How much does spray foam insulation cost in Boca Raton?

Most Boca Raton homes run $3,500–$9,500 depending on square footage and scope. We give an itemized instant quote by ZIP code, and most homeowners recover the cost in 3–5 years on cooling savings.

Which areas does Cardinal Insulation serve?

We serve Boca Raton, Delray Beach, and Boynton Beach, FL — the entire tri-city corridor from the Boca inlet to Boynton's western estates.

How is Cardinal different from other insulation companies?

We run a 10-point inspection the industry skips, use local crews, quote same day, and back every seal with a lifetime workmanship warranty with FLIR proof reports.

Will spray foam lower my FPL bill?

Yes. Our sealed homes average a 37% cooling-cost reduction. Closed-cell foam plus a radiant barrier reflects up to 97% of radiant heat gain.

How fast can you inspect my home?

Same-week — usually within 3–5 days, often faster. Use the Schedule Inspection button to grab a real-time slot.

Do you work on new construction and existing homes?

Both. We engineer thermal packages for new builds and retrofit existing homes across Boca, Delray, and Boynton.

Is spray foam safe for Florida humidity and coastal homes?

Yes. Closed-cell foam acts as a moisture barrier and structural reinforcement, ideal for salt-air coastal environments.

Royal Palm Beach, FL · South Florida · Zone 2A

Attic Insulation in Royal Palm Beach, Florida

The attic is where South Florida homes lose the most conditioned air. Cardinal engineers attic insulation packages — spray foam, radiant barriers, and blown-in — that seal the thermal envelope and cut cooling costs by up to 40%. We start every job with a FLIR inspection to find exactly where your money is leaking.

(561) 654-7698

Attic Insulation for Royal Palm Beach Properties

attic insulation is the workhorse of Florida attic retrofits. For Royal Palm Beach properties, this is frequently the right specification — but we will tell you plainly when it is not, and when a less expensive approach delivers the same outcome.

Royal Palm Beach sits in South Florida, where the recommended attic target is R-38 to R-49. That number, along with where your ductwork runs and what condition the existing assembly is in, is what determines the right specification for your property.

Attic Insulation at a glance

R-value: R-30 (code minimum) · R-38 to R-49 recommended for South Florida
Installed cost: $1,500 – $9,500 depending on method and scope
Service life: 20–80+ years depending on material
Available in: Royal Palm Beach and throughout the surrounding area

Call (561) 654-7698

Types and Methods

Spray foam attic insulation

Closed-cell or open-cell foam applied to the roof deck, bringing the attic into the conditioned envelope. This is the highest-performance option — it stops ductwork from running through 140°F air and delivers the largest cooling-cost reduction. It costs more but lasts the life of the home.

Blown-in attic insulation

Fiberglass or cellulose blown to a uniform depth across the attic floor. The most affordable way to reach code R-30 or higher. It fills gaps and voids that batts miss but does not air-seal — we pair it with air sealing for the best result.

Radiant barrier + blown-in

A radiant barrier on the roof deck paired with blown-in on the attic floor. The barrier reflects 97% of radiant heat gain while the blown-in resists conductive heat transfer — a layered defense at a mid-range price point.

Every attic insulation job starts with a FLIR inspection. If we find roof leaks, blocked ventilation, or moisture-damaged insulation, those get corrected first — burying a moisture problem under fresh insulation only hides it and accelerates the damage.

Benefits for Royal Palm Beach Property Owners

Stops the #1 source of cooling loss in Florida homes.
FLIR-mapped — we find and seal every leak before and after.
Spray foam, radiant barrier, or blown-in — engineered to your home.
Cuts cooling costs up to 40% in sealed attics.
Reduces AC runtime and extends equipment lifespan.

Best Applications

Existing vented attics with thin or settled insulation
Homes with high FPL bills and hot second floors
Attics with ductwork running through 140°F air
Retrofits where the attic floor is accessible
New construction aiming for above-code performance

How We Install It in Royal Palm Beach

1FLIR-scan the attic to map every leak, void, and thermal bridge
2Air-seal top plates, can lights, chases, and the attic hatch
3Remove contaminated or water-damaged insulation if present
4Install the specified insulation method to the target R-value
5Install depth-verification rulers or FLIR-document the coverage
6Verify ventilation paths are maintained or intentionally sealed
7FLIR-scan to verify the seal and walk the job with you

Cost and R-Value Reference

Cost Reference

Florida insulation cost & R-value reference.

Typical installed costs across South Florida by material. Pricing varies with access, square footage, and site conditions — every Cardinal quote itemizes material, R-value, installed inches, and square footage.

Material	Installed cost	R-value / inch	Service life
Blown-in fiberglass	$1.10 – $2.00 / sq ft	R-3.2 – R-3.8 / in	20–30 years
Blown-in cellulose	$1.20 – $2.40 / sq ft	R-3.2 – R-3.8 / in	20–30 years
Fiberglass batts	$0.90 – $2.10 / sq ft	R-3.1 – R-4.3 / in	25+ years
Mineral wool	$1.60 – $3.40 / sq ft	R-3.0 – R-4.3 / in	50+ years
Open-cell spray foam	$1.50 – $3.20 / sq ft	R-3.6 – R-3.8 / in	80+ years
Closed-cell spray foam	$2.40 – $4.90 / sq ft	R-6.0 – R-7.0 / in	80+ years
Rigid foam board	$1.40 – $3.80 / sq ft	R-3.8 – R-6.5 / in	50+ years
Radiant barrier	$0.55 – $1.90 / sq ft	Reflective (no R)	25+ years
Duct sealing + R-8 wrap	$800 – $3,500 / system	R-8 (duct)	15–25 years
Insulation removal	$1.10 – $2.90 / sq ft	—	One-time

Pricing reflects typical Florida installed costs and varies with access, square footage, and site conditions. Source: U.S. Department of Energy insulation guidance, Florida Building Code R402, and IECC climate zone 2A requirements.

Pricing reflects typical Florida installed costs and varies with access, square footage and site conditions.

FAQs

Attic Insulation FAQs — Royal Palm Beach

Florida code requires R-30 minimum, but we recommend R-38+ for South Florida's cooling load. With spray foam on the roof deck, the attic becomes conditioned space and the effective R-value jumps dramatically — we spec this per home.

Blown-in attic insulation runs $1,500–$4,000. Spray foam attic insulation runs $3,500–$9,500 but delivers far higher performance and air sealing. We quote both options instantly by ZIP code.

Often yes — if it's compressed, contaminated, or moisture-damaged. We inspect with FLIR first and recommend removal only when it actually improves the outcome. Never an upsell for its own sake.