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Longden Company has long been recognized as a leading cleanroom contractor here in New England and across the country, for both turnkey design/build and build-to-specification cleanrooms. We understand cleanroom construction and clean-build protocol, and we’re dedicated to providing contamination-controlled environments.
Since 1988, Longden has constructed cleanrooms ranging from Class 1 (ISO 3) to Class 100,000 (ISO 8) and varying in size from mini-environments to world-class semiconductor mega-fab installations in all segments (biomedical, pharmaceutical, semiconductor, manufacturing) of the cleanroom market. We have successfully completed projects ranging in size from small process isolators (6 square feet) to large semiconductor fabs (160,000 square feet).
Our experienced construction crews, along with our veteran project management team, assure that our clients’ projects are completed on time and on budget. Our versatility and breadth of experience are unmatched, and we approach each project with a comprehensive understanding of the demanding requirements of the specialty products, their need for exact installation, and the concerns of special cleanroom protocols.
Longden Company has long been on the forefront of cleanroom construction. With over 30 years of cleanroom construction experience, Longden has successfully completed projects throughout the United States and Canada. We have a solid base of repeat clients, broad industry references and a strong safety record.
Longden Company offers a wide range of cleanroom services and capabilities, including furnishing, installation, modification, reconfiguration and more. Our highly experienced cleanroom professionals ensure a successful project—on time and within budget.
Longden offers multiple types of modular cleanrooms—softwall, vertical flow hardwall, and Plascore (for pharmaceutical and biotechnology applications). We have completed cleanroom installations with many of the major US manufacturers of modular cleanrooms throughout New England.