Ductwork Replacement cost in Los Angeles, CA
Los Angeles, CA · updated August 2026
$7,600
Typical local cost
$3,500 – $16,900
Typical range
- per supply run
- $350 – $850
- Permit
- Yes
- Typical timeline
- 1-3 days of work
Installed, local pricing
$130 – $465 in fees
1-3 days of work, 1-3 weeks including permitting
Los Angeles runs +41% against the U.S. average · data confidence Medium · modeled estimate, not a quote
Most Los Angeles homeowners pay around $7,600. The local adjustment for this trade is x1.408 — driven mainly by Los Angeles County labor rates and 55% exposure to local code requirements.
Estimate your Los Angeles 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
- $11,135 – $20,960
- Rule-of-thumb check
- 400 sq ft per ton
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 | $2,800 – $6,800 |
| 10 supply run | $3,500 – $8,500 |
| 13 supply run | $4,600 – $11,100 |
| 17 supply run | $6,000 – $14,500 |
| 22 supply run | $7,700 – $18,700 |
Based on Los Angeles pricing of $350–$850 per supply run.
Where the money goes
- Labor
- $3,400
- 43% of median
- Materials
- $4,200
- 53% of median
- Permit & fees
- $300
- 4% of median
Los Angeles project costs+41% vs U.S. average
Based on Los Angeles 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 Los Angeles 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
Los Angeles labor intelligence
What the trade charges here, and how much of your price it is.
Loaded hourly rate
$118–$153
HVAC crews in Los Angeles County · +42% vs U.S. ($95/hr)
Typical crew
2 × 1.5 days
On-site time for a typical ductwork job here.
Labor in the price
$3,400
45% of the median — the rest is material, disposal and permit.
Because labor is 45% of this job, Los Angeles 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 Los Angeles County labor factor (x1.416). · BLS Occupational Employment and Wage Statistics, Hometriva methodology
Why Los Angeles differs from the national average
The local delta, broken into dollars by driver.
Trade labor rates+$1,000
Los Angeles County crews price 42% above the national average, and labor is 45% of this job.
Material and delivery+$600
Materials are nationally traded, so they move less — but delivery into this market runs 20% over baseline because of coastal logistics.
Code and inspection load+$450
Ductwork Replacement carries 55% exposure to local code requirements, and this jurisdiction's review load indexes at x1.15.
Permit fees+$100
Fees are paid to the jurisdiction, not the contractor, and are budgeted separately from the contract price.
Basis: Decomposition of the modeled Los Angeles median against the U.S. median for this scope. · City of Los Angeles building department, Hometriva methodology
Los Angeles vs California 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 Los Angeles
$7,900
Likely range $3,800 – $17,200
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 Los Angeles building departmentModeled estimate |
| electrical | City of Los Angeles building departmentModeled estimate |
| mechanical | City of Los Angeles building departmentModeled estimate |
| plumbing | City of Los Angeles building departmentModeled estimate |
| zoning | City of Los Angeles building departmentModeled estimate |
| fire | City of Los Angeles building departmentModeled estimate |
Permit requirement in Los Angeles
Yes — a permit is required for ductwork replacement in Los Angeles, CA. 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 Los Angeles building departmentModeled estimate
- Permit fee
- Estimated allowance $130–$465Modeled from comparable fee schedules — not an official quoted fee.
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
Moderate58/100
Humidity
Moderate56/100
LADBS plan check, seismic retrofit rules and wildfire-zone material requirements shape most exterior and structural projects inside city limits.
Nearby market comparison
| Market | Local factor | Median | Per supply run |
|---|---|---|---|
| Los Angeles (this page) | x1.408 | $7,600 | $350 – $850 |
| San Diego | x1.378 | $7,400 | $350 – $850 |
| Fresno | x1.129 | $6,100 | $300 – $700 |
| Sacramento | x1.258 | $6,800 | $300 – $750 |
What Los Angeles homeowners actually paid
Real reported invoices from this market, aggregated. Add yours — it takes 20 seconds and no personal details.
Quotes homeowners were given in Los Angeles
Quotes run ahead of final invoices. Reporting yours shows the local spread and where there is room to negotiate.
How Hometriva estimates Los Angeles ductwork costs
Hometriva does not publish invented city prices. The Los Angeles 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 factorx1.416
Los Angeles-area trade labor rates, weighted at 45% of this job.
- Material factorx1.204
Material and delivery pricing into Los Angeles County, weighted at 55%.
- Regulatory factorx1.152
Local code, product-approval and inspection load, applied at 55% for this project type.
- Applied multiplierx1.408
Blended Los Angeles adjustment specific to ductwork replacement.
- Permit component$130 – $465
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 Los Angeles 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 Los Angeles, CA.
- • 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.
Sources
Sources & verification
- City of Los Angeles building department
- Los Angeles permit portal
- California Building Standards Commission
- BLS Occupational Employment and Wage Statistics
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.