Commercial HVAC Fabrication & Installation Excellence

At R.F. Knox Company, Inc., we’re proud to be recognized as an industry leader in commercial HVAC ductwork fabrication and installation. For more than 110 years, businesses across Atlanta and the Southeast have trusted us to deliver high-quality, reliable, and innovative HVAC solutions that stand the test of time.

Our team of expert craftsmen designs, fabricates, and installs custom ductwork, fittings, and complete HVAC systems – always with precision, safety, and efficiency at the forefront. Whether it’s a large-scale commercial project, a specialty industrial system, or a unique architectural design, R.F. Knox ensures your HVAC project is built to perform.

Why Choose R.F. Knox for Your HVAC Project?

• Proven Expertise – Over a century of sheet metal and HVAC innovation.
• Custom Solutions – Ductwork and fittings tailored to your project needs.
• Trusted Partner – On projects across healthcare, education, commercial, and industrial sectors.
• Commitment to Quality – Every project reflects our values: Safety, Integrity, Quality, Accountability, and Reliability.

Award-Winning Craftsmanship & Safety

• SMACNA – Contractor of the Year (2022)
• Cobb Chamber of Commerce (2010)
•  Top 25 Small Business of the Year (2010)
• Yates Insurance & Amerisure – Safety Commitment Award (2013–2018)
• Baxter Lab – Safety Award (2014)
• Holder Mustang NBY Program – Subcontractor of the Month (Feb 2022)
• Mustang WCK Program – Subcontractor of the Month (Sept 2018, Mar 2019)

Awards

• SMACNA – 2022 Contractor of the Year
• Cobb Chamber of Commerce – 2010
• Top 25 Small Business of the Year (2010)
• Yates Insurance & Amerisure – Safety Commitment award 2013-2018
• Baxter Lab – Safety Award (2014)
• Mustang WCK Program – Subcontractor of the month (March 2019)
• Holder Mustang NBY Program – Subcontractor of the Month NBY2A (February 2022)
• Mustang WCK Program – Subcontractor of the month (September 2018)