Florida pricing

Air Duct Replacement Cost Calculator — Florida

Estimate duct replacement cost from your home's size, run count and how hard the attic or crawlspace is to work in. Every figure below is already adjusted for Florida labor and material pricing.

Verified August 2026

Does ductwork replacement cost cost more in Florida?

+4% versus the national baseline

One statewide code is enforced by 67 counties and 411 municipalities, and wind-borne debris, product approval and flood 50% rules change the scope of nearly every exterior project. Permit fees here run about 15% off the national average, and Owner-builder exemption available on an owner-occupied home under FS 489.103(7)

Conditioned area(sq ft)

Cost per square foot($)

Supply runs

Cost per run($)

Access

Permit fee($)

Estimated total cost

$7,379 – $10,480

Cost per square foot: $4
Cost per supply run: $838

Estimates only. Local pricing, site conditions and code requirements change the real number.

What changes the number in Florida

Local cost indexAbove the national baseline	1.04x national
Permit fee index	1.15x national
Code basisStatewide code applies	Florida Building Code, 8th Edition (2023)
Owner-builder posture	Owner-builder exemption available on an owner-occupied home under FS 489.103(7)
Largest markets	Miami, Tampa, Orlando, Jacksonville

The formula

Cost = (sq ft x rate) + (runs x per-run cost) x access multiplier + permit

Duct replacement is priced mostly by labor hours. Tight crawlspaces and low attics can add 30–50% over an open, walkable space.

Covered markets in Florida

City-level cost and permit pages with local building department links.

Miami, FL Fort Lauderdale, FL West Palm Beach, FL Tampa, FL St. Petersburg, FL Clearwater, FL Orlando, FL Kissimmee, FL Jacksonville, FL St. Augustine, FL Sarasota, FL Bradenton, FL

Frequently asked questions

How much does it cost to replace ductwork?

Whole-home duct replacement usually runs $3,500 to $12,000 in 2026, or roughly $2 to $4 per conditioned square foot.

Should I replace ducts with the HVAC system?

If ducts are over 20 years old, undersized or badly leaking, doing both at once saves labor and protects the new system's efficiency rating.

Sources

Sources & verification

Florida Building Commission

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.