The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) has published the fourth edition of its HVAC Duct Systems Inspection Guide.

I’ve been an advocate for HVAC contractors, whether sheet metal or piping contractors, to stop and assess the opportunities that they could have if they put together a business plan focused on ...

These tradespeople may specialize in heating, ventilation and air-conditioning systems (also known as HVAC), or architectural, industrial and service sheet metal work. HVAC workers fabricate and ...