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Question DetailsAsked on 12/31/2017

How much does it cost to Repair Duct Work in a Single Story Home

The Duct Work in my home had been smashed/damaged during the initial renovation of the house.

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1 Answer


Here are some prior similar questions with answers which might help - of course what type of ducts you have, whether the damage is accessible or in ceilings/walls that will have to be torn into and then repaired, total length of runs, etc all factor into the answer. Totally concealed sheet metal ducting with a number of places with damage might will run into the $3,000 - 5,000 to even 10,000 range in some cases - basement or crawlspace totally exposed flex duct (uggh) might be replaced for a thousand or so $. Underslab ducting, especially if of a size that cannot be sleeved or replaced in-place with polyester resin sewer lining, can run the toital price well over $10,000 in some places - though in those cases running an exterior insulated plenum or soffit to contain ducting is a viable solution in many cases. And of course, though it takes a LOT of insulation to avoid making it an energy $ sink, attic runs are a viable alternative in many cases, to avoid a lot of tearing into walls and ceilings.

If totally exposed, not at all hard to DIY using a utility knife and diagonal cutters to cut the bad parts out. There are splice (coupling) sleeves available for about $15-25 each (including the pair of band clamps to clamp the duct around the splice sleeve), and flex duct sizes commonly used in residences run in the ballpark of about $0.50/LF for 4", $1/LF for 6", and around $2/LF for 12" - actual purchase price from box store, not what a contractor would charge you for it.

Answered 2 years ago by LCD

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