The fastest fix for a Cape Coral attic
Blown-in insulation fills every joist bay and irregular gap, settling into a continuous blanket across the attic floor. For most existing Cape Coral homes sitting at R-11 to R-19, it is the most cost-effective route up to the recommended R-49 to R-60.
Fiberglass or cellulose?
Blown-in fiberglass is light, non-combustible, and does not absorb moisture — a strong fit for humid Cape Coral attics. Cellulose is denser with slightly higher R per inch. We help you choose for your attic and budget.
Done right, not just dumped
Blowing to full depth without baffles chokes off Cape Coral soffit intake and creates a moisture trap — the most common defect we find in other crews' work. We install baffles, protect the hatch, and set depth rulers as documented verification.
Insulation costs in Cape Coral
Installed pricing depends on square footage, target R-value, attic access, and whether old material has to come out first. Here is where installed pricing generally lands in Lee County — and we itemize every quote so you can compare honestly.
| Material | Installed cost | R-value / inch | Service life |
|---|---|---|---|
| Blown-in fiberglass | $1.10–$2.00/sq ft | R-2.2–R-2.7 | 20–30 yrs |
| Fiberglass batts | $0.90–$2.10/sq ft | R-3.1–R-4.3 | 25+ yrs |
| Open-cell spray foam | $1.50–$3.20/sq ft | R-3.6–R-3.8 | 80+ yrs |
| Closed-cell spray foam | $2.40–$4.90/sq ft | R-6.0–R-7.0 | 80+ yrs |
| Insulation removal | $1.10–$2.90/sq ft | — | One-time |
Cape Coral is in Lee County — IECC climate zone 2A. The recommended attic target here is R-49 to R-60, roughly 15.5 to 19 inches of blown fiberglass at settled depth. Most pre-2010 Cape Coral homes sit at R-11 to R-19.
Blown-In Insulation FAQs for Cape Coral
How much does blown-in insulation cost in Cape Coral?
Blown-in fiberglass runs about $1.10 to $2.00 per square foot installed and cellulose about $1.20 to $2.40, depending on target depth, access, and removal.
How deep should it be in Cape Coral?
To reach R-49 to R-60 for Lee County, expect roughly 15.5 to 19 inches of settled blown fiberglass.
Can you blow over my existing insulation?
If it is dry and clean, often yes. If it is wet, matted, or rodent-damaged, we remove it first, air seal, then blow to depth.