Attic insulation cost
Prices checked
Typical installed cost
$2,800
Sourced installed range, not a quote
$1,250 to $4,350
Attic insulation cost has an overall typical figure of $2,800, within a sourced range of $1,250 to $4,350. The ranges on this page come from two sources, Angi and HomeGuide. The insulation type and the size of the attic drive the price. Use the figure as a starting budget, not a quote.
By insulation type
Each row combines one range from each of the two sources. HomeGuide's figures are installed, with labor and materials, for an attic floor of a typical size. Angi does not say whether its per-project totals include labor; its type figures are for professional installation.
| Insulation type | Low | Typical | High |
|---|---|---|---|
| Attic insulation, typical range | $1,250 | $2,800 | $4,350 |
| Blown-in | $950 | $1,900 | $2,900 |
| Batt and roll | $1,050 | $2,100 | $3,150 |
Price by insulation type. The median rule combines the two supplied ranges, and typical is the median of the source midpoints.
See each source's figures
Attic insulation, typical range
- Angi: $1,500 to $6,000. Updated October 6, 2026; accessed October 21, 2026. Does not say whether per-project totals include labor; type figures are for professional installation.
- HomeGuide: $1,000 to $2,700. Updated January 13, 2026; accessed October 21, 2026. Installed figures, labor and materials, for an attic floor of about 1,100 to 1,500 square feet.
Blown-in
- Angi: $975 to $2,200. Updated October 6, 2026; accessed October 21, 2026. Does not say whether per-project totals include labor; type figures are for professional installation.
- HomeGuide: $900 to $3,600. Updated January 13, 2026; accessed October 21, 2026. Installed figures, labor and materials, for an attic floor of about 1,100 to 1,500 square feet.
Batt and roll
- Angi: $1,000 to $2,400. Updated October 6, 2026; accessed October 21, 2026. Does not say whether per-project totals include labor; type figures are for professional installation.
- HomeGuide: $1,100 to $3,900. Updated January 13, 2026; accessed October 21, 2026. Installed figures, labor and materials, for an attic floor of about 1,100 to 1,500 square feet.
Types, attic sizes and related work
Other insulation types, attic size and removing old insulation can change the total. These single-source figures keep their original amounts and wording.
Overall figure from HomeGuide
HomeGuide gives an overall average. It is shown for context and is not used in the ranges above.
- Overall average
- $1,800
- Source: HomeGuide
Other insulation types from HomeGuide
HomeGuide prices these types installed. Angi does not give matching figures, so they are not used in the ranges above.
- Loose-fill
- $1,100 to $3,800
- Source: HomeGuide
- Spray foam
- $1,100 to $9,000
- Source: HomeGuide
- Reflective
- $550 to $3,300
- Source: HomeGuide
Price by attic size from HomeGuide
These figures show how attic size changes the price. They are not used in the ranges above.
- 500 square foot attic
- $500 to $2,000
- Source: HomeGuide
- 1,000 square foot attic
- $1,000 to $4,000
- Source: HomeGuide
- 2,000 square foot attic
- $2,000 to $8,000
- Source: HomeGuide
Removal and site prep
Each item is a separate price from one source. None is added to the estimate; ask whether a quote includes it.
- Removing old insulation
- $1 to $2 per square foot
- Source: HomeGuide
- Site prep, including removal and debris
- $150 to $900
- Source: Angi
Estimate your attic insulation
Choose an insulation type. Area level picks a part of the sourced range; it is not a local price.
Typical estimate
$2,800
Estimated range, not a quote
$2,050 to $3,600
Assumptions
- Installed base: Attic insulation, typical range, no size selected.
- Average area level uses low-to-typical and typical-to-high midpoints as bounds, with the sourced typical unchanged.
- No applicable extras included.
- Extras are added in full, and sourced installed ranges are treated as not including them.
- Labor rows are informational only and are not added to installed costs.
Where these numbers come from
The ranges come from two sources, Angi and HomeGuide. Their dates and scope notes are shown below. The checked date records when the dataset was reviewed, not a promise that prices are unchanged.
Angi
How Much Does Insulation Cost?Updated: October 6, 2026. Accessed: October 21, 2026.
Does not say whether per-project totals include labor; type figures are for professional installation
HomeGuide
How Much Does Attic Insulation Cost?Updated: January 13, 2026. Accessed: October 21, 2026.
Installed figures, labor and materials, for an attic floor of about 1,100 to 1,500 square feet
The low and high are the medians of the published bounds. For two sources, the median is the mean of the pair. Typical is the median of the source midpoints. Derived figures round to twenty-five-dollar steps below a thousand dollars and fifty-dollar steps at or above it, with exact halves rounded up. The estimator selects its base bounds, adds applicable extras in full and rounds the final totals.
How we calculateQuestions people ask
What is a typical attic insulation cost?
- The overall typical figure is $2,800, within $1,250 to $4,350. HomeGuide gives an overall average of $1,800.
Is blown-in or batt insulation cheaper?
- The combined range is $950 to $2,900 for blown-in and $1,050 to $3,150 for batt and roll. The two overlap, so compare quotes for your attic.
What does spray foam attic insulation cost?
- HomeGuide gives spray foam at $1,100 to $9,000, installed. It is not used in the ranges above.
How does attic size change the price?
- HomeGuide gives $500 to $2,000 for a small attic and $2,000 to $8,000 for a large one.
Does removing old insulation cost extra?
- It can. HomeGuide gives removal at $1 to $2 per square foot, and Angi gives site prep, including removal and debris, at $150 to $900.
Compare written quotes for the same insulation type and attic area, and ask whether removing old insulation, air sealing and cleanup are included. Keep the source dates beside the comparison.