Cost to Reroute Ductwork

On February 25, 2026 By newsroom Topic: Home Services

Rerouting ductwork improves HVAC efficiency and adapts to home changes like remodels or additions. Here's a breakdown of costs, factors, and tips to help you plan.

1. Average Costs

Basic Rerouting: $1,200–$6,000
Per Linear Foot (Materials + Labor): $6–$23
New Vent Installation: $250–$500 per vent

2. Duct Material Costs

| Material | Cost per Linear Foot | Features | |-------------------------|--------------------------|------------------------------------------------------------------------------| | Non-insulated Flex | $1–$3 | Affordable, easy to install, less durable | | Insulated Flex | $2–$4 | Better energy efficiency | | Fiberglass | $4–$6 | Resistant to noise and temperature changes | | Sheet Metal | $7–$13 | Durable, long-lasting, higher cost |

3. Cost Factors

Length of Ducts: Longer duct systems increase costs due to material and labor requirements.
Accessibility: Difficult-to-reach spaces like crawlspaces or attics can add labor costs.
Return Air Drops: Replacing or adding a return air drop costs $300–$800.
Ceiling/Drywall Repair: Post-project aesthetic fixes cost:
Drywall Repair: $150–$330
Ceiling Repair: $300–$1,200
Mold or Asbestos Removal: Adds significant costs:
Asbestos Testing/Removal: $250–$2,200
Mold Remediation: $450–$6,000

4. Labor Costs

Installation Fees: $5–$10 per linear foot
Complex projects or limited access areas (e.g., small crawlspaces) can lead to higher rates.

5. Add-Ons to Consider

| Add-On | Cost |
|------------------------|-------------------------|
| HVAC Inspection | $70–$500 |
| Air Duct Cleaning | $150–$780 |
| Duct Insulation | $1–$6 per sq. ft. |
| Adding Vents | $250–$500 per vent |

6. DIY vs. Hiring a Pro

DIY:
Suitable for minor tasks like duct insulation or vent adjustments.
Requires proper tools and HVAC knowledge.
Risk of errors that may cause long-term inefficiencies.
Hiring a Pro:
Essential for complex rerouting or asbestos/mold issues.
Ensures compliance with building codes and HVAC efficiency.

7. Ways to Save Money

Compare Quotes: Get multiple estimates to find competitive pricing.
Choose Affordable Materials: Opt for flexible or fiberglass ducts over expensive sheet metal.
Bundle Services: Combine duct rerouting with other HVAC needs like cleaning or inspections.
DIY Simple Tasks: Handle minor repairs or insulation to reduce labor costs.
Avoid Peak Seasons: Schedule the project during off-peak times for better rates.

Summing it up

Rerouting ductwork can range from $1,200 to $6,000, depending on the materials, complexity, and additional repairs. Hiring a professional ensures a seamless, efficient installation while maximizing long-term HVAC savings. Proper planning, material choices, and strategic scheduling can help you stay within budget!