Ductwork is a pain & not necessary anymore! Most people have homes with air duct because they own a central Heating plus A/C system, the point of central Heating plus A/C is making the whole home 1 temperature, then every room in the home gets heating & air because the air duct stretches in the walls of the home. The air vent then releases the air in each room, then in theory, air duct sounds great. Every room is cooled & heated the same quite easily. The problem is that air duct is just not that good. The air ducts are quite delicate. The seams frequently get tears in them & a crack can form within the air ducts too. If there is even a small hole, the weekly bills go up! While the Heating plus A/C works, the air goes right outside through the hole. The Heating plus A/C continues to keep toiling in order to achieve the temperature on the control unit. It never can since most of the air is leaving the home. The Heating plus A/C will eventually burn itself out & either need a sizable Heating plus A/C repair or just turn off. The home won’t be the right temperature & the bills will be higherâ€¦ Finding the hole is not simple either. It can be as small as a pea & easily mess up the home. The Heating plus A/C professional can’t easily see the air ducts either. For air duct sealing, she blows air through the air vent with sealant particles. It is a lot of guesswork on something entirely major. Why go with air duct & central Heating plus A/C then? There are ductless chances out there that take away these concerns.