How much does ductwork replacement cost?

Nationally in 2026, HomeGuide puts installed ductwork at roughly $10–$25 per linear foot depending on material and access, and a typical home carries somewhere between 150 and 350 linear feet of duct. Angi reports most duct replacement projects landing between about $450 and $2,200 — because most 'replacement' jobs are partial: a crushed run here, a disconnected branch there. A full-system replacement scales well past that. What your house needs is a measurement question — call (251) 300-9817 and we'll scope it honestly.

Why do leaky ducts cost more in Baldwin County than the energy loss suggests?

Because here they leak in both directions. Supply leaks dump the air you paid to cool into a 130°F attic. But return-side leaks pull hot, near-saturated Gulf Coast attic air INTO the system — adding humidity load your AC then has to wring back out, sweating ductwork and registers, and pushing indoor humidity toward the mold-risk zone. In a dry climate duct leakage is an efficiency problem; in ours it's an efficiency problem plus an indoor air quality problem.

Sealing, repair, or replacement — how do I know which I need?

Rough triage: ducts that are intact but leaking at joints and connections get sealed (mastic, not cloth duct tape — see the glossary). Localized damage — a crushed flex run, a disconnected boot, rodent damage — gets repaired or partially replaced. Systemic problems (undersized trunks driving high static pressure, decades-old degraded flex, ducts sized for a different system) justify replacement designed to Manual D. A static pressure reading plus a look at the ducts themselves tells us which bucket you're in — and static pressure is checked on every Air Solutions install and tune-up.

Will new ductwork lower my power bill?

If your current ducts leak meaningfully, yes — sealed and correctly sized ducts stop paying to cool the attic, and they let the blower move design airflow without fighting high static pressure. The precise payback depends on how bad the leakage is, which is measurable, not guessable. We put the reading in the written report so the math is yours to check.

Ductwork Cost Guide · 2026

What Ductwork Actually Costs.

Sealing vs. repair vs. full replacement, the 2026 national benchmarks with sources named, and the Gulf Coast reality no national average captures: in our humidity, leaky ducts are an air-quality problem, not just an energy problem.

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National benchmarks · 2026

The national numbers, sourced.

Installed ductwork, per linear foot

$10 – $25 / ft

HomeGuide (2026); varies with material (flex vs. sheet metal) and access. Typical homes carry 150–350 linear feet.

Typical duct replacement project

≈ $450 – $2,200

Angi (2026); most projects are partial — a national average near $1,250 reflects that most jobs replace runs, not whole systems.

Full duct-system replacement

well beyond the typical range

Scope-dependent: total footage, attic access, material, and whether the layout is redesigned to Manual D.

Those are national figures — your quote depends on your footage, your attic, and what a static pressure reading shows. Call (251) 300-9817 for a scoped, written number.

The Gulf Coast duct problem

In our humidity, ducts leak twice.

Most Baldwin County ductwork runs through a vented attic that spends the summer hot and nearly saturated. A supply leak wastes the air you paid to cool. A return leak is worse: it pulls that hot, humid attic air into the system, loading your AC with moisture it has to remove all over again. The symptoms show up as rooms that never quite cool, indoor humidity that creeps past 55%, sweating registers, and utility bills out of proportion to the thermostat setting.

That's why static pressure — the tell-tale of duct trouble — is checked on every install and maintenance tune-up and why persistent humidity problems route to the indoor air quality page — the fixes overlap.

Scope tiers

Sealing → repair → replacement.

01Sealing — intact ducts leaking at joints get mastic and proper collars. Cheapest tier, biggest bang when leakage is the main finding. ('Duct tape' is banned from this job; see the glossary entry on duct sealing.)
02Repair / partial replacement — crushed flex runs, disconnected boots, rodent or storm damage. Priced by the run, which is why national 'typical project' figures sit under $2,200.
03Full replacement — undersized trunks, degraded decades-old flex, or a layout that never matched the equipment. Designed to Manual D so the new system breathes at design airflow and static pressure.

Ductwork Cost — Frequently Asked Questions

How much does ductwork replacement cost?
Nationally in 2026, HomeGuide puts installed ductwork at roughly $10–$25 per linear foot depending on material and access, and a typical home carries somewhere between 150 and 350 linear feet of duct. Angi reports most duct replacement projects landing between about $450 and $2,200 — because most 'replacement' jobs are partial: a crushed run here, a disconnected branch there. A full-system replacement scales well past that. What your house needs is a measurement question — call (251) 300-9817 and we'll scope it honestly.
Why do leaky ducts cost more in Baldwin County than the energy loss suggests?
Because here they leak in both directions. Supply leaks dump the air you paid to cool into a 130°F attic. But return-side leaks pull hot, near-saturated Gulf Coast attic air INTO the system — adding humidity load your AC then has to wring back out, sweating ductwork and registers, and pushing indoor humidity toward the mold-risk zone. In a dry climate duct leakage is an efficiency problem; in ours it's an efficiency problem plus an indoor air quality problem.
Sealing, repair, or replacement — how do I know which I need?
Rough triage: ducts that are intact but leaking at joints and connections get sealed (mastic, not cloth duct tape — see the glossary). Localized damage — a crushed flex run, a disconnected boot, rodent damage — gets repaired or partially replaced. Systemic problems (undersized trunks driving high static pressure, decades-old degraded flex, ducts sized for a different system) justify replacement designed to Manual D. A static pressure reading plus a look at the ducts themselves tells us which bucket you're in — and static pressure is checked on every Air Solutions install and tune-up.
Will new ductwork lower my power bill?
If your current ducts leak meaningfully, yes — sealed and correctly sized ducts stop paying to cool the attic, and they let the blower move design airflow without fighting high static pressure. The precise payback depends on how bad the leakage is, which is measurable, not guessable. We put the reading in the written report so the math is yours to check.

Scope it honestly

Get the Ducts Measured.

Static pressure reading, visual inspection, and a written recommendation — seal, repair, or replace — with the number attached. Pick a time; we confirm by phone during weekday office hours.

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Sources

HomeGuide, “How Much Does It Cost to Install or Replace Ductwork?” (2026) — homeguide.com
Angi, “How Much Does Duct Replacement Cost?” (2026) — angi.com

Measured, not guessed

Free On-Site Duct Assessment.

Static pressure reading and a written seal / repair / replace recommendation.

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