You’ll need a professional to locate the disconnected duct and seal it so that no air escapes.

Sometimes, other things may cause blockage by covering the vent on the wall (for example, an animal breaks the pipe and builds a nest or dies, your child's stuffed toy, someone hides something in the floor pipe, etc.). Blocking ventilation openings in furniture is also a common problem.

Remove items that cause blockage or rearrange furniture to ensure that your vent cover is intact for optimal airflow.

What's a metal duct?

Metal ducts (also called rigid or hard ducts) offer a more permanent solution to a commercial HVAC system. Galvanized steel and aluminum ductwork last longer. This is especially true when proper maintenance occurs on a regular schedule.

It requires computerized design, measurements, and careful ductwork installation. Experts consider the existing components of the commercial building's heating and cooling system. These considerations include the furnace, heat pump, air conditioner, and more.

The width-to-height ratio in a commercial building is also a consideration. It should provide space for metal ducts to optimize energy efficiency and performance.