Spokane Engineering


Andy Johnston PE

Spokane Engineer

Andy Johnston, P.E. is the principal mechanical engineer of Johnston Engineering. He is a licensed Professional Engineer in Washington with over 15 years of product development and mechanical engineering design and analysis expertise

He has designed products for a wide range of industries including biotechnology, energy storage, renewable energy, consumer products, military and aerospace electronics cooling, nuclear, sports equipment and food handling equipment. 

He offers mechanical design services combined with engineering analysis to ensure products are strong enough and work the first time without time consuming and expensive prototype iterations. Andy is a subject matter expert in the analysis, design, and test of single and two-phase thermal management systems including, cold plates, heat exchangers, fluid conveyance and HVAC.

He holds a BS in Mechanical Engineering from Gonzaga University and a Washington State Professional Engineer license and is an Adjunct Instructor of Mechanical Engineering at Gonzaga University

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The Product Development Cycle And Our Value Proposition

Minimizing prototype iterations save time and money.  Using analytical simulation software ensures the best, fastest and cheapest product development cycles.

  • We are the only regional product development company offering integrated design & mechanical analysis. We simulate how a product performs before it is ever manufactured.  This means products: 
    • Work the first time
    • Are developed faster
    • Are developed for a lower cost
  • We offer aerospace-quality design and analysis services 
  • We are price competitive and match the market price on component design services

 Simply put: We offer the best services at a competitive price

Learn more about how we can help you. Our president was interviewed on Spokane Business Talks.

Google Reviews

Clinton Hermance
Clinton Hermance
15:37 28 Jun 18
Andy did a excellent job stepping me through the process from start to finish. He was in constant contact and I would highly recommend him for your next project.
Chris Wood
Chris Wood
21:37 20 Jan 18
Andy Johnston is great with people. His firm, Johnston Engineering, has a variety of services he provides, that are all delivered with speed and precision. But it’s his ‘people skills’ that allow him to stand out above the rest. His ability to connect with his clients and colleagues is a rare trait. I highly recommend Andy and his firm. Chris Wood, Wood Insurance Network Group
Charles Wells
Charles Wells
17:37 19 Jan 18
Johnston Engineering is one of the regions best engineering firms. Andy, their Principal Engineer, has with a wide berth of experience and knowledge that can help an entrepreneur design and develop a new prototype or a large manufacturing company improve an existing product or a component of their operations.
Victor Orellana
Victor Orellana
17:28 19 Jan 18
We're fortunate to have a firm that can confidently handle engineering design and analysis locally here in Spokane. I highly recommend this firm.
Max Johnston
Max Johnston
13:52 18 Sep 17
MR Wholesale hired Johnston Engineering to resolve a technical problem in our manufacturing process. They responded quickly (time is money in manufacturing) with an approach that totally solved the problem to our satisfaction and to tbe satisfactipn of the code officials
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