Blown-In Insulation Cost in Boca Raton: 2026 Price Per Square Foot

The short answer on blown-in cost in Boca Raton

Blown-in insulation across Boca Raton, Delray Beach, and Boynton Beach runs $1.50–$4.00 per square foot installed, including air sealing. On a typical 2,000 sq ft attic, bringing the insulation from R-19 up to R-49 costs $3,000–$6,000.

That is roughly half the cost of a closed-cell spray foam retrofit on the same home — which is why blown-in is the default attic upgrade in the corridor when the attic is dry and the budget matters.

Cost per square foot

| Scope | Cost per sq ft | What it covers | |---|---|---| | Blown-in top-up (existing layer dry) | $1.50–$2.50 | Air sealing, baffles, blown-in to R-38 | | Full removal + re-insulate | $2.50–$4.00 | Vacuum out old, sanitize, air seal, baffles, blow to R-49 | | Radiant barrier add-on | $0.75–$1.25 | Foil under roof deck — included on most quotes |

Cost by attic size

| Attic size | Top-up to R-38 | Full removal + R-49 | |---|---|---| | 1,200 sq ft | $1,800–$3,000 | $3,000–$4,800 | | 1,800 sq ft | $2,700–$4,500 | $4,500–$7,200 | | 2,500 sq ft | $3,750–$6,250 | $6,250–$10,000 |

What actually changes the price

• Square footage — the biggest driver. We quote by the attic floor area.
• Target R-value — R-38 is the practical sweet spot; R-49 costs a little more and pays back if your ducts are in the attic.
• Existing insulation removal — if the old layer is water-stained or rodent-damaged, it comes out first. Removal adds $0.50–$1.00/sq ft.
• Attic access — tight crawl accesses add labor time.
• Air sealing — the step most cheap quotes skip. We seal every can light, plumbing penetration, and the hatch before any insulation goes in. This is what turns a top-up into a real fix.

The rebates most Boca homeowners miss

• Florida energy-efficiency tax credit — up to $1,200.
• FPL and utility rebates — often $300–$800 for documented air-sealing.
• Federal residential energy credit — 30% of cost up to $1,200 for insulation meeting IECC standards.

Stacked, these can cut your net cost by $1,500–$2,800 on a qualifying Boca project.

When blown-in is the right spend

Blown-in is the right call when your attic is dry, your ducts sit above the insulation (not in a conditioned attic), and you want the most R-value per dollar. If your ducts live in the attic or you want maximum performance, closed-cell spray foam is the better investment.

Not sure which you are? A free FLIR inspection answers it in 30 minutes.

What it costs in your city

We quote blown-in insulation across the whole corridor — see the dedicated city pages for Boca Raton, Delray Beach, Boynton Beach, West Palm Beach, and Parkland. Searching "blown in insulation near me"? Start on our near-me page.

Get an exact number

Every quote is itemized by area, depth, and add-ons — no blanket pricing. Use the instant quote tool for a 60-second estimate by ZIP, or book a free FLIR inspection for a documented, room-by-room proposal.

Call (561) 654-7698 — 5.0 stars on Google, local crew.

Frequently asked questions

How much does blown-in insulation cost in Boca Raton in 2026? Blown-in insulation in the Boca Raton corridor runs $1.50–$4.00 per square foot installed, including air sealing. A typical 2,000 sq ft attic costs $3,000–$6,000 to bring from R-19 up to R-49. Get an instant quote by ZIP for an exact number.

Is blown-in cheaper than spray foam in Boca Raton? Yes — roughly half the cost. A blown-in retrofit on a 2,000 sq ft Boca home runs $3,000–$6,000 vs $7,500–$12,000 for closed-cell spray foam. Blown-in is the right call for a dry vented attic; foam wins when your ducts live in the attic.

What changes the price of blown-in insulation? Attic square footage, target R-value (R-30 vs R-49), existing insulation removal, attic access, and air-sealing scope. Air sealing is the step that turns a top-up into a real fix — we include it on every quote.

Are there rebates for blown-in insulation in Florida? Yes. Florida energy-efficiency tax credits (up to $1,200), FPL utility rebates ($300–$800), and the federal residential energy credit (30% up to $1,200) can cut net cost by $1,500–$2,800 on a qualifying Boca project.