Oregon · HVAC

Ductwork Replacement cost in Oregon

Statewide pricing, permit posture and inspection sequence for ductwork replacement in Oregon. Your city or county issues the actual permit — use the local links below to confirm fees.

Model reviewed August 2026

Ductwork Replacement cost in Oregon

$3,000 – $14,200

Most Oregon homeowners pay around $6,400, or $300$700 per supply run. Permit fees typically add $105$370.

Permit: Yes. Oregon Residential Specialty Code, based on the IRC

Cost breakdown

Budget scope$3,000
Typical project$6,400
Premium / complex$14,200
per supply run$300 – $700
Permit fees$105 – $370
vs national baseline+19%
Timeline1-3 days of work, 1-3 weeks including permitting

What is different about ductwork replacement in Oregon

Statewide seismic detailing plus Portland's stormwater and tree-preservation review add steps that similar-cost states do not require.

Owner-builder: Homeowner permits allowed on owner-occupied property. Ductwork Replacement generally requires a licensed contractor to pull the permit, even where owner-builder status is available.

Inspections

  • Duct rough-in
  • Duct leakage test
  • Final mechanical inspection

What drives the price

  • Number of supply and return runs
  • Flex duct versus rigid sheet metal
  • Attic access and clearance
  • Return air sizing corrections
  • Removal of contaminated duct board

Ductwork pricing by city

Permit difficulty by city

Hometriva Permit Complexity Index: review load, added discipline reviews, wind and flood overlays, and how each jurisdiction sets fees.

CityComplexityReview timeInspections
Portland60/100 · Complex519 days4
Salem73/100 · Complex623 days4
Eugene73/100 · Complex623 days4
Gresham73/100 · Complex623 days4
Hillsboro73/100 · Complex623 days4
Beaverton73/100 · Complex623 days4
Bend73/100 · Complex623 days4
Medford73/100 · Complex623 days4
Springfield73/100 · Complex623 days4
Corvallis73/100 · Complex623 days4

What Oregon homeowners reported paying

Invoice amounts submitted for this state, shown beside the model.

Rebates and incentives in Oregon

What is still claimable, what expired, and where to check your own utility territory.

State home energy rebate programs (HEAR / HOMES)Varies by program

Federally funded, state-administered rebates for heat pumps, panel and wiring upgrades, insulation and whole-home retrofits. Availability, income tiers and funding depend entirely on the state program and can pause when a state's allocation runs out.

U.S. DOE — Home Energy Rebates

Frequently asked questions

Do I need a permit for ductwork replacement in Oregon?

In most jurisdictions this work is permitted and inspected. Requirements are set locally, so confirm the current application and inspection checklist with your building department before work starts.

How long does ductwork replacement take?

1-3 days of work, 1-3 weeks including permitting. Permit review and inspection scheduling are usually the largest source of variation.

What changes the price the most?

The largest cost drivers are number of supply and return runs; flex duct versus rigid sheet metal; attic access and clearance.

Sources

Sources & verification

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.