How much does ductwork replacement cost in Baltimore, MD?

Most Baltimore homeowners spend between $4,300 – $10,300 on ductwork replacement, with an average around $7,250. Local labor prices 14% above the national average, so Baltimore quotes tend to land at the higher end of national ranges.

Why is ductwork replacement more or less expensive in Baltimore than elsewhere?

Licensed trade labor in Baltimore runs about 114% of the national average, and the best crews book out fastest in spring and early summer. Maryland weather drives material choices here, so ask contractors what they install most often in Baltimore and why.

Do I need a permit for ductwork replacement in Baltimore, Maryland?

Most Baltimore, MD projects that change structure, electrical, plumbing or mechanical systems need a permit from the local building department; cosmetic work usually does not. Always confirm current requirements with the local building department before signing a contract, and make sure the permit is pulled by your licensed contractor.

How many quotes should I get in Baltimore?

Get at least three written quotes from licensed, insured Maryland contractors. Comparing line items — not just the bottom line — is the fastest way to spot an inflated bid in the Baltimore metro market.

How much does ductwork replacement cost in 2026?

Most homeowners pay between $3,750 and $9,000, with a national average near $6,375. Small, simple jobs land at the low end; large or premium-material jobs run well above the high end.

What is the cost per linear foot?

Installed pricing usually runs $25.00 to $60.00 per linear foot, including labor and materials. Expensive metros can run 15–45% higher than that range.

What drives the price up the most?

Scope and access. Larger quantities lower your per-linear foot price, but difficult access, demolition of existing work, structural repairs found mid-job, premium materials and rush scheduling each add 8–30%.

Permits are typically required when the work changes structure or ties into electrical, plumbing, gas or mechanical systems. Budget $75–$600 in most cities and confirm whether your contractor pulls it — unpermitted work can block a future home sale.

How long does the job take?

Most residential projects of this type finish in one to five working days once materials are on site. Custom orders, inspections and weather are the usual causes of delay.

How many quotes should I get?

Three. Bids on the same scope commonly vary 20–40%, and the middle bid with the strongest warranty and references is usually the best value — the cheapest bid often excludes prep, disposal or permits.

Home/Cost guides/Ductwork Replacement/Baltimore, MD

Baltimore metro · Maryland

Ductwork Replacement cost in Baltimore, MD

Baltimore homeowners typically pay $4,300 – $10,300 for ductwork replacement. Local labor and materials price 14% above the national average.

Get my Baltimore estimate Use the Baltimore calculator

Baltimore average

$7,250

Typical low

$4,300

Typical high

$10,300

Per linear foot

$28 – $68

Sample ZIP

What drives Baltimore pricing

Local labor

Licensed trade labor in Baltimore runs about 114% of the national average, and the best crews book out fastest in spring and early summer.

Permits & code

Most Baltimore, MD projects that change structure, electrical, plumbing or mechanical systems need a permit from the local building department; cosmetic work usually does not.

Climate & conditions

Maryland weather drives material choices here, so ask contractors what they install most often in Baltimore and why.

Instant cost calculator

Adjust the inputs to see live pricing

Duct run (linear feet)150 linear feet

Quality / material level

Site access

Removal / prep work

Timing

Estimated project cost

$4,275 – $5,843

Most homeowners pay around $5,059

Compare quality / material level

Cost by material in Baltimore

Installed Baltimore pricing per linear foot.

Option	Installed cost	Pros	Cons
Flexible duct	$30 – $41	—	—
Sheet metal trunk and flex runs	$41 – $54	—	—
Insulated sheet metal	$54 – $70	—	—
Custom sealed metal with zoning	$70 – $97	—	—

Where the money goes in Baltimore

A typical $7,250 Baltimore project, broken down by line item.

Labor0.45% · $33
Materials0.38% · $28
Permits & inspections0.05% · $4
Overhead & profit0.12% · $9

Common add-ons

Extras that show up on Baltimore quotes but rarely in the headline price.

Duct sealing (Aeroseal)

$1,150 – $3,400

New returns

$340 – $1,350

Zoning dampers

$1,700 – $5,150

Asbestos duct wrap removal

$1,150 – $5,700

Ways to save in Baltimore

Replace ducts while the system is being replaced — one mobilization.
Seal instead of replace when ducts are intact but leaky.
Collect three written bids on an identical scope — spreads of 20–40% are normal.
Book in the off-season and stay flexible on the start date to save 5–15%.
Bundle nearby work into one mobilization so you only pay setup and travel once.
Ask what the contractor would change to cut 10% without hurting durability.

Baltimore FAQs

Get a Baltimore price you can budget against

Answer a few questions about your project and we'll model a low, average and premium price for your MD ZIP code — then connect you with vetted local pros.

Get free quotes from certified pros

More Baltimore research

Best ductwork replacement companies in Baltimore Ductwork Replacement permits in Maryland Ductwork Replacement near me All Maryland prices

More Maryland cities

Columbia Silver Spring Rockville Annapolis Frederick

Other project costs in Baltimore

Fence Installation in Baltimore

$1,710 – $4,560

Roof Replacement in Baltimore

$9,690 – $38,760

Kitchen Remodel in Baltimore

$20,520 – $108,300

HVAC Replacement in Baltimore

$6,270 – $20,520

Deck Building in Baltimore

$5,016 – $13,680

Window Replacement in Baltimore

$513 – $1,710

See every Baltimore cost guide