiday Schedule
Company Events

ThermoFusion will be closed:

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ThermoFusion is Hiring!
General News

ThermoFusion is looking for a few good people who want to become heat treaters. We have a training program, good wages and benefits, and fun employees. Its hard work, but its rewarding. You'll learn first-hand that manufacturing is not dead in America!

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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

  • 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.

  • ThermoFusion has been the greatest company to work with. You have gone out of your way to help. I could not recommend you more highly. Thank you so much for being there for us. You are the best.

    Bonnie M, Quality Mgr

  • "We received the tanks yesterday and the brazing looks very good. Thank you so much for your help on these parts, and for getting them turned around so quickly.".

    John M, Mechanical Engineer

Covering a Variety of Industries

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