Cost to Reroute Ductwork: Typical Prices and Budget Ranges 2026
Most homeowners pay between $800 and $6,500 to reroute ductwork depending on scope; the cost to reroute ductwork varies with linear feet moved, duct size, access, and whether registers or insulation are replaced. This article gives low-average-high pricing, per-unit rates, and the main variables that change a final quote.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Small single-branch reroute (5–15 LF) | $250 | $750 | $1,800 | Assumptions: existing attic access, 6–8″ round duct. |
| Whole-room or multi-branch reroute (30–80 LF) | $1,200 | $3,200 | $6,500 | Assumptions: partial ceiling/attic work, 8–14″ rectangular ducts. |
| Major remodel with new trunk reroute | $3,000 | $8,000 | $18,000 | Assumptions: open walls, permits, new insulation, ductboard or flexible runs. |
Typical Total and Per‑Unit Prices for Rerouting a Duct Run
Expect total jobs to be quoted as a lump sum and also as per linear foot for planning: common per‑ft rates are $4-$18 per linear ft installed. A simple 10‑foot branch reroute using 6–8″ round duct typically costs $250-$1,000. A full-trunk reroute in a two-story house (40–80 LF) normally costs $1,200-$6,500.
Assumptions: Midwest labor rates, standard metal or flex duct, normal attic/garage access.
How Quotes Break Down: Materials, Labor, Equipment, and Permits
Reroute estimates usually split into material purchases, labor hours, equipment rental, and permit fees when applicable.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $2-$12 per LF (flex) or $4-$25 per LF (sheet metal) | $75-$150 per hour; typical crew 2 workers | $50-$300 (scaffolding, lifts, tools) | $0-$600 depending on local code | $50-$450 for waste removal |
Which Site Variables Most Change the Reroute Price (Duct Size, Run Length, and Access)
Primary cost multipliers are duct diameter/area, total added/relocated linear feet, and how easy it is to reach the ducts. Examples: adding or moving under 20 LF typically stays in the low range; 20–50 LF pushes into average; above 50–80 LF begins high-range territory. Increasing from 8″ to 12″ round duct can raise material and labor by ~25%-60%.
Numeric thresholds: 0–20 LF (small), 20–50 LF (medium), 50+ LF (large trunk work).
How Job Type and Material Choice Affect Pricing (Sheet Metal vs. Flexible vs. Ductboard)
Sheet metal adds durability and costs more upfront, while flex is cheapest to install but can increase friction losses if overused. Typical material cost ranges: flexible duct $2-$8 per LF, galvanized sheet metal $4-$25 per LF, ductboard $6-$15 per LF. Labor for sheet metal is higher due to fitting and sealing time.
Practical Ways to Lower the Cost When Rerouting Ductwork
Control scope, pick simpler materials, do prep work, and bundle HVAC tasks to lower the final price. Specific tactics: leave existing trunk where possible and only reroute branches, choose insulated flex for non-critical runs, provide clear attic/crawl access, schedule off-peak seasons, and get 3 written quotes with itemized labor and material lines.
Typical Labor Time, Crew Size, and How That Translates to Cost
Most reroute jobs use a 1–3 person crew; small branch moves take 2–8 hours, medium jobs 10–24 hours, and large trunk reroutes 2–6 days. Example labor billing: 2 technicians × 8 hours × $95/hr = $1,520 for a typical medium reroute. Expect minimum call or diagnostic fees of $75-$200 on many estimates.
Regional Price Differences and When Local Codes Raise the Quote
Prices in coastal metro areas and high-cost states run ~15%-40% above national averages; rural areas often run 5%-20% lower. For example, a medium reroute averaging $3,200 nationally can be $3,600-$4,500 in a high-cost city and $2,600-$3,000 in a low-cost rural market.
Common Add‑On Costs: Register Moves, Insulation, and Cleanup
Ask for line‑item pricing for register relocation, insulation replacement, and drywall/trim repair because these often double or triple small reroute estimates. Typical add-on ranges: register relocation $60-$150 per register, insulation wrap $3-$12 per LF, drywall patching $150-$700 per opening.
Real-World Quote Examples With Specs and Totals
Concrete examples help translate ranges into budgets for similar jobs.
| Job | Specs | Labor Hours | Total |
|---|---|---|---|
| Small bedroom branch | 10 LF flex, attic access, 6″ dia | 3–5 hours | $350-$950 |
| Multi-room branch reroute | 35 LF mixed sheet/ flex, partial attic, 8–10″ dia | 12–20 hours | $1,600-$4,200 |
| New main trunk reroute | 70 LF sheet metal, permits, drywall repair | 30–80 hours | $5,500-$17,500 |
Assumptions: quoted totals include materials, labor, and minimal cleanup unless noted.