The duct work had been completed in the attics.

Eventually, he developed a program to produce labels for each piece of duct work produced at the plant.

He followed her through the duct work and up the ladder to the second level.

This could be let into the wall, which would mean taking up valuable wall space and also involve duct work.

The duct work often develops air leaks around seams and joints.

The kind of work they were doing didn't sound at all like duct work.

Steam cleaning and other methods involving moisture should not be used on any kind of duct work.

Demonstrate visible evidence of microbial growth in your duct work.

Included in the design was a modern forced air cooling system with centralised duct work.

The interior systems including duct work and dismantling cranes were under construction.