For more than a century, R.F. Knox Company has balanced largescale capability with hands-on craftsmanship. We complete thousands of projects each year, most focused on commercial HVAC ductwork fabrication and installation, while our Architectural & Specialty Department carries on our 1914 tradition of custom metalwork. From handrails and signage to weathervanes, elevator doors, and wall accents, we create distinctive pieces in bronze, brass, copper, and mirrored stainless steel – built with the same make-install-repair mindset that started it all.

People First, Expertise Always

Our people are the backbone of R.F. Knox. Every craftsman completes a rigorous four-year training program that blends technical skills, efficiency, and safety with our company values of Integrity, Reliability, Service, and Quality. Many of our team members also hold advanced degrees and certifications in Drafting & Design, Welding Inspection, Mechanical Engineering, Safety & OSHA Training, and more – ensuring every project is completed with unmatched expertise.

Setting the Standard in Quality & Safety

At R.F. Knox, quality isn’t just a promise – it’s built into everything we do. From HVAC ductwork to architectural accents, our strict quality-control procedures ensure durability, cleanliness, and performance. In fact, our duct fabrication, storage, installation, and maintenance processes are designed to reduce airborne contaminants and improve air quality for our clients – at no extra cost.

Innovation Backed by Tradition

We combine over a century of experience with cutting-edge technology to deliver solutions that stand the test of time. Whether it’s a custom HVAC system, industrial fabrication, or architectural metal feature, our clients know they’re working with a partner who values excellence in every detail.