Texas pricing
Air Duct Replacement Cost Calculator — Texas
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 Texas labor and material pricing.
Model reviewed August 2026
Does ductwork replacement cost cost more in Texas?
-5% versus the national baseline
Installed prices in Texas run about 5% below the national baseline. Permit fees are about 5% lower than the national average. Owner-builder permits allowed on owner-occupied property.
Texas has no statewide contractor licensing for general residential work, so verifying trade licenses and insurance matters more here than in almost any other state.
Compare with the national average ductwork replacement cost calculator.
Estimated total cost
$6,740 – $9,573
- Cost per square foot
- $4
- Cost per supply run
- $766
Estimates only. Local pricing, site conditions and code requirements change the real number.
What changes the number in Texas
| Local cost indexBelow the national baseline | 0.95x national |
|---|---|
| Permit fee index | 0.95x national |
| Code basisStatewide code applies | Statewide IRC adoption for residential construction, amended locally |
| Owner-builder posture | Owner-builder permits allowed on owner-occupied property |
| Largest markets | Houston, San Antonio, Dallas, Austin |
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 Texas
City-level cost and permit pages with local building department links.
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
- Texas Department of Licensing and Regulation
- ENERGY STAR sizing and efficiency guidance
- ACCA Manual J / Manual S sizing standards
- AHRI equipment performance directory
- International Code Council (IRC/IBC)
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.