Most R-value per dollar
Blown-In Insulation in Dickson, TN
Loose fill to R-38 over a sealed ceiling, or dense-packed into older walls.
- Free on-site estimates
- Written quotes with R-values area by area
- Crawl space moisture checked before we insulate
When Loose Fill Is the Better Buy
Blown-in insulation is loose cellulose or fiberglass delivered through a hose. Across an open attic floor it is usually the lowest-cost way to reach a high R-value, because it fills around joists, wiring and pipes. In older homes it is also how we fill empty walls without removing siding or drywall.
Cellulose or fiberglass
HomeGuide rates cellulose at R-3.1 to R-3.8 per inch and blown fiberglass at R-2.2 to R-2.9. Cellulose is denser and slows air a little better; fiberglass is lighter and does not absorb water. Either works at the right depth.
Dense-pack walls
For closed walls we drill one hole per stud bay and blow cellulose in at high density so it fills the cavity and resists settling, then patch the holes. We check wiring first.
Sealing first
Loose fill does not stop air. We seal the ceiling bypasses, insulate the hatch and set baffles before we blow. That is its own line on the quote.
Blown-In Work
Attics, walls and the sealing that comes first.
Attic top-ups
Fill added to reach R-38.
Dense-pack walls
Cellulose blown into closed walls and patched.
Air sealing
Bypasses sealed first.
Baffles
Soffit vents protected.
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) supply these national ranges. Depth, access, sealing and removal change the cost. After the visit, the written estimate is the price.
How Blown-In Work Goes
1. Inspect
Depth, wiring and leaks checked.
2. Quote
Depth, R-value and sealing itemized.
3. Seal
Bypasses and hatch sealed, baffles set.
4. Blow
Fill to depth with markers.
Why Choose Us for Blown-In Insulation
Sealed first
No fill over open leaks.
Wiring checked
Before any wall is filled.
Depth you can see
Rulers on the trusses.
Blown-In Insulation Questions
How much does blown-in insulation cost?
HomeGuide lists $1.00 to $2.80 per square foot and $900 to $3,600 for an attic. Fixr lists $1,750 to $5,500 for about 1,500 square feet.
Cellulose or fiberglass for my attic?
Both work. Cellulose slows air slightly better; fiberglass does not absorb moisture. We explain the trade-offs.
Will blown-in settle?
Loose fill settles slightly, so we blow to the settled depth for your target R-value.
Can you add blown-in over old insulation?
Yes, if it is dry and clean, after sealing.
Blown-In Insulation Service Areas
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Get a Blown-In Insulation Estimate
Ask us how much depth your attic is missing.