chippyo

Is $9,000 to replace all flex duct in a crawlspace a fair price?

Project Details

I have a 1980s ranch style home. The ducts were apparently updated in early 2010. Recently, I've had a mouse problem, and the HVAC guy observed chew marks from mice, suggesting they've chewed through the ducts. He also noted system failure from failed duct support, rust and deterioration at the duct boots, with some pulling away from the subfloor. I'm trying to give him the benefit of the doubt as he seems like a good guy, and I saw him do my neighbor's HVAC replacement. However, this quote seems high, and I need to get more quotes. I was debating on sheet metal ducts because I heard they were more durable, but after seeing this quote, I scrapped that thought. I don't want to diminish the work involved, especially in a crawl space, but I needed a gut check on the price.

Quote Details

This quote is for a full replacement of the ductwork located beneath the home, specifically addressing issues caused by rodent damage and general deterioration. The work includes: - Removal and disposal of all existing flex duct beneath the home, including all trunk and branch lines. - Installation of all new flex duct, properly strapped and supported, to meet current code and airflow requirements. - Sealing and insulating all duct connections to minimize air leakage and condensation. - Replacement of all damaged and rusted duct boots. - Reinsulation and resealing of the existing metal plenum, provided it is in suitable condition (this is the only portion of the ductwork that may remain). - Ensuring all new ductwork is fully suspended off the ground, properly routed, and free of kinks or restrictions.

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More Details

Category

HVAC

Price

$9,000

Quote Date

October 2, 2025

Home Size

1,200 sq ft

Year Built

1980

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