Ductwork Replacement cost in Miami, FL
Miami, FL · updated August 2026
$6,900
Typical local cost
$3,200 – $15,400
Typical range
- per supply run
- $300 – $750
- Permit
- Yes
- Typical timeline
- 1-3 days of work
Installed, local pricing
$120 – $430 in fees
1-3 days of work, 1-3 weeks including permitting
Miami runs +28% against the U.S. average · data confidence Medium · modeled estimate, not a quote
The modeled midpoint for Miami is $6,900. The local adjustment for this trade is x1.283 — driven mainly by Miami-Dade County labor rates and 55% exposure to local code requirements.
Estimate your Miami job
Priced with this market's cost index, so the calculator, the size table and the ranges on this page all agree.
Recommended size
5 tons
Round to the nearest half ton
- Cooling load
- 61,000 BTU/hr
- Typical equipment costInstalled, 14-17 SEER2
- $10,906 – $20,528
- Rule-of-thumb check
- 400 sq ft per ton
Priced for Miami (local adjustment x1.283).
Estimates only. Local pricing, site conditions and code requirements change the real number.
Cost by project size
Generated from the same unit pricing the calculator uses.
| Project size | Estimated range |
|---|---|
| 8 supply run | $2,400 – $6,000 |
| 10 supply run | $3,000 – $7,500 |
| 13 supply run | $3,900 – $9,800 |
| 17 supply run | $5,100 – $12,800 |
| 22 supply run | $6,600 – $16,500 |
Based on Miami pricing of $300–$750 per supply run.
Where the money goes
- Labor
- $3,100
- 43% of median
- Materials
- $3,800
- 53% of median
- Permit & fees
- $275
- 4% of median
Miami project costs+28% vs U.S. average
Based on Miami-Dade County labor rates, local material logistics and permit-fee posture for this trade.
What the project looks like start to finish
Typical sequence for this scope. Timing varies with contractor backlog and plan-review queues.
01
Planning & quotes
Scope, material choice, contractor selection
02
Permit application
Filed with City of Miami Building Department
03
Materials & staging
Order lead time on non-stock materials
04
Installation
1-3 days of work, 1-3 weeks including permitting
05
Inspection
Duct rough-in, Duct leakage test, Final mechanical inspection
06
Closeout
Final sign-off, warranty and documentation
Miami labor intelligence
What the trade charges here, and how much of your price it is.
Loaded hourly rate
$103–$134
HVAC crews in Miami-Dade County · +23% vs U.S. ($95/hr)
Typical crew
2 × 1.5 days
On-site time for a typical ductwork job here.
Labor in the price
$3,100
45% of the median — the rest is material, disposal and permit.
Because labor is 45% of this job, Miami wage levels move the price far more than material prices do. A quote well under this labor figure usually means a smaller crew, a longer schedule, or unlicensed help.
Basis: Hometriva labor model: national hvac crew rates adjusted by the Miami-Dade County labor factor (x1.234). · BLS Occupational Employment and Wage Statistics, Hometriva methodology
Why Miami differs from the national average
The local delta, broken into dollars by driver.
Trade labor rates+$575
Miami-Dade County crews price 23% above the national average, and labor is 45% of this job.
Code and inspection load+$475
Ductwork Replacement carries 55% exposure to local code requirements, and this jurisdiction's review load indexes at x1.16.
Material and delivery+$400
Materials are nationally traded, so they move less — but delivery into this market runs 13% over baseline because of coastal logistics.
Permit fees+$75
Fees are paid to the jurisdiction, not the contractor, and are budgeted separately from the contract price.
Basis: Decomposition of the modeled Miami median against the U.S. median for this scope. · City of Miami Building Department, Hometriva methodology
Miami vs Florida vs the U.S.
Change the inputs, see your number
The same local model, run against your job instead of the average one.
Simulated ductwork replacement in Miami
$7,175
Likely range $3,475 – $15,675
Simulated from the same local model as the numbers above — it changes the inputs, not the pricing method.
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
Who issues each permit
Tracked per discipline — the building permit issuer is not always the body that reviews electrical, plumbing, zoning or fire.
| Discipline | Issuing authority |
|---|---|
| building | City of Miami Building DepartmentConfirmed department |
| electrical | City of Miami Building DepartmentConfirmed department |
| mechanical | City of Miami Building DepartmentConfirmed department |
| plumbing | City of Miami Building DepartmentConfirmed department |
| zoning | City of Miami Building DepartmentConfirmed department |
| fire | City of Miami Building DepartmentConfirmed department |
Permit requirement in Miami
Yes — a permit is required for ductwork replacement in Miami, FL. The work must be inspected before it can be closed out, and a licensed contractor generally has to pull the permit.
- Permitting authority
- City of Miami Building DepartmentConfirmed department
- Permit fee
- Based on declared project valuationMiami permit fees are calculated from declared job valuation on the city's adopted fee schedule. Typical range for this scope: $120–$430.
Inspections
- Duct rough-in
- Duct leakage test
- Final mechanical inspection
Local conditions that change this job
Only the exposures that materially affect ductwork replacement.
Cooling load / heat exposure
Severe92/100
Humidity
Severe90/100
Nearby market comparison
| Market | Local factor | Median | Per supply run |
|---|---|---|---|
| Miami (this page) | x1.283 | $6,900 | $300 – $750 |
| Fort Lauderdale | x1.234 | $6,700 | $300 – $750 |
| West Palm Beach | x1.198 | $6,500 | $300 – $700 |
| Naples | x1.318 | $7,100 | $350 – $800 |
What Miami homeowners actually paid
Homeowner-reported invoices for this market. Nothing is published until enough reports clear review, so this section is often empty in newer markets — adding yours takes 20 seconds and no personal details.
Quotes homeowners were given in Miami
Quotes run ahead of final invoices. Reporting yours shows the local spread and where there is room to negotiate.
How Hometriva estimates Miami ductwork costs
Hometriva does not publish invented city prices. The Miami estimate for ductwork replacement is produced by this chain, and every input is stored separately:
- National baseline$5,400
Typical U.S. cost for ductwork replacement on a single-family home.
- Local labor factorx1.234
Miami-area trade labor rates, weighted at 45% of this job.
- Material factorx1.134
Material and delivery pricing into Miami-Dade County, weighted at 55%.
- Regulatory factorx1.161
Local code, product-approval and inspection load, applied at 55% for this project type.
- Applied multiplierx1.283
Blended Miami adjustment specific to ductwork replacement.
- Permit component$120 – $430
Budgeted separately from the contract price because it is paid to the jurisdiction.
Because labor, material and regulatory factors are weighted per project, ductwork replacement in Miami carries a different local adjustment than other trades in the same market.
Reviewed by
Hometriva Cost Data Desk
Maintains the unit-cost baselines, local adjustment factors and material pricing. Reviewed for ductwork replacement pricing in Miami, FL.
- • National unit-cost baselines against current trade pricing
- • Local labor and materials factors for the market
- • Material installed-cost ranges and service life
Last reviewed August 2026 · Editorial standards · Report an error
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.
Do I need a permit for ductwork replacement in Miami, FL?
In most jurisdictions this work is permitted and inspected. Requirements are set locally, so confirm the current application and inspection checklist with your building department before work starts.
How long does ductwork replacement take?
1-3 days of work, 1-3 weeks including permitting. Permit review and inspection scheduling are usually the largest source of variation.
What changes the price the most?
The largest cost drivers are number of supply and return runs; flex duct versus rigid sheet metal; attic access and clearance.
Sources
Sources & verification
- City of Miami Building Department
- Miami permit portal
- Florida Building Commission
- BLS Occupational Employment and Wage Statistics
Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.