Ductwork Replacement Cost Calculator
Accurate HVAC duct replacement estimates for US homeowners – material, labor & complexity included.
Replacing old, leaky ductwork improves energy efficiency and indoor air quality. Our ductwork replacement cost calculator gives you a detailed 2026 estimate based on material type, linear feet, and job complexity – helping you budget for a full HVAC upgrade or partial retrofit. Compare prices across flexible, rigid, and sheet metal ducts before hiring a pro.
Estimate your duct replacement cost
Average US home: 80–200 ft
$2,850 – $3,750
Estimated total (materials + labor + removal) based on typical US 2026 rates.
Ductwork replacement cost by material & size (2026 averages)
| Material type | Cost per linear foot (installed) | Avg. 100 ft project | Lifespan |
|---|---|---|---|
| Flexible duct (insulated) | $6 – $10 | $600 – $1,000 | 10–15 yrs |
| Rigid fiberglass / galvanized | $12 – $18 | $1,200 – $1,800 | 20–25 yrs |
| Sheet metal (hard duct) | $18 – $28 | $1,800 – $2,800 | 30+ yrs |
| 🔧 Additional labor: old duct removal (+$300–$700), sealing/modifications (+$200–$500). Prices vary by region. | |||
Exclusive 2026 insight: 3 cost triggers you might miss
- 📈 Material inflation: Galvanized steel prices rose ~9% in early 2026 due to supply chain shifts – factor +$0.80–$1.20 per foot vs 2025.
- 🛠️ Mastic sealing & insulation: Modern energy codes (IECC 2024 update) often require sealing with mastic, adding $250–$500 to total project.
- 🏠 Return plenum modifications: Older homes may need custom plenum refit (adds $300–$800) – our calculator complexity option covers this.
Quick installer checklist – compare quotes confidently:
✅ Ask for Manual D design ✅ Verify 2026 permit costs ✅ Include load calculation ✅ Warranty on labor & materials
How to use the ductwork replacement cost calculator (step-by-step)
1 Measure duct runs
Estimate total linear feet (main trunk + branches).
Estimate total linear feet (main trunk + branches).
2 Choose material
Flexible for budget, rigid for durability, sheet metal for longevity.
Flexible for budget, rigid for durability, sheet metal for longevity.
3 Select complexity
Attic/basement = easy, crawlspace = moderate, wall cavities = complex.
Attic/basement = easy, crawlspace = moderate, wall cavities = complex.
4 Add removal
Professional demo adds 5–10% to budget. Then get final estimate.
Professional demo adds 5–10% to budget. Then get final estimate.
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Frequently asked questions – ductwork replacement
❓ What is the average ductwork replacement cost for a 2,000 sq ft home in 2026?
Typically $3,500–$7,500 depending on material, accessibility, and regional labor. Our calculator reflects updated 2026 rates with material inflation.
Typically $3,500–$7,500 depending on material, accessibility, and regional labor. Our calculator reflects updated 2026 rates with material inflation.
❓ How often should residential ductwork be replaced?
Every 15–25 years. If you notice high energy bills, uneven airflow, or visible mold, replacement is recommended earlier. 2026 energy codes encourage upgrading leaky systems.
Every 15–25 years. If you notice high energy bills, uneven airflow, or visible mold, replacement is recommended earlier. 2026 energy codes encourage upgrading leaky systems.
❓ Can I replace ducts myself to save money?
DIY flexible duct installation is possible in open areas, but professional sealing (mastic/aeroseal) ensures efficiency. Partial DIY can reduce cost by 20–30%.
DIY flexible duct installation is possible in open areas, but professional sealing (mastic/aeroseal) ensures efficiency. Partial DIY can reduce cost by 20–30%.
❓ Does the calculator include permit and testing fees?
Permits (local) add $150–$400; post-installation pressure testing adds ~$200. Our estimate focuses on material+labour, but the complexity option includes moderate accessibility surcharges.
Permits (local) add $150–$400; post-installation pressure testing adds ~$200. Our estimate focuses on material+labour, but the complexity option includes moderate accessibility surcharges.
❓ Which duct material lasts the longest?
Sheet metal (galvanized steel) lasts 30+ years, ideal for long-term ownership. Rigid fiberglass offers good insulation but may degrade faster in humid climates.
Sheet metal (galvanized steel) lasts 30+ years, ideal for long-term ownership. Rigid fiberglass offers good insulation but may degrade faster in humid climates.
❓ How does ductwork replacement improve HVAC efficiency?
Sealed, correctly sized ducts reduce leakage by up to 30%, lowering monthly utility bills by 10–20%. 2026 IRA tax credits may apply for energy-efficient upgrades.
Sealed, correctly sized ducts reduce leakage by up to 30%, lowering monthly utility bills by 10–20%. 2026 IRA tax credits may apply for energy-efficient upgrades.
Disclaimer – for estimation only
This ductwork replacement cost calculator provides approximate figures based on 2026 national averages in the USA. Actual prices vary by city, contractor rates, and project specifics. Always obtain multiple quotes and consult an HVAC professional before proceeding. TotalCalcHub is not liable for decisions made solely on these estimates.
This ductwork replacement cost calculator provides approximate figures based on 2026 national averages in the USA. Actual prices vary by city, contractor rates, and project specifics. Always obtain multiple quotes and consult an HVAC professional before proceeding. TotalCalcHub is not liable for decisions made solely on these estimates.