An Expert Eye
At Therma, we bring together teams of welders, CNC operators, designers, and project managers, resulting in unparalleled quality that sets our projects apart. By collaborating with each other, and working with you the customer, we can create pieces that combine form, function and aesthetics.

Sheet Metal
Our 90,000-square-foot sheet metal shop is home to some of the most advanced fabrication technology in the region. Our team collaborates with you to develop specifications for sheet metal projects, then takes those designs and makes them a reality. From delicate design to demanding industrial use, our team will take on your ideas.
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Specialty
Requiring a creative vision combined with extreme specifications, specialty fabrication can only be tackle by shops with the highest capabilities and levels of expertise. From close-tolerance machining to complex pieces, our precision machinery and highly-trained staff combine to meet your highest standards.
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Process Piping
High-purity process piping is integral to the performance of cleanroom fabrication facilities, facilities that are at the heart of Silicon Valley’s chip manufacturers and biopharmaceutical companies. With our own on-site cleanroom, we can fabricate process systems for dealing with chemical and solvent distribution, specialty gas process, and RO/DI water systems. With our familiarity working with a variety of materials, we create process systems that fit the specs you demand.
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Plumbing Fabrication
In our 22,000-square-foot plumbing fabrication shop, we produce entire batteries of plumbing fixtures. By fabricating to the specification requirements in-house, we provide higher quality control while simultaneously saving money. The ability to pre-fabricate units at our shop can reduce our time on the construction site, allowing other tasks to move ahead and keeping your project on schedule.
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Pipe & Weld Shop
Grooving, threading, cutting to length, putting together full piping assemblies – our 25,000-square-foot pipe fabrication shop and accompanying 10,000-square-foot pipe bend shop create intricate networks to meet the highest project demands. Equipped with the most modern equipment, our shop can tackle piping from small-diameter residential and commercial pieces up through massive industrial-sized pipes that move volumes.
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Architectural
Customize your project with architectural installations, custom-made in our fabrication shop. Louvers, dormers, gutters, and down spouts, and exterior skin systems are just some of the features we can design and produce in-house at our fabrication shop. The ability to create something that no-one else has allows us to give your project character and flair, matching your own.
CONNECTThe ability to fabricate what we need allows us to create one-of-a-kind projects, and build things that other companies can’t.
UNMATCHABLE
Our fabrication shop is equipped with the latest in CNC benders, lathe and mill, and industrial and tube lasers for flat stock, round tube, and angle metal. By utilizing modern equipment, and educating our team members to the latest processes and products, we can ensure that the fabrication process is efficient and exact. Having such a variety of equipment allows us to work with mediums that fit the project’s needs, from pre-finished metals to black iron, copper to galvanized and stainless steels.
Get to Know UsWORKING TOGETHER
From our certified welders to our CNC operators, from our designers to our field installers, everyone comes together to provide input on our projects. Over five decades of company experience, as well as centuries of personal experience, mesh together to support customer-driven projects and ideas. With constant training on the latest machinery and the most modern processes, our team members are ready and able to tackle what the customer can think up.
Get to Know Us
Northern California
1601 Las Plumas Ave
San Jose, CA 95133
Alameda County
6602 Owens Dr.
Pleasanton, CA 94588
Los Angeles County
2390 Bateman Ave.
Irwindale, CA 91010
Orange County
26812 Vista Terrace
Lake Forest, CA 92630