How Much Does Insulation Cost in Boise, ID?

Updated March 2026 · Boise metro area · Based on BLS wage data and local market costs

Boise Average Cost (per project)

Low

$920

Average

$2,300

High

$4,600

BudgetMid-RangePremium

Itemized Cost Breakdown

Estimated for Insulation area (sq ft): 1,000 sqft · Mid-Range tier · Local cost index: 0.92x

Line Item	Low	Mid	High
Insulation material Fiberglass batts, blown-in, or spray foam Shop Insulation	$460	$1,840	$3,220
Vapor barrier Polyethylene sheeting for moisture control Shop Insulation	$92	$184	$276
Air sealing Caulking and foam sealing around penetrations	$92	$276	$460
Old insulation removal Removal and disposal of existing insulation	$0	$690	$1,380
Labor Insulation installer crew	$460	$1,380	$2,300
Total Estimated Cost	$1,104	$4,370	$7,636

Costs adjusted for local market conditions. Actual prices vary based on project specifics, contractor, and material choices.

Affiliate Disclosure: Some product links on this page are affiliate links. If you purchase through these links, we may earn a small commission at no additional cost to you. This helps support our free cost guides. We only link to retailers we trust. Learn more about our methodology.

Cost Calculator

Adjust project size and material tier to estimate your cost.

Insulation area (sq ft)

2003,000

Material Tier

Your Estimated Cost

Low

$1,104

Average

$4,370

High

$7,636

View itemized breakdown

Item	Low	High
Insulation material	$460	$3,220
Vapor barrier	$92	$276
Air sealing	$92	$460
Old insulation removal	$0	$1,380
Labor	$460	$2,300
Total	$1,104	$7,636

Estimates based on local cost data. Get quotes from licensed contractors for accurate pricing.

What Drives Insulation Cost in Boise?

The average cost of insulation in Boise, ID is $2,300 per project. Most homeowners pay between $920 and $4,600, depending on the scope of work, materials selected, and contractor experience.

Installation of home insulation in attics, walls, and crawl spaces.

Local Labor Costs

Construction workers in Boise earn an average of $21.9/hr — 4% below the national average. Labor typically accounts for 40-60% of total project cost.

Materials in ID are subject to 6.00% sales tax, which adds to the overall project cost. For a $2,300 project, expect roughly $55 in tax on materials alone.

Boise issued approximately 7,800 residential building permits in 2023, putting it in the smaller but active construction markets. High permit activity can mean busier contractors and longer wait times for scheduling.

Factors That Affect Cost

Area to insulate
Insulation type
R-value needed
Accessibility
Contractor experience — Established contractors with strong reviews may charge 10-20% more
Local cost of living — Boise's cost index is 0.92x the national baseline

Best Time for Insulation in Boise

Boise has cold, snowy winters and dry summers. The construction season is compressed to May through October. Winter temperatures regularly drop below freezing, stopping exterior work.

Best Months

May, Jun, Jul, Aug, Sep

Lower demand often means better pricing and faster scheduling.

Peak Season (Higher Prices)

Dec, Jan, Feb

High demand can add 10-20% to project costs.

Monthly Weather in Boise

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg High	37°	44°	55°	63°	72°	82°	92°	90°	79°	64°	48°	37°
Avg Low	23°	27°	33°	38°	46°	53°	60°	59°	49°	39°	31°	23°
Rain (in)	1.3	1	1.3	1.2	1.2	0.6	0.3	0.2	0.5	0.8	1.3	1.4

Source: Open-Meteo historical data (2024)

Licensing & Permits in ID

Idaho requires contractor registration through the Idaho Contractor Board for all construction work. Public works projects require additional licensing.

Verify a contractor's license at Idaho Contractors Board.