What Should I Charge for Insulation? (2026 Contractor Pricing Guide)
Short answer
Most insulation contractors charge about $1.35 to $2.50 per square foot for blown-in attic insulation to R-38, roughly $1.45 to $2.70 per square foot for open-cell spray foam, and $2.25 to $4.20 for 2-inch closed-cell, before air sealing and removal. Material is a little over half the price on most jobs; removing old insulation runs about $1.30 to $2.65 per square foot.
Insulation unit prices by work item
Enter a ZIP code to adjust every row to local cost levels. Rates start from a national baseline of 1.00 and scale by the published city cost index for that area.
Showing national baseline rates.
| Work item | Unit | Material | Labor | What to charge |
|---|---|---|---|---|
Blown-in attic insulation, to R-38 Existing depth, target R-value, and attic access set the number. | sq ft | $0.90 | $0.60 | $1.35 to $2.51 |
Fiberglass batts, open walls or floors Cavity depth (2x4 versus 2x6) and faced versus unfaced batts. | sq ft | $0.70 | $0.60 | $1.17 to $2.18 |
Open-cell spray foam, about 3.5 in Rooflines and cathedral ceilings add masking and rig time. | sq ft | $0.90 | $0.70 | $1.44 to $2.68 |
Closed-cell spray foam, 2 in Each extra inch adds roughly proportional material; thermal barrier is extra. | sq ft | $1.60 | $0.90 | $2.25 to $4.18 |
Dense-pack cellulose, existing closed walls Drilling and patching siding or drywall is most of the labor. | sq ft | $0.80 | $1.30 | $1.91 to $3.55 |
Remove old attic insulation Rodent contamination and vermiculite testing change this completely. | sq ft | $0.20 | $1.30 | $1.28 to $2.66 |
Material and labor columns are bare cost per unit before markup. The charge column applies +15% materials, +20% labor, then +10% overhead and profit, and shows a realistic range rather than one false-precision number.
How this number is built
There is no proprietary data feed here and nothing is hidden. Every figure above comes from four visible steps, which is exactly how your own price book should work:
- 1Start from bare material and bare labor cost per unit, at a national baseline.
- 2Multiply both by your local cost factor, from the ZIP table below.
- 3Add markup: 15% on materials, 20% on labor. This covers waste, procurement and supervision.
- 4Add 10% overhead and profit on the marked-up subtotal, then show a range rather than one number.
Regional cost factors
A national average is close to useless on its own. The same insulation job prices very differently across markets. These are the multipliers applied above, against a 1.00 national baseline.
| Metro | Factor | Blown-in attic insulation, to R-38 (sq ft) |
|---|---|---|
| San Francisco, CA | 1.38x | $1.86 to $3.46 |
| New York, NY | 1.32x | $1.78 to $3.31 |
| Boston, MA | 1.24x | $1.68 to $3.11 |
| Los Angeles, CA | 1.22x | $1.65 to $3.06 |
| Seattle, WA | 1.20x | $1.62 to $3.01 |
| Chicago, IL | 1.18x | $1.59 to $2.96 |
| Washington, DC | 1.15x | $1.55 to $2.89 |
| Denver, CO | 1.08x | $1.46 to $2.71 |
| Austin, TX | 1.04x | $1.41 to $2.61 |
| Phoenix, AZ | 1.02x | $1.38 to $2.56 |
| Atlanta, GA | 1.00x | $1.35 to $2.51 |
| Houston, TX | 0.98x | $1.32 to $2.46 |
Before you send this number to a client
Worth doing
- Walk the actual site before committing to a fixed price.
- Itemize disposal, permits and prep as their own lines.
- Write down what is excluded, not only what is included.
- Compare these rates against your own last three invoices.
Where bids go wrong
- Using a national average as if it were a local quote.
- Forgetting that overhead is a real cost, not profit.
- Absorbing prep and access problems instead of pricing them.
- Quoting from memory when material prices moved.
Frequently asked questions
How much should I charge per square foot for insulation?
Blown-in attic insulation to R-38 usually prices at about $1.35 to $2.50 per square foot, batts in open walls $1.15 to $2.20, open-cell spray foam $1.45 to $2.70 and 2-inch closed-cell $2.25 to $4.20. Air sealing, baffles and removal of old material are separate lines.
Should I price insulation by square foot or by R-value?
By square foot at a stated R-value or thickness. That lets the client compare quotes on the same basis and makes it clear what an upgrade from R-38 to R-49 costs.
Is air sealing included in an attic insulation quote?
Price it separately. Sealing top plates, penetrations and the attic hatch is skilled labor and often does more for comfort than extra inches of insulation. Listing it shows the client the difference between a cheap blow-in and a proper job.
Do rebates affect what I charge for insulation?
They affect what the client pays, not your price. Quote your full price, then show utility or tax-credit rebates as a separate estimate the client can verify. Do not promise a rebate amount you do not control.
Other trades
Turn these rates into a sent proposal
A table is a starting point. Describe the job in plain words and Takeoff Convert prices it with cited starting prices (government wage data for labor, live supplier prices for materials where it can find them) that learn your own as you win jobs, then produces an itemized proposal your client can e-sign.
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