Cost to Wall Insulation (Blown-In) in Denver, CO

$1,120–$5,600 in Denver

12% above the national average · 1.12x cost multiplier

Expect to pay $1,120–$5,600 for a wall insulation (blown-in) in Denver, about 12% above the national benchmark. The Mountain West 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 Denver prices.

Cost Breakdown in Denver

Line Item	Low	Mid	High
Cost per sq ft	$1	$2	$4
Materials	$448	$1,008	$2,240
Labor	$896	$2,016	$3,920
Permits	$0	$0	$224
Total	$1,344+12% vs. national avg	$3,024+12% vs. national avg	$6,384+12% vs. national avg

Budget

Blown-in cellulose, 1,000 sq ft of exterior wall, drill-and-fill method, patch holes

Mid-Range

Dense-pack cellulose or fiberglass, 2,000 sq ft, existing home retrofit with patching

Premium

Spray foam or high-performance dense-pack, full exterior envelope, older home

Material Options

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

Material	Cost/Unit	Pros	Cons	Best For
Blown-In Cellulose (Standard)	$1.00 - $2.00 per sq ft installed	Recycled content, excellent air-sealing properties, R-3.5/inch, fire-treated, widely available	Can settle slightly over time (dense-pack minimizes this), heavier than fiberglass	Most retrofits - the default choice for drill-and-fill wall insulationRecycled content, excellent air-sealing properties, R-3.5/inch, fire-treated, widely available
Blown-In Fiberglass (Standard)	$1.00 - $2.00 per sq ft installed	Does not settle, moisture-resistant, R-2.2-2.7/inch, lighter than cellulose	Slightly lower R-value per inch than cellulose, less effective air sealing	Humid climates where moisture management is a concernDoes not settle, moisture-resistant, R-2.2-2.7/inch, lighter than cellulose
Dense-Pack Cellulose	$1.50 - $2.50 per sq ft installed	Higher density (3.5 lbs/cubic ft) virtually eliminates settling, better air sealing than standard blown-in	Requires specialized equipment and experienced installer, slightly more expensive	Exterior walls where settling would reduce performance, high-performance retrofitsHigher density (3.5 lbs/cubic ft) virtually eliminates settling, better air sealing than standard blown-in
Open-Cell Spray Foam (R-3.7/inch)	$2.00 - $3.50 per sq ft installed	Excellent air sealing, fills irregular cavities completely, soft and flexible	Requires removal of existing drywall for application (open-wall install), expensive retrofit	New construction or gut renovations where walls are already openExcellent air sealing, fills irregular cavities completely, soft and flexible
Closed-Cell Spray Foam (R-6.5/inch)	$3.00 - $5.00 per sq ft installed	Highest R-value per inch, acts as vapor barrier, rigid structural improvement	Very expensive, not practical for closed-wall retrofit, off-gassing during install	New construction, below-grade walls, extremely cold climates needing maximum R-valueHighest R-value per inch, acts as vapor barrier, rigid structural improvement

Other Projects in Denver

Full Kitchen Remodel

Full Bathroom Remodel

Basement Finishing

Back to national average for Wall Insulation (Blown-In)

Denver Estimate

Typical Range

$1,120–$5,600

vs. National Average

12% above national

Cost Multiplier

1.12x

Cost Per sq ft

$1–$4

Estimates apply Denver's 1.12x regional cost multiplier to national averages. Actual bids vary by contractor, project scope, and timing.

See national average costs →