Is $8,000 to remediate mold and replace HVAC trunk line and flexible duct a fair price?
Project Details
My Florida home, built in 1984 and 1500 sq ft, appears to have original plenum and trunk line which look shoddy with dents, kinks, and questionable sealing. The flexible ductwork and AC unit are relatively new (about 3 years old). I found very high levels of airborne penicillium/aspergillius and am working on remediation. The mold source isn't definitive, but the plenum and trunk line are likely candidates. I've received varied estimates. One remediator suggested adding more returns to meet code, but my research indicates my current single return is already to code. Estimate 2 seems high, and I plan to remove the UV lights and new returns from that quote. Cleaning the AC unit is important to me, so I'm leaning towards Estimate 2 if I can reduce the cost, as another provider wasn't experienced in cleaning the unit. I'm questioning if the HVAC situation is as bad as suggested and if correcting it will solve my mold problem. I'd like to understand the severity of my current setup. I haven't inspected it myself due to respiratory issues and mold/allergy sensitivity; an inspector called it 'duct board'. I need to confirm if the placement will be insulated.
Quote Details
This estimate includes: - Mold remediation of one small wall section - Replacement of trunk line - Replacement of flexible duct
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More Details
Category
HVAC
Price
$8,000
Quote Date
November 13, 2025
Location
Florida
Home Size
1,500 sq ft
Year Built
1984
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