Air Duct Replacement / Cost Guide

How Much Does Duct Replacement Cost in Dallas-Fort Worth?

Real 2026 pricing for duct replacement in DFW — broken down by home size, duct material, job type, and the factors that move the number up or down. No vague ranges, no surprise fees.

Updated March 2026 8 min read Dallas-Fort Worth Market
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Quick Answer

Duct Replacement Cost in DFW: $1,400 – $5,500

For most Dallas-Fort Worth homes, air duct replacement costs between $1,400 and $5,500. A typical 1,500 sq ft home runs $1,800–$2,800; a 2,500 sq ft home typically falls in the $3,000–$4,200 range. Rigid metal duct costs more than flexible duct but lasts significantly longer. The best way to get an exact number is a free in-home estimate — LEX provides these at no charge.

Duct Replacement Cost by Home Size

Home square footage is the single biggest driver of duct replacement cost. Larger homes have more duct runs, more registers, and typically more complex layouts — all of which affect labor and materials. Here are typical ranges for DFW homes in 2026:

Home Size Estimated Cost Range Notes
Under 1,000 sq ft $1,400 – $1,900 Simpler layout, fewer runs, shorter install time
1,000 – 1,500 sq ft $1,700 – $2,400 Most common range for DFW starter homes
1,500 – 2,000 sq ft $2,200 – $3,200 Typical DFW single-family home range
2,000 – 2,500 sq ft $2,800 – $3,800 Multi-zone homes may be at the upper end
2,500 – 3,500 sq ft $3,500 – $5,000 Two-story homes, complex layouts
3,500 sq ft+ Custom Quote Multi-zone, custom design — call for assessment
Prices are for flexible ductwork in DFW. Rigid metal adds 20–30%. Tight attic access, two-story homes, or older homes may increase cost. LEX provides a free, exact quote before any work begins.

Get a More Accurate Estimate

Square footage alone doesn't determine your final cost. The number of zones, your attic's accessibility, the condition of your existing ductwork, and the duct material you choose all play a role. LEX provides free in-home assessments so you get a real number, not a guess. Call (972) 466-1917 or schedule online.

Flexible Duct vs. Rigid Metal: Cost Comparison

The two most common duct materials in DFW homes are flexible duct (flex duct) and rigid sheet metal. Each has a different cost profile and set of tradeoffs:

Flexible Duct

Cost

  • $2–$5 per linear foot installed
  • Lower upfront cost
  • Most common choice for DFW homes

Pros

  • Easier to install in tight spaces
  • Handles curves and bends well
  • Lower material and labor cost

Cons

  • Lifespan of 15–25 years
  • Can sag, kink, or collapse over time
  • More susceptible to pest damage

Rigid Sheet Metal

Cost

  • $10–$20 per linear foot installed
  • 20–30% higher total project cost
  • Best long-term value for performance

Pros

  • Lasts 30+ years with proper maintenance
  • Better airflow efficiency
  • Resistant to mold and pests

Cons

  • Higher upfront cost
  • Requires more labor to install
  • Less flexible around obstacles

For most DFW homeowners replacing existing flex duct, new flexible duct is the practical choice — it's cost-effective and performs well when properly installed and insulated. If you're building new, doing a major renovation, or want a premium system that lasts decades, rigid metal is worth the investment. LEX will help you make the right call for your home and budget.

What Affects the Cost of Duct Replacement?

Beyond home size and material type, several factors can move your duct replacement cost up or down:

Key Pricing Factors

Attic Accessibility — Low-pitch attics and tight crawlspaces require more labor time. Walk-up attics are the most cost-efficient.
Number of Stories — Two-story homes with ductwork in both floor cavities and the attic cost more than single-story homes.
Home Age — Homes built before 2000 often have older duct configurations requiring redesign, adding cost vs. a straight swap-out.
Zoning & System Complexity — Multi-zone systems with dampers and separate thermostats involve more components and labor than single-zone systems.
Insulation Level — DFW attic temps can exceed 130°F in summer. Properly insulating new ductwork to R-8 adds cost but dramatically improves efficiency.
Damage & Remediation — If existing ductwork has mold, pest damage, or asbestos-wrapped connections (in older homes), additional remediation may be needed before installation.

Partial vs. Full Duct Replacement Cost

Not every duct replacement job requires tearing out the entire system. Sometimes a partial replacement — targeting the most damaged or problem sections — makes more sense:

Scope of Work Typical Cost Best For
Single duct run replacement $200 – $600 One collapsed or disconnected run affecting a single room
Partial replacement (25–50% of system) $700 – $2,000 Multiple problem areas, rest of system in good condition
Duct sealing + minor repairs $400 – $1,200 Leaky connections but structurally sound ductwork
Full system replacement $1,400 – $5,500+ Old system, widespread damage, or HVAC equipment upgrade
If more than 30–40% of your system needs work, full replacement is often more cost-effective than repeated partial fixes.

Repair vs. Replace: Not Sure Which You Need?

LEX technicians will inspect your entire duct system and give you an honest recommendation — never replacing more than necessary. If repair is all you need, that's what we'll recommend. Read our repair vs. replacement guide →

Energy Savings: Will New Ductwork Pay for Itself?

This is the question most DFW homeowners ask, and the honest answer is: yes, for the vast majority of homes. Here's why:

The EPA estimates that leaky ductwork wastes 20–30% of the conditioned air your HVAC system produces. In DFW, where air conditioners run 5–7 months of the year, that adds up fast. If your current monthly electric bill averages $200 in summer, leaky ducts may be costing you $40–$60 per month — or $250–$400 per year — in wasted cooling that never reaches a room.

Monthly Energy Bill Estimated Waste (25%) Annual Waste Payback on $2,500 Job
$150/month ~$37/month ~$300/year ~8 years
$200/month ~$50/month ~$400/year ~6 years
$250/month ~$62/month ~$500/year ~5 years
$300/month ~$75/month ~$600/year ~4 years
Assumes 25% energy loss from leaky ducts and $2,500 duct replacement cost. Actual savings vary by home. Comfort improvements — fewer hot spots, less humidity — are immediate and ongoing.

Beyond the energy math, new ductwork also extends the life of your HVAC equipment (by reducing the strain caused by pressure imbalances), improves indoor air quality by eliminating attic dust infiltration, and increases your home's resale value.

Financing Options for Duct Replacement

Duct replacement is a meaningful home investment — most jobs fall in the $2,000–$4,000 range. LEX makes this manageable with flexible financing options:

Financing Available — Including 0% Interest Plans

Qualified homeowners can take advantage of 0% interest financing plans for duct replacement. Spread your investment over 12–24 months with no interest charges. Ask our team about current financing offers when you call — (972) 466-1917.

We also work with homeowners to identify any applicable utility rebates. Oncor and other DFW-area utilities occasionally offer incentives for energy-efficiency improvements, including ductwork upgrades. Ask our team what may be available at the time of your project.

Frequently Asked Questions

How much does duct replacement cost per square foot?

Duct replacement typically costs $0.90–$1.80 per square foot of home for flexible duct, or $1.50–$2.50 per square foot for rigid metal, including labor. So a 2,000 sq ft home with flex duct would run roughly $1,800–$3,600. Note that per-square-foot estimates are a rough guide — the actual cost depends more on the number of duct runs and your attic's layout than on floor area alone.

Does homeowners insurance cover duct replacement?

Standard homeowners insurance typically does not cover duct replacement due to age and wear, which is considered a maintenance issue. However, if ductwork is damaged by a covered peril — such as a burst pipe flooding your attic, or storm damage — your policy may cover some or all of the cost. Check with your insurance provider and keep your inspection report for documentation.

Is it cheaper to replace ductwork when I replace my AC unit?

Yes — often significantly. If you're already having your HVAC system replaced, scheduling duct replacement at the same time can save 15–25% on total labor costs because the technicians are already on-site and the system is already shut down. If your ductwork is over 12–15 years old and you're replacing your AC, it's worth getting a duct assessment at the same time.

Can I get a tax credit for replacing ductwork?

The federal Inflation Reduction Act (IRA) offers energy efficiency tax credits for qualifying home improvements. Ductwork replacement may qualify under the home energy efficiency improvement credit — specifically if it's part of a larger air sealing or insulation project. The credit can be up to 30% of costs (with caps). Consult a tax professional for your specific situation, and save all receipts and documentation.

How do I get the most accurate duct replacement quote?

The most accurate quote comes from an in-person duct inspection — not a phone estimate or an online calculator. A technician needs to assess your attic access, measure your existing duct runs, evaluate current condition, and confirm what your HVAC equipment requires. LEX provides free in-home duct assessments throughout DFW. Call (972) 466-1917 to schedule yours.

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Duct Replacement Throughout Dallas-Fort Worth