Concerned about mold in the HVAC system? Address the problem quickly to avoid the spread of mold spores through the air vents ...

You should clean your air ducts every three to five years, but the specifics depend on your home. If you turn on the air conditioning unit to stay cool in the summer, or if you turn on the heat to ...

ventilation and air-conditioning systems (also known as HVAC), or architectural, industrial and service sheet metal work. HVAC workers fabricate and install fans and ducts or air handling units.