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Florida Insulation Contractors — 2026

3 verified insulation businesses across 2 Florida cities. Contact pros directly — no middlemen, no lead fees.

Florida attics regularly hit 140°F in summer — and most homes built before 2010 have insulation rated for the wrong climate. The insulation companies below specialize in attic blow-in (R-30 to R-49), open and closed-cell spray foam, radiant barriers, knee-wall and crawlspace insulation, and full air sealing. Properly insulated FL homes cut AC bills 20–40% and last 5–8 years longer between system replacements.

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3 listings

Top-Rated Insulation (4.8★+ with 20+ reviews) (2)

Highly Rated Insulation (4.5★+) (1)

Frequently Asked Questions

How much does attic insulation cost in Florida?
Blown-in fiberglass or cellulose to R-30 (typical 1,800 sq ft attic): $1,500–$2,800. Upgrade to R-38: add $500–$900. Open-cell spray foam: $4,500–$8,500. Closed-cell spray foam (best for FL): $6,500–$13,500. Radiant barrier installation: $1,200–$2,800. Most projects qualify for utility company rebates.
What R-value insulation does Florida need?
Florida (Zone 1-2) attic minimum is R-30; the IECC code recommendation is R-38, and best practice for new builds is R-49. Walls in new construction need R-13 to R-15. Below-grade and crawlspaces don't matter much in Florida. Investing in attic insulation is the single highest-ROI energy upgrade for FL homes.
Should I get spray foam in Florida?
Closed-cell spray foam is the gold standard for Florida — it acts as insulation + air seal + vapor barrier. Cuts AC load 30-50% in older homes. Open-cell is cheaper but lets moisture pass through (acceptable in Florida only with proper attic ventilation). Spray foam is overkill for newer homes already at code R-30+.
What's a radiant barrier and do I need one in Florida?
Radiant barriers are aluminum sheets stapled to roof rafters that reflect 95% of radiant heat — drops attic temps 20–30°F in Florida summers. ROI is 3–6 years on most homes. Best installed during roof replacement or in new construction. Existing-home retrofit costs $1,200–$2,800 for a typical attic.
Do insulation contractors need a license in Florida?
Florida requires a Specialty Insulation Contractor license for jobs over $2,500 or anything requiring permits. Always verify liability insurance, workers' comp, and (for spray foam) IAQ training. DIY blown-in is possible but inhalation risk and uneven coverage make it a bad call for most homeowners.