Blown-in attic insulation cost in North Carolina for 1000 sq ft

Blown-in attic insulation in North Carolina

$1,735

1,000 ft² of attic floor · typical range $913 – $2,557

Typical total$1.74 per ft² of attic floor	$1,735
Range you should see in bidsthree bids on the same scope normally land inside this	$913 – $2,557
Labor portion45% of the job — this is the part that moves by state	$781
Material portion55% — bought at national prices	$954
Insulation Workers, Floor, Ceiling, and Wall pay in North Carolinaabout $21/hr · BLS OEWS May 2025, SOC 47-2131	$44,180/yr
U.S. mean for the same tradeSOC 47-2131	$54,740/yr
Versus the national priceNorth Carolina trade pay runs −19.3% against the U.S. mean	−$165

Notes

**Where the number comes from.** The national price for blown-in attic insulation is $1.90 per ft² of attic floor — blown-in insulation pricing published for 2026, $1.00–$2.80 per ft². Labor is about 45% of that. Insulation Workers, Floor, Ceiling, and Wall in North Carolina average $44,180 a year against a U.S. mean of $54,740 — a factor of 0.807 — so the labor half is scaled by that and the material half is not.
**What is in the price:** blown fiberglass or cellulose to about R-49, baffles at the eaves, and labor.
**What is not:** removing existing insulation, air sealing before the blow, and any knob-and-tube remediation. These are the lines that turn a $1,735 quote into a $2,169 invoice, so ask about each one before signing.
**Why state matters more than people expect.** Materials ship at national prices; crews do not move. North Carolina sits below the national mean by 19.3%, which lands on 45% of the job and moves the total by $165.
**Use this as a bid check, not a quote.** It prices an average job in an average condition. Steep access, a second story, a tear-off of two layers, or a crew booked out three months all move the real number, and none of them are in a per-unit average.

Blowing 1000 sq ft of attic in North Carolina

$1,735 is the typical figure, and bids on the same scope normally land between $913 and $2,557.

That is 1,000 ft² of attic floor at $1.74 each.

Why this is not the national number

The same job priced at the U.S. average comes to $1,900 — this one is $165 less.

The reason is one number, and it is a published one. Insulation Workers, Floor, Ceiling, and Wall in North Carolina average $44,180 a year against a U.S. mean of $54,740, from the Bureau of Labor Statistics OEWS release for May 2025, SOC 47-2131. That is roughly $21 an hour of trade pay, a factor of 0.807, or −19.3% against the national mean.

Labor is about 45% of this job. Material is the other 55%, and material does not care what state it is nailed down in — a pallet costs what a pallet costs. So only the labor half is scaled here, and the material half is left at national pricing.

That is the whole model, and it is deliberately simple enough to check: $781 of labor, $954 of material.

This is the trade where state matters least

Labor is 45% of a blow, the lowest of any job on these sites — the machine does the work and the bags cost what they cost. So the spread between the cheapest and dearest states is real but modest, and anyone quoting you double the figure above is not doing it because of local wages.

What is in this price

Blown fiberglass or cellulose to roughly R-49, baffles at the eaves so the soffit vents stay open, and labor.

What is not

Air sealing. Blowing insulation over unsealed top plates, wire penetrations and a leaking attic hatch buries the problem instead of fixing it, and it is the single most common way this money gets wasted. Sealing first costs a few hundred dollars and changes what the insulation is able to do.

Removal of existing insulation is separate, and so is knob-and-tube remediation if the house has it.

Depth is the thing to verify

R-49 in loose-fill is a depth, and the bag prints how many square feet it covers at each depth. Ask for the bag count and the target depth in writing, then check the depth markers after the crew leaves. Under-blowing is invisible from the hatch and is the most common shortfall in this trade.

How to use this against a real bid

Three quotes on identical scope should cluster. One well under $913 usually means something was left out of the scope rather than found cheaper — read what is excluded before reading the total. One well over $2,557 is either a harder job than average or a crew that does not want the work and priced accordingly.

The number above prices an average job in average condition. Access, story height, season, and how booked the crew is all move it, and none of those live in a per-unit average.

Nearby sizes

Attic Insulation Cost by State — And Why It Barely MovesInsulation is the one trade here where the state you live in barely changes the price. Labor is only 45% of a blow, so the whole country lands within 35% of $1,900.
Attic Insulation Removal Cost — When It Is Necessary and When It Is an UpsellRemoval roughly doubles the cost of an attic job. There are four situations that justify it, and being old is not one of them.
Blown-In Attic Insulation Cost per Square Foot — Priced by Depth, Not by AreaTwo quotes at the same dollars per square foot can differ by a third in insulation delivered. The number that matters is dollars per square foot at a stated R-value.
Cost to Insulate a House — Priced by Assembly, in the Order That PaysWhole-house insulation quotes hide the fact that the four assemblies pay back at wildly different rates. Done in the right order, the first third of the budget does most of the work.