Cleanroom Capabilities

Longden Company, Inc.provides the following Cleanroom Capabilities:

Longden Company, Inc. has been on the forefront of this market as part of Design and Construction Teams, building Clean Rooms according to designed ISO Standards. Tate Access Floors is the definitive leader in the supplier of critical access flooring to provide the required laminar flow of each class. As a result of our efforts in the access floor market, we have risen as the preeminent installer of Cleanroom Walls and Ceilings. To this we have aligned ourselves with most of the major manufacturers to provide the best quality products available in the market.

• Aluminum Access Floor System for Cleanrooms
• Cleanroom Walls
• Cleanroom Ceilings
• Cleanroom Struts
• Gel Seal
• Tool fit out

Cleanroom Construction

In addition to traditional “stick-built” cleanrooms, Longden Company, Inc. can furnish and install prefabricated modular type cleanrooms. Prefabricated design combines functionality with flexibility to create systems that will meet your cleanroom needs of today and into the future. We have completed cleanroom installations with many of the major US manufacturers of modular cleanrooms throughout New England. Our highly experienced technicians ensure a successful installation, on time, and within budget.

Longden Company, Inc. also supplies and installs cleanroom components such as pass-thrus, air showers, lab benches, and fan powered filters. We represent many major cleanroom manufacturers, and are a one stop source for all of your cleanroom needs.

Along with furnishing a complete turnkey modular cleanroom, Longden Company, Inc. can provide installation only, for clients managing their project in-house.

Longden Company, Inc. also provides cleanroom modification services. Reconfiguration of cleanroom walls, ceilings, and doors is often necessary when relocating or installing new equipment. Our experienced cleanroom crews can often perform these modifications without compromising cleanroom cleanliness. This allows our customers to continue to use their cleanroom during modification.

Longden Company, Inc. has been on the forefront of cleanroom construction. With over 20 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.

Our experienced cleanroom construction crews along, with our veteran cleanroom project management team, assure that our clients projects will be completed on time, on budget. In addition, our strict adherence to “Build Clean Protocols” means that cleanroom certification is promptly achieved after construction is completed.

We have aligned ourselves with most of the major manufacturers of cleanroom components to provide a wide variety of the highest quality products available in the market. Along with quality, affordability, and reliable delivery are paramount when choosing our suppliers.

Longden can furnish and install:

Metal strut framing
Raised Access Flooring
Cleanroom walls, doors, and windows
Cleanroom ceiling grid
Pre-engineered freestanding cleanrooms
Cleanroom pass-thrus & air showers

Our cleanroom construction experience ranges in cleanliness classification from ISO 3 to ISO 8, in all segments ( bio, pharma, semiconductor) of the cleanroom market. The Longden Company has successfully completed projects ranging in size from small process isolators (6 square feet) to large semiconductor fabs (160,000 square feet).

Cleanroom Classifications

Federal Standard 209e	ISO Standard 1446	Biosafety Levels

Class 10 Class 100 Class 1,000 Class 10,000 Class 100,000	ISO 4 ISO 5 ISO 6 ISO 7 ISO 8	BSL1 BSL2 BSL3

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