Langdon Sheet Metal


​​​​​​​As a fabricator since 1966, Langdon has built a reputationh of knowledge and integrity within the HVAC industry.  Langdon staffs a professional 50,000 square foot sheet metal shop, having the capacity of 1/4" plate up to 26 gauge metal.


Sure Clamp™ Access
Quick Facts

• Removable ductwork section
• Fire damper access
• Smoke damper access
• Nearly an airtight seal
• Provides unobstructed access
• Safe, thorough inspections
• Quick, efficient maintenance
• Complies with
    A. ICC (2021) 607.4.1
    B.  NFPA 80 (2013) 19.2.3



50th Anniversary
image-928610-Langdon_award-8f14e.jpg
Langdon, Inc.

Sure Clamp is the safest and easiest way to inspect and maintain fire and smoke dampers. Our unique clamping system is made with exceptional materials and installed using the highest industry standards.  Sure Clamp™ Access is a sure way for you to fullfill the International Code Council (2021) 607.4.1 and the National Fire Protection Agencies 80 (2013) 19.2.3 requirements for removable ductwork sections.
​​​​​​​


Brochures: