How Much Does Blown-In Insulation Cost?
The full 2026 price guide for blown-in attic insulation across the Boca-to-Parkland corridor — cost per square foot by R-value, cost by attic size, the six factors that move your quote, and city-by-city pricing. No call required.
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Itemized pricing by zone, back to you within the hour. No call required.
Honest pricing. By the number.
Blown-in attic insulation priced by target R-value and attic size. These are real installed ranges across the corridor — every quote is itemized, no call required.
| R-Value | Depth | Cost / sq ft | 1,500 sq ft attic | 2,500 sq ft attic |
|---|---|---|---|---|
| R-30 | 10–13" | $1.00–$1.50 | $1,500–$2,250 | $2,500–$3,750 |
| R-38 | 13–17" | $1.20–$1.80 | $1,800–$2,700 | $3,000–$4,500 |
| R-49 | 17–22" | $1.50–$2.20 | $2,250–$3,300 | $3,750–$5,500 |
Ranges reflect installed fiberglass blown-in across the corridor. Cellulose runs ~10–20% more. Every quote is itemized by ZIP code and square footage — no call required.
What actually moves your quote.
Attic square footage
The biggest driver. Blown-in is priced per square foot of attic floor — larger attics cost more total but less per sq ft.
Target R-value
R-30 (code min) costs less; R-38 (recommended) and R-49 (max efficiency) need more material and depth.
Material — fiberglass vs cellulose
Fiberglass (ProPink L77) is our default — moisture-resistant, settles less. Cellulose is denser and more fire-resistant but runs ~10–20% more.
Top-up vs full blow
Topping up an existing attic costs less than a full blow from scratch. We inspect with FLIR first to confirm existing material is clean and dry.
Access & difficulty
Steep pitches, low clearance, or multiple attic zones add labor. Most standard attics carry no upcharge.
Add-ons
Insulation removal ($1.50–$4/sqft if contaminated), air-sealing ($600–$2,500), or a radiant barrier pairing ($1,200–$3,500). Always itemized up front.
Every city. Every ZIP. Sealed.
A dedicated blown-in insulation page for every city in the Cardinal corridor — neighborhoods, ZIPs, pricing, R-value guides, and FLIR-proof before/afters for each.
Blown-in attic insulation to Florida code R-38 across Boca Raton — ZIPs 33432–33496. Neighborhoods, pricing, and FLIR proof.
View Boca Raton pageBlown-in attic insulation to Florida code R-38 across West Boca Raton — ZIPs 33433–33496. Neighborhoods, pricing, and FLIR proof.
View West Boca Raton pageBlown-in attic insulation to Florida code R-38 across Delray Beach — ZIPs 33444–33484. Neighborhoods, pricing, and FLIR proof.
View Delray Beach pageBlown-in attic insulation to Florida code R-38 across Boynton Beach — ZIPs 33435–33472. Neighborhoods, pricing, and FLIR proof.
View Boynton Beach pageBlown-in attic insulation to Florida code R-38 across Parkland — ZIPs 33067–33076. Neighborhoods, pricing, and FLIR proof.
View Parkland pageBlown-in attic insulation to Florida code R-38 across Deerfield Beach — ZIPs 33441–33442. Neighborhoods, pricing, and FLIR proof.
View Deerfield Beach pageBlown-in attic insulation to Florida code R-38 across West Palm Beach — ZIPs 33401–33407. Neighborhoods, pricing, and FLIR proof.
View West Palm Beach pageBlown-in attic insulation to Florida code R-38 across Pompano Beach — ZIPs 33062–33071. Neighborhoods, pricing, and FLIR proof.
View Pompano Beach pageBlown-in attic insulation to Florida code R-38 across Fort Lauderdale — ZIPs 33301–33316. Neighborhoods, pricing, and FLIR proof.
View Fort Lauderdale pageBlown-in attic insulation to Florida code R-38 across Coral Springs — ZIPs 33065–33077. Neighborhoods, pricing, and FLIR proof.
View Coral Springs pageBlown-in attic insulation to Florida code R-38 across Hollywood — ZIPs 33019–33025. Neighborhoods, pricing, and FLIR proof.
View Hollywood pageThe questions Boca, Delray & Boynton actually ask.
Blown-in attic insulation in South Florida typically runs $1,500–$4,500 for a single-family attic to R-38, depending on square footage, target R-value, material, and whether it's a top-up or full blow. Get an instant itemized quote by ZIP code — no call required.
Blown-in insulation runs $1.00–$2.20 per square foot installed. Fiberglass blown-in runs $1.00–$1.80/sq ft; cellulose runs $1.20–$2.20/sq ft. The per-square-foot price drops slightly on larger attics.
Yes — significantly. Blown-in runs $1,500–$4,500 vs spray foam at $3,500–$9,500 for a typical attic. Blown-in is the lowest installed cost per R-value of any insulation. Spray foam costs more but air-seals and delivers higher R-value per inch.
Topping up an existing attic to R-38 typically runs $1,200–$3,000 depending on existing depth and target R-value. We inspect first with FLIR to confirm the existing material is clean and dry before adding depth — we never blow over contaminated or wet insulation.
Yes. Most South Florida homeowners recover the cost in 3–5 years on FPL cooling savings alone. Topping an under-insulated attic to R-38 cuts cooling costs 15–25%; paired with a radiant barrier, savings reach up to 37%.
Cellulose runs about 10–20% more than fiberglass per square foot. Fiberglass (Owens Corning ProPink L77) is our default for humid South Florida attics — it's moisture-resistant and settles less. Cellulose is denser and more fire-resistant but can hold moisture, so we recommend it per home after a free FLIR inspection.
The only add-ons are insulation removal (if the existing material is wet or contaminated — $1.50–$4/sq ft), air-sealing before the blow ($600–$2,500), and a radiant barrier pairing ($1,200–$3,500). Every quote is itemized up front — no surprise charges, ever.
Enter your ZIP and project type in our instant quote tool — you'll get an itemized price by attic size and target R-value in 60 seconds, no call required. For a fixed quote, schedule a free FLIR inspection and we'll confirm the exact scope on site.
Get your exact price in 60 seconds.
Itemized by ZIP and attic size. No call required.
Serving the Boca–Delray–Boynton corridor.
From the Boca inlet to Boynton's western estates — every hot zone below is a home we sealed this year. This is our local service area.
