Vermont · HVAC
Ductwork Replacement cost in Vermont
Statewide pricing, permit posture and inspection sequence for ductwork replacement in Vermont. Your city or county issues the actual permit — use the local links below to confirm fees.
Verified August 2026
Ductwork Replacement cost in Vermont
$2,700 – $13,000
Most Vermont homeowners pay around $5,800, or $250–$650 per supply run. Permit fees typically add $75–$270.
Permit: Yes. Code adoption is local — residential building energy standards statewide; structural code adoption is local.
Cost breakdown
| Budget scope | $2,700 |
|---|---|
| Typical project | $5,800 |
| Premium / complex | $13,000 |
| per supply run | $250 – $650 |
| Permit fees | $75 – $270 |
| vs national baseline | +8% |
| Timeline | 1-3 days of work, 1-3 weeks including permitting |
What is different about ductwork replacement in Vermont
There is no statewide residential structural code, but the Residential Building Energy Standards certificate is required for most new construction and major renovation.
Owner-builder: Owner-builder permits common. Ductwork Replacement generally requires a licensed contractor to pull the permit, even where owner-builder status is available.
Inspections
- Duct rough-in
- Duct leakage test
- Final mechanical inspection
What drives the price
- Number of supply and return runs
- Flex duct versus rigid sheet metal
- Attic access and clearance
- Return air sizing corrections
- Removal of contaminated duct board
Frequently asked questions
Does duct replacement need a permit in Florida?
Yes. Replacing a duct system requires a mechanical permit and a duct leakage test in most Florida jurisdictions, because duct leakage is regulated under the energy code.
Sources
Sources & verification
Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.