Cost engine
How much does ductwork replacement cost in St. Petersburg, FL?
St. Petersburg pricing for ductwork replacement, adjusted for local labor and material costs, plus the permit fees you should budget.
Verified August 2026
Ductwork Replacement cost in St. Petersburg
$2,600 – $12,400
Most St. Petersburg homeowners pay around $5,600 for ductwork replacement, or $250–$600 per supply run. Budget another $95–$335 for permit fees.
Full cost breakdown
| Budget scope | $2,600 |
|---|---|
| Typical project | $5,600 |
| Premium / complex | $12,400 |
| per supply run | $250 – $600 |
| Permit fees | $95 – $335 |
| Local premium | +3% vs national |
| Timeline | 1-3 days of work, 1-3 weeks including permitting |
What makes the number move
- 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
How to pay less
- • Get three written bids — spread between local bids on this project is routinely 25% or more.
- • Schedule in the off-season; St. Petersburg contractors price peak demand higher.
- • Confirm the permit fee is itemized rather than marked up inside the labor line.
- • Verify the license at DBPR before paying a deposit; unlicensed work voids most claims.
Nearby city pricing
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.