Depth for less
Blown-In Attic Insulation in Fayetteville, AR
The most economical way to bring a vented attic up to depth.
- Free on-site estimates
- Written quotes listing thickness and R-value by area
- Moisture and ventilation checked before we seal
The Simple, Affordable Attic Upgrade
Blown-in attic insulation is often the best value for a vented attic with an open floor. Loose cellulose or fiberglass is blown through a hose and settles around joists, wires and pipes. HomeGuide lists blown-in at about $1.00 to $2.80 per square foot, and $900 to $3,600 for a typical attic.
Seal first
Blown-in insulation slows heat but does not stop air. Before we add any, we seal the gaps in the attic floor: around lights, plumbing vents, wiring, chases and the hatch. Then the new insulation is not just filtering leaky air.
How much to add
For a Zone 4 attic, the Department of Energy suggests R-60 if it is empty, or about R-49 added over 3 to 4 inches. HomeGuide lists cellulose at R-3.1 to R-3.8 per inch and loose fiberglass at R-2.2 to R-2.9, so reaching those levels takes well over a foot of material. We install to the manufacturer's settled depth for the R-value on your quote and set depth markers.
Cellulose or fiberglass
Cellulose packs denser and resists air movement better. Fiberglass is lighter and does not absorb water. Both work well in a vented attic, and we will recommend one based on your attic and budget.
Keep the vents open
We install baffles at the eaves so soffit vents stay clear, and make sure bath fans vent outdoors, not into the attic. Get a free estimate
What This Covers
What blown-in attic work includes.
Attic floor sealing
Sealing penetrations and top plates first.
Baffles
Keeping soffit vents open.
Cellulose
Dense loose fill for good air resistance.
Fiberglass
Light loose fill that shrugs off moisture.
Depth markers
Rulers so you can see the installed depth.
Published Blown-In Insulation Costs
| Job | Range and source |
|---|---|
| Blown-in, per sq ft | $1.00 to $2.80 (HomeGuide); $1.65 to $3.80 (Fixr) |
| Attic | $900 to $3,600 (HomeGuide); $1,750 to $5,500 for about 1,500 sq ft (Fixr) |
| Exterior walls | $1,900 to $7,800, $1.10 to $3.70 per sq ft (HomeGuide); $2,000 to $4,000 (Fixr) |
| Dense-pack cellulose | $1.60 to $4.20 per sq ft (HomeGuide) |
| Fiberglass / cellulose | $1.65 to $2.60 / $1.75 to $3.80 per sq ft (Fixr) |
| Typical job | $800 to $3,000 (HomeGuide); $3,000 to $7,000 (Fixr) |
HomeGuide (November 2025) and Fixr (August 2025) national figures. Attic size, depth, access, air sealing and any removal change the cost. We quote after measuring, and the written estimate is what you pay.
How It Works
1. Measure
We check existing depth, ventilation and any problems.
2. Seal
Gaps in the attic floor get sealed.
3. Baffle
Vents are protected at the eaves.
4. Blow in
Insulation goes in to the depth on your quote.
5. Mark and clean
Depth markers placed, hoses removed, area cleaned.
Blown-In Attic Insulation Questions
How long does blown-in take?
Most attics are sealed and insulated in a day.
Can blown-in go over old insulation?
Yes, if the old insulation is dry and clean. We seal around it first.
Does blown-in settle?
A little. We install to the settled depth listed for your target R-value.
Is blown-in cheaper than foam?
Per square foot, usually by a wide margin, which is why it is the standard choice for vented attic floors.
Blown-In Attic Insulation Service Areas
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Get a Blown-In Attic Insulation Estimate
Thin attic insulation? Get a written blown-in quote.