Attic insulation cost in Columbia, SC
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (1,000 sq ft)
- $990 – $3,900
- Per sq ft
- $1 – $3.90
- before permit
- Versus US midpoint
- −2%
- US $2,500
- Rank of 300 metros
- #140
- 1 = most expensive
If you want to insulate an attic in Columbia, plan on $990 to $3,900 for 1,000 sq ft, all in. Per sq ft, that is $1 to $3.90 for materials and labor, with the permit on top. The local midpoint lands close to the national one. Building materials run about 4% below the US average here (BEA goods price index 96.3).
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Estimated cost for 1,000 sq ft in Columbia, SC, standard level
$1,850 to $3,050
About $1.85 to $3.05 per sq ft before permits. Labor is about 37% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $1,100 | $1,950 |
| Labor | $750 | $1,050 |
| Permits and fees | $0 | $0 |
| Total | $1,850 | $3,050 |
Cost breakdown for 1,000 sq ft in Columbia, SC
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $480 | $1,550 | $2,600 | 63% |
| Labor | $500 | $910 | $1,300 | 37% |
| Permits and fees | $0 | $0 | $0 | 0% |
| Total | $990 | $2,450 | $3,900 | 100% |
Why Columbia prices look the way they do
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, Columbia wages are 1.01 times the national level. Labor makes up about 37% of the midpoint estimate (36% at national prices).
On the materials line, the BEA goods price index for the Columbia metro is 96.3 (US = 100). The midpoint materials bill for 1,000 sq ft comes to $1,550, compared with $1,600 at national prices. Permit and inspection fees are scaled by the broader index (93.7) and land at $0 to $0.
Columbia labor market for attic insulation
Wages are the part of this estimate that changes most from town to town. 2 trades carry the job here, and each is compared with its US median. The weighted result for Columbia is 1.01 times the national level.
Insulation workers, floor, ceiling and wall (47-2131), 80% of the weighting: a median of $24.40 an hour, 3% above the US median of $23.62. The middle half of them earn between $22.28 and $29.67 an hour. About 110 work in the metro. That is 2.8 per 10,000 jobs, compared with 2.9 nationally, so the supply of crews looks typical.
Construction laborers (47-2061), 20% of the weighting: a median of $20.49 an hour, 10% below the US median of $22.66. The middle half of them earn between $17.50 and $23.15 an hour. About 2,610 work in the metro. That is 66.2 per 10,000 jobs, compared with 70.5 nationally, so the supply of crews looks typical.
Quotes come from real crews, not medians. If the insulation workers, floor, ceiling and wall on your job are paid at the 75th percentile ($29.67 an hour) instead of the median, the labor line grows by about $160. At the 25th percentile ($22.28) it shrinks by about $65. The total moves by 6.6% or 2.6%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 394,200 jobs in the Columbia area. That makes it the 65th largest of the 300 metros we cover, with 0.25% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Insulation workers, floor, ceiling and wall (47-2131) | 80% | $22.28 | $24.40 | $29.67 | $23.62 | 1.03 | metro |
| Construction laborers (47-2061) | 20% | $17.50 | $20.49 | $23.15 | $22.66 | 0.90 | metro |
| Blended | 100% | 1.01 | |||||
Columbia against nearby metros and the rest of South Carolina
Of the five closest metros, all are cheaper than Columbia. Charlotte is the lowest at about $2,350 (midpoint, 1,000 sq ft), 75 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Columbia, SCthis page | $990 – $3,900 | $2,450 | |
| Augusta, GA70 miles | $950 – $3,850 | $2,400 | −2% |
| Spartanburg, SC70 miles | $950 – $3,850 | $2,400 | −2% |
| Florence, SC70 miles | $960 – $3,850 | $2,400 | −2% |
| Charlotte, NC75 miles | $940 – $3,800 | $2,350 | −3% |
| Greenville, SC90 miles | $960 – $3,850 | $2,400 | −2% |
| South Carolina (statewide) | $960 – $3,850 | $2,400 | −2% |
| United States | $1,000 – $4,000 | $2,500 | +2% |
Across 300 US metros, Columbia comes in at #140 from the top. The priciest is San Francisco, CA at $3,150; the cheapest is Morgantown, WV at $2,250 (midpoints, 1,000 sq ft). Statewide, Columbia is 2% above the South Carolina figure.
Other South Carolina metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Greenville, SC | 434,900 jobs | $960 – $3,850 | $2,400 | −2% |
| Charleston, SC | 394,170 jobs | $900 – $3,700 | $2,300 | −6% |
| Spartanburg, SC | 165,150 jobs | $950 – $3,850 | $2,400 | −2% |
| Myrtle Beach, SC | 146,260 jobs | $950 – $3,800 | $2,400 | −3% |
| Florence, SC | 89,060 jobs | $960 – $3,850 | $2,400 | −2% |
| Hilton Head, SC | 81,920 jobs | $960 – $3,850 | $2,400 | −2% |
Cities with a workforce like Columbia's
Big cities and small ones price differently, so here is Columbia against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Des Moines, IA | 404,130 jobs | $1,150 – $4,300 | $2,700 | +11% |
| Charleston, SC | 394,170 jobs | $900 – $3,700 | $2,300 | −6% |
| Bridgeport, CT | 404,180 jobs | $1,000 – $4,000 | $2,500 | +2% |
| Boise, ID | 391,790 jobs | $920 – $3,750 | $2,350 | −5% |
Cost by quality level and size in Columbia
Three bands are cut from the same cited range and localized for Columbia wages and prices. They overlap on purpose: a good standard job and a modest premium job can cost the same. The grid below prices the same bands at 3 common sizes.
Basic
$990 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) | $590 – $1,300 | $1,100 – $1,800 | $1,650 – $2,350 |
| average attic (1,000 sq ft) | $990 – $2,150 | $1,850 – $3,050 | $2,750 – $3,900 |
| large attic (1,800 sq ft) | $1,750 – $3,900 | $3,350 – $5,450 | $4,950 – $7,050 |
Why two Columbia quotes can differ
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).
What nearby projects cost in Columbia
Because every project leans on different trades, Columbia's wage level does not move all prices equally. Against the US midpoint, window replacement runs −6% and roof replacement −13%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Roof replacement | 2,000 sq ft of roof | $5,250 – $11,000 | −13% |
| Metal roof | 2,000 sq ft of roof | $8,600 – $29,000 | −12% |
| Vinyl siding | 2,100 sq ft of wall | $7,550 – $22,600 | −10% |
| Window replacement | 10 windows | $4,150 – $14,100 | −6% |
| Gutters | 160 linear ft | $1,150 – $3,850 | −9% |
Get 3 local quotes
Tell us about the job and we will try to connect you with up to three local contractors for written quotes. It is free and you are under no obligation to hire. Your estimate of $1,850 to $3,050 for Columbia, SC is attached.
A detailed PDF report of this estimate, $9
The report lays out the attic insulation numbers for Columbia, SC 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 Columbia: your questions
+How much does it cost to insulate an attic in Columbia?
For 1,000 sq ft, expect $990 to $3,900 in the Columbia 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 Columbia?
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 Columbia or Augusta?
Augusta is 70 miles away. The midpoint for 1,000 sq ft there is $2,400, which is 2% less than Columbia ($2,450). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Columbia?
About 37% at the midpoint, or $910 out of $2,450. Materials are 63% and permits 0%. Nationally, labor is 36%.
+What would average attic (1,000 sq ft) cost in Columbia?
$990 to $3,900. Pick a different size in the estimator above to get your own number.
+Does attic insulation need a permit in Columbia?
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 Columbia area (our national range of $0 to $0 scaled by the local price level).
+Is Columbia expensive for attic insulation compared with the rest of South Carolina?
Columbia is 2% above the South Carolina statewide estimate ($2,400 at the midpoint). We cover 7 metros in South Carolina; see the state page to compare them.
+What do insulation workers, floor, ceiling and wall earn in Columbia?
The BLS median is $24.40 an hour in the Columbia area, compared with $23.62 nationally. The 25th to 75th percentile range is $22.28 to $29.67.
+What do basic and premium attic insulation work cost in Columbia?
For 1,000 sq ft, basic work runs $990 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 Columbia
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.