Is $3,700 to replace all ducts with insulated flex duct a fair price?
Project Details
I'm in humid central North Carolina and bought this 1930s brick house about 25 years ago. The dirt floor crawlspace used to flood frequently, and I wish I had addressed it earlier, but I got it sealed and encapsulated 3 years ago. The encapsulation, along with an Alorair dehumidifier, sump pump, and outside drainage work, has made a huge difference in keeping the space pretty dry. However, a couple of rooms in my 950 sq ft house aren't getting great A/C and heat airflow, so I am looking again at duct improvement. I can afford to spend where it's wise to do so, but I like to DIY when it makes sense. I could see this being a bit exhausting, especially in the sections of the crawlspace that are lower to the ground (kneeling height).
Quote Details
This quote, from 2022, is for replacing all existing ducts with insulated flex ducts. This option was originally part of a crawlspace encapsulation project but was skipped at the time.
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More Details
Category
HVAC
Price
$3,700
Quote Date
August 21, 2025
Location
North Carolina
Home Size
950 sq ft
Year Built
1930
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