S & H Engineering

Since 1980, S & H Engineering has been dedicated to delivering precision-driven machining, fabrication, and inspection services that transform conceptual designs into high-quality prototypes. Our 20,000 sq. ft. facility in Chelmsford, MA, combines cutting-edge technology with decades of hands-on expertise to meet exacting specifications across aerospace, defense, and industrial sectors. We maintain ITAR registration and security clearances to handle sensitive projects, ensuring compliance and confidentiality. Our customer-centric approach prioritizes collaborative design support, rapid prototyping, and end-to-end manufacturing solutions tailored to individual client needs. With advanced CNC machining, sheet metal fabrication, and assembly capabilities, we provide seamless integration of complex components while adhering to rigorous quality control standards.

Our engineering team offers specialized assistance in new product development, regulatory compliance, and precision automation for businesses lacking in-house expertise. Through continuous investment in technology and workforce development, we adapt to evolving market demands while upholding our founding commitment to customer satisfaction. Our ESD-safe assembly and testing environment ensures secure handling of sensitive electronic components, and our inspection division guarantees dimensional accuracy for both in-house and third-party manufactured parts. By bridging traditional manufacturing methods with modern innovation, we enable clients to accelerate product development cycles and bring market-ready solutions to fruition efficiently.