Cost to Ductwork Installation in San Jose, CA

$2,760–$11,040 in San Jose

38% above the national average · 1.38x cost multiplier

Expect to pay $2,760–$11,040 for a ductwork installation in San Jose, about 38% above the national benchmark. The West Coast region's contractor market and material costs account for most of this difference. The detailed breakdown below shows how budget, mid-range, and premium projects compare at San Jose prices.

Cost Breakdown in San Jose

Line Item	Low	Mid	High
Cost per linear ft	$14	$28	$55
Materials	$828	$2,070	$4,830
Labor	$1,656	$3,450	$8,280
Permits	$414	$690	$1,104
Total	$2,898+38% vs. national avg	$6,210+38% vs. national avg	$14,214+38% vs. national avg

Budget

Flex duct replacement, accessible attic or crawl space, straightforward run

Mid-Range

Sheet metal main trunk with flex branches, new system for 1,500 sq ft

Premium

Sheet metal throughout, exposed basement, complex multi-zone layout, test and balance

Material Options

Material prices below are national averages; availability in San Jose may shift costs slightly.

Material	Cost/Unit	Pros	Cons	Best For
Flexible Duct (Flex Duct)	$4 - $8 per linear foot installed	Cheap, fast to install, flexible routing around obstacles, widely available	Loses efficiency when kinked or sagged, shorter lifespan (10-15 years), harder to seal	Branch runs in accessible attics, budget-conscious repairs, short runsCheap, fast to install, flexible routing around obstacles, widely available
Sheet Metal (Galvanized Steel)	$12 - $25 per linear foot installed	Durable (40+ year lifespan), smooth interior for maximum airflow, takes mastic sealant well	Higher cost, heavier and harder to route, conducts sound	Main trunk lines, commercial applications, high-performance systemsDurable (40+ year lifespan), smooth interior for maximum airflow, takes mastic sealant well
Fiberglass Duct Board	$10 - $18 per linear foot installed	Built-in insulation (R-4 to R-6), lightweight, quieter than metal	Interior liner can crack and release fibers, harder to repair, not ideal in humid crawl spaces	Conditioned attic spaces, commercial buildings, systems with quietness requirementsBuilt-in insulation (R-4 to R-6), lightweight, quieter than metal
Insulated Flexible Duct	$6 - $12 per linear foot installed	Combines flex routing with R-6 to R-8 insulation in one product	Bulkier than uninsulated flex, still prone to efficiency losses from bends	Branch runs in unconditioned attics or crawl spaces where insulation is neededCombines flex routing with R-6 to R-8 insulation in one product
Spiral Round Duct	$15 - $30 per linear foot installed	Extremely smooth interior (lowest friction loss), visually attractive for exposed installations	Highest material cost, requires careful sizing and layout design	Exposed basement or industrial-aesthetic installations, high-efficiency systemsExtremely smooth interior (lowest friction loss), visually attractive for exposed installations

Other Projects in San Jose

Full Kitchen Remodel

Full Bathroom Remodel

ADU / In-Law Suite Construction

Back to national average for Ductwork Installation

San Jose Estimate

Typical Range

$2,760–$11,040

vs. National Average

38% above national

Cost Multiplier

1.38x

Cost Per linear ft

$14–$55

Estimates apply San Jose's 1.38x regional cost multiplier to national averages. Actual bids vary by contractor, project scope, and timing.

See national average costs →