Igloo Insulation LLC
ClaimTypical insulation services: Attic insulation, Spray foam, Blown-in insulation, +2 more
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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.
Insulation by City
All Insulation Listings in Florida
Top-Rated Insulation (4.8★+ with 20+ reviews) (2)
Insulation Plus of Tampa
ClaimTypical insulation services: Attic insulation, Spray foam, Blown-in insulation, +2 more
Highly Rated Insulation (4.5★+) (1)
I-Foam & Insulation Inc
ClaimTypical insulation services: Attic insulation, Spray foam, Blown-in insulation, +2 more
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Florida-Specific Insulation Considerations
What makes insulation different in Florida — salt air, humidity, hurricane code, and the permit + licensing quirks that catch out-of-state transplants off guard.
Attic R-value target is R-38
Florida building code requires R-30 attic insulation in new construction, but R-38 is the comfort-and-energy sweet spot. Older FL homes often have R-11 to R-19 — a blow-in upgrade typically pays back in 4-6 years.
Spray foam at the roof deck changes the math
Open-cell spray foam on the underside of the roof deck converts the attic into a conditioned space — AC ducts work dramatically better, and roof temperatures drop by 30-40°F. Expensive ($3-$6/sqft) but transformative.
Radiant barrier is a Florida special
Radiant-barrier OSB sheathing or a foil-faced underlayment reflects attic heat back out the roof. Modest benefit on its own (~5-10% AC savings) but stacks well with R-38 blown-in insulation.
Wall insulation is harder to fix
Most pre-2005 FL homes have basically no wall insulation — the rated "R-4 to R-7" CMU block walls. Retrofit foam injection exists but costs $3-$5/sqft and makes mold risk higher; weigh carefully.
Insulation Brand Comparisons
Not sure which brand to choose? Our side-by-side comparisons cover the top insulation brands for Florida homeowners.
Spray Foam Insulation vs Fiberglass Batt Insulation
For Florida attics, spray foam on the roof deck (conditioned attic) is the premium upgrade that genu…
Spray Foam Insulation vs Blown-In Insulation
Blown-in insulation is the cost-effective choice for standard Florida attic insulation upgrades — de…
Owens Corning vs CertainTeed
Both Owens Corning and CertainTeed produce excellent insulation products widely used in Florida. For…
Open Cell Spray Foam vs Closed Cell Spray Foam
Closed cell is the right choice for Florida's humidity — its vapor barrier prevents moisture infiltr…
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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.