Services HLI Offers

At H. Lamm Industries, Inc., we're a HVAC mechanical contractor that is able to design, project manage, fabricate and install HVAC duct systems for heating, ventilation and air conditioning. HVAC duct systems are the heart of any building providing a controlled path for air flow throughout the structure, delivering fresh and conditioned air, and removing stale air from our living and work environments.

HVAC ductwork includes pipe or closed conduits made of sheet metal, fiberglass board, or other suitable material for conducting air to and from an air handling unit.

Most of our sheet metal work includes fabricating duct and fittings from galvanized steel, aluminum, stainless steel, black iron, and paint grip sheets in various thicknesses and sizes from rectangular to spiral. All ductwork is built according to SMACNA (Sheet Metal and Air Conditioning Contractors National Association, Inc.) standards and guidelines. When specified, we also fabricate lined and double-wall ductwork with perforated inner-shell metal and Mylar insulation. This helps to damper the sound of the air flow traveling through the ductwork.