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Question DetailsAsked on 7/26/2017

how much does it cost to replace duct work for 1475 2 story house

3 returns, 5 vents down stairs, 5 vents upstairs

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2 Answers


Hello Os8199ovs,

Thank you for reaching out. We are happy to help! If you have not done so already, please go to to set up a membership. Once completed you will have access to highly rated service providers in your area. By searching the ”Heating and AC” category, you will find top rated providers that can fit your needs.


Iann M


Answered 3 years ago by Member Services


Here are some links to previous similar questions with answers which should help.

You did not say WHY you want to replace them - unless proven undersized AND a larger blower motor cannot solve that, or deteriorating plastic duct, it may be a spray liner/sealer job might handle the issue if leakage is the problem, or perhaps a zone control valve if balance between different zones is the issue.

Heating and A/C is of course the Search the List category to find well-rated and reviewed vendors to bid this job.

And unless all was working well and you are just replacing because of serious deterioration, be sure they run the ACCA Manual S calculations (which determine duct sizing and register/return needs) to be sure you are putting in proper ducting sizes and branching and control dampers and such.

Note you also did not say anything about ANY returns upstairs - that would make for a badly misbalanced system, and a badly malfunctional one if the upstairs and downastairs are separate zones.

Answered 3 years ago by LCD

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