
Pentz Cast Solutions Aluminum Casting Foundry
As a provider of exceptional, precision aluminum sand castings, Pentz Cast Solutions is located in Duvall, Washington, serving a wide range of customers and industries with high-quality castings. Since 1972, Larry Pentz and his team have been committed to pursuing challenging casting requirements, driving innovation to deliver some of the best as-cast solutions on the market, meeting or exceeding industry standards. Combining customer input with our team’s mechanical engineering, CAD CAM tooling designs, outstanding quality, and CNC machining expertise, we are a proven partner for several industries requiring precision castings.
Who Are We?
With over 50 years of experience, Pentz Cast Solutions is an aluminum sand-casting foundry that prioritizes innovative solutions to deliver high-quality aluminum castings. We offer capabilities for prototyping and large-scale production with custom tooling, meeting tight tolerances with high repeatability through a range of in-house sand casting techniques, all completed by skilled Pentz machinists and tested to our trademark as-cast finishes.
For examples of our work, explore past projects in the portfolio.
What Industries Do We Serve?
Pentz Cast Solutions has experience working with OEMs and other entities to create complex, mission-critical components for virtually every industry. As a leader in casting innovation since 1972, we utilize a collaborative approach, advanced CAD software, state-of-the-art CNC machining, and a suite of in-house engineering and manufacturing capabilities to deliver components in high volume to meet your specific requirements for various applications.
What Materials Do We Specialize In?
We work with a variety of materials in our aluminum casting foundry and can provide additional heat treating to meet your material requirements. Our most popular selection includes the following aluminum grades:
- 535 AlMag
- A356 Alloy
- 357 Alloy
- 206 Alloy
- Alcoa 351 SuperaCast
- Alcoa A354 VersaCast

Why Partner with Pentz Cast Solutions for Aluminum Casting?
Our extensive engineering and manufacturing services allow us to manage the entire casting prototyping process, from CAD to testing. By the time the casting reaches the CNC machining phase, we are already familiar with its stability and can inspect for quality at every stage, ensuring your casting is made to exact specifications and standards.
We utilize dual-path and triple-path processes to “hog out” aluminum prototypes and casting simultaneously for high-volume, low-cost production. Building cast parts and CNC machining can and often are accomplished simultaneously, allowing us to drastically shorten delivery times for prototypes and high-production parts. Each of our prototype castings is finished, checked, proven, and approved prior to production.
Contact Us to Discuss Your Aluminum Casting Project Today
For decades, Pentz Cast Solutions has been an innovative leader in aluminum casting production. Our facility can handle every step of your casting project, working with you through in-house engineering, tooling, and prototyping to ensure your high-quality casting meets requirements before production. From identifying the best casting process for your part to reverse-engineering and optimized design guidance, we deliver precision aluminum castings with exceptional results to meet or exceed your expectations. Contact Pentz Cast to discuss your project requirements or request a quote to get started.

