Attic insulation cost in Rockford, IL
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (1,000 sq ft)
- $1,000 – $3,900
- Per sq ft
- $1 – $3.90
- before permit
- Versus US midpoint
- −2%
- US $2,500
- Rank of 300 metros
- #138
- 1 = most expensive
Local price for attic insulation in the Rockford area: $1,000 to $3,900 for 1,000 sq ft. The low end is a basic job on easy ground; the high end is a premium spec with harder access. The midpoint lands close to the US figure. Building materials run about 6% below the US average here (BEA goods price index 93.6).
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Estimated cost for 1,000 sq ft in Rockford, IL, standard level
$1,850 to $3,050
About $1.85 to $3.05 per sq ft before permits. Labor is about 39% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $1,100 | $1,900 |
| Labor | $780 | $1,100 |
| Permits and fees | $0 | $0 |
| Total | $1,850 | $3,050 |
Cost breakdown for 1,000 sq ft in Rockford, IL
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $470 | $1,500 | $2,550 | 61% |
| Labor | $530 | $950 | $1,350 | 39% |
| Permits and fees | $0 | $0 | $0 | 0% |
| Total | $1,000 | $2,450 | $3,900 | 100% |
What is behind the Rockford number
We price the labor side from BLS wage data for 2 trades: insulation workers, floor, ceiling and wall at 80%, construction laborers at 20%. Weighted together, Rockford wages are 1.06 times the national level. Labor makes up about 39% of the midpoint estimate (36% at national prices).
Materials are scaled with BEA's regional price parity for goods. Rockford is at 93.6 against 100 for the US, so a materials line of $1,600 nationally becomes $1,500 here (midpoint, 1,000 sq ft). Permits follow the all-items index of 92.2: $0 to $0.
Who does the work: Rockford trade wages
The labor line is built from BLS wage data, one trade at a time. This job draws on 2 trades. We compare each trade's local median with the US median, weight the ratios by how much of the job each trade does, and apply the blend to the national labor cost. For Rockford the blend is 1.06.
For insulation workers, floor, ceiling and wall (47-2131, weighted 80%) the local median is $23.91 an hour, which is in line with the national $23.62. The middle half of them earn between $23.17 and $27.62 an hour. BLS counts 40 of them working in the area, 2.9 for every 10,000 jobs (US: 2.9), so the local bench is about average.
For construction laborers (47-2061, weighted 20%) the local median is $28.07 an hour, which is 24% above the national $22.66. The middle half of them earn between $22.55 and $38.91 an hour. BLS counts 830 of them working in the area, 60.3 for every 10,000 jobs (US: 70.5), so the local bench is about average.
A quick sensitivity check: moving the lead trade (insulation workers, floor, ceiling and wall) from the median to the 75th percentile wage adds about $110 to the midpoint estimate; the 25th percentile takes off about $25. That is a swing of roughly 0.9% to 4.6% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Rockford has 137,650 jobs in total (BLS, May 2025), ranking 161st by size among the 300 metros on this site.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Insulation workers, floor, ceiling and wall (47-2131) | 80% | $23.17 | $23.91 | $27.62 | $23.62 | 1.01 | metro |
| Construction laborers (47-2061) | 20% | $22.55 | $28.07 | $38.91 | $22.66 | 1.24 | metro |
| Blended | 100% | 1.06 | |||||
Related projects, priced for Rockford
Jobs that often go together with attic insulation are priced below at their usual sizes, using the same Rockford wage and price inputs. Compared with national midpoints, roof replacement comes out highest (+9%) and window replacement lowest (−1%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Roof replacement | 2,000 sq ft of roof | $6,800 – $13,400 | +9% |
| Metal roof | 2,000 sq ft of roof | $11,600 – $34,700 | +8% |
| Vinyl siding | 2,100 sq ft of wall | $9,050 – $27,200 | +8% |
| Window replacement | 10 windows | $4,500 – $14,800 | −1% |
| Gutters | 160 linear ft | $1,400 – $4,350 | +5% |
Cost by quality level and size in Rockford
The cited range is split into basic, standard and premium bands, then scaled to Rockford. Bands overlap, because plenty of standard jobs cost as much as a light premium one. Sizes run from small attic (600 sq ft) to large attic (1,800 sq ft).
Basic
$1,000 to $2,150
Blown-in fiberglass or cellulose to code R-value
Standard
$1,850 to $3,050
Higher R-value with air sealing around fixtures
Premium
$2,750 to $3,900
Spray foam or heavy air sealing, hard-to-reach attic
| Size | Basic | Standard | Premium |
|---|---|---|---|
| small attic (600 sq ft) | $600 – $1,300 | $1,100 – $1,800 | $1,650 – $2,350 |
| average attic (1,000 sq ft) | $1,000 – $2,150 | $1,850 – $3,050 | $2,750 – $3,900 |
| large attic (1,800 sq ft) | $1,800 – $3,900 | $3,350 – $5,450 | $4,950 – $7,050 |
Specs and site conditions that change a Rockford bid
Air sealing and fixture damming
Sealing gaps and damming around recessed lights are part of what moves the price within a type.
Removing old insulation
Old, wet or pest-damaged insulation has to come out first, at extra cost.
Type of insulation
Blown-in is $0.90-$2.40 per sq ft and loose-fill is $1.00-$2.50 installed; spray foam costs more (HomeGuide).
How Rockford compares
Of the five closest metros, 3 are cheaper than Rockford. Racine is the lowest at about $2,450 (midpoint, 1,000 sq ft), 70 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Rockford, ILthis page | $1,000 – $3,900 | $2,450 | |
| Janesville, WI25 miles | $990 – $3,900 | $2,450 | level |
| Madison, WI60 miles | $990 – $3,900 | $2,450 | level |
| Kenosha, WI60 miles | $1,050 – $4,200 | $2,600 | +7% |
| Racine, WI70 miles | $990 – $3,900 | $2,450 | −1% |
| Milwaukee, WI70 miles | $1,000 – $3,900 | $2,450 | level |
| Illinois (statewide) | $1,100 – $4,250 | $2,650 | +9% |
| United States | $1,000 – $4,000 | $2,500 | +2% |
Out of the 300 metros we cover, Rockford ranks #138 for the cost of this job (#1 is the most expensive). Statewide, Rockford is 8% below the Illinois figure.
Elsewhere in Illinois
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Chicago, IL | 4,513,280 jobs | $1,150 – $4,500 | $2,800 | +15% |
| Peoria, IL | 166,020 jobs | $1,050 – $4,000 | $2,500 | +3% |
| Champaign, IL | 105,500 jobs | $1,050 – $4,000 | $2,500 | +2% |
| Springfield, IL | 100,810 jobs | $1,050 – $4,000 | $2,500 | +2% |
| Bloomington, IL | 88,110 jobs | $1,050 – $4,000 | $2,500 | +2% |
Metros of a similar size
Big cities and small ones price differently, so here is Rockford against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Cedar Rapids, IA | 139,260 jobs | $1,050 – $4,000 | $2,500 | +2% |
| Evansville, IN | 135,250 jobs | $1,050 – $4,000 | $2,500 | +3% |
| Huntington, WV | 140,740 jobs | $870 – $3,600 | $2,250 | −9% |
| Flint, MI | 135,040 jobs | $970 – $3,850 | $2,400 | −2% |
Get 3 local quotes
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Detailed attic insulation report for Rockford, IL, $9
The report lays out the attic insulation numbers for Rockford, IL line by line, with the local wage and price inputs, permit and timing notes, a quote comparison sheet and the full method. Save your estimate above, preview page 1 free, and unlock the full report for $9 one-time, or get every report with CostLocal Pro.
Attic insulation in Rockford: your questions
+How much does it cost to insulate an attic in Rockford?
For 1,000 sq ft, expect $1,000 to $3,900 in the Rockford area. A standard-spec job lands at $1,850 to $3,050. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for attic insulation in Rockford?
About $1 to $3.90 per sq ft for materials and labor, plus $0 to $0 for the permit if one is needed. The US range is $1 to $4.
+Is attic insulation cheaper in Rockford or Janesville?
Janesville is 25 miles away. The midpoint for 1,000 sq ft there is $2,450, which is 0% less than Rockford ($2,450). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Rockford?
About 39% at the midpoint, or $950 out of $2,450. Materials are 61% and permits 0%. Nationally, labor is 36%.
+What would average attic (1,000 sq ft) cost in Rockford?
$1,000 to $3,900. Pick a different size in the estimator above to get your own number.
+Does attic insulation need a permit in Rockford?
Often, but rules are set by your city or county building office, so call before you hire. Budget $0 to $0 for fees in the Rockford area (our national range of $0 to $0 scaled by the local price level).
+Is Rockford expensive for attic insulation compared with the rest of Illinois?
Rockford is 8% below the Illinois statewide estimate ($2,650 at the midpoint). We cover 6 metros in Illinois; see the state page to compare them.
+What do insulation workers, floor, ceiling and wall earn in Rockford?
The BLS median is $23.91 an hour in the Rockford area, compared with $23.62 nationally. The 25th to 75th percentile range is $23.17 to $27.62.
+What do basic and premium attic insulation work cost in Rockford?
For 1,000 sq ft, basic work runs $1,000 to $2,150 and premium work $2,750 to $3,900. Basic means: blown-in fiberglass or cellulose to code R-value. Premium means: spray foam or heavy air sealing, hard-to-reach attic.
Attic insulation near Rockford
Where these numbers come from
Base prices are national ranges from the sources below. We scale labor by local BLS wages, materials by BEA goods prices and permits by the BEA all-items price level. Full method on the methodology page.
- HomeGuide: How Much Does Attic Insulation Cost? (2026) (accessed November 4, 2026)
- BLS Occupational Employment and Wage Statistics, May 2025
- BEA Regional Price Parities, 2024
Note on derived figures: Materials = installed price minus HomeGuide's $0.50-$1.30 per sq ft insulation labor, matched low-to-low and high-to-high.