We have been having problems with our air conditioner keeping our house cool so had someone come out to check it out. Found out the majority of our duct work has collapsed and deteriorated. Getting bids now to have them all replaced. Of course every contractor wants to include a new HVAC unit as ours is 14 years old. I really dont want to spend that extra money right now. I know we will have to replace it eventually but why spend that kind of money when nothing is wrong with the one we have now. I know the energy difference would be great, but still with kids driving and in college money spent better elsewhere right now. We would like to see first what kind of difference in keeping the house cool with the duct repair. Does anyone have any recommendations or opinions on this?