Founded by Ed Siegfried Sr. in January, 1975, EF Siegfried, LLC has grown from a modest operation with just three product lines to a well-established HVAC manufacturers' representative with over 20 premier product lines. For 50 years, our commitment has been the same: to support contractors with high-performance HVAC products, including grilles, registers and diffusers, louvers, fans, equipment screens, and ductwork.

We serve commercial and industrial clients with professionalism and integrity, offering a wide selection of HVAC products that meet rigorous engineering standards. Our success is built on hard work, dependable relationships, and superior customer service—always treating clients the way we would like to be treated.