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.

Lake Worth Beach, FL · South Florida · Zone 2A

Blown-In Insulation in Lake Worth Beach, Florida

Blown-in insulation is the cost-effective way to top up attic R-value fast. Cardinal blows fiberglass or cellulose to a uniform depth across the attic floor, filling gaps and voids that batts leave behind. It's the right call when you need code-compliant R-value at the lowest installed cost.

(561) 654-7698

Blown-In Insulation for Lake Worth Beach Properties

blown-in insulation is the workhorse of Florida attic retrofits. For Lake Worth 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.

Lake Worth 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.

Blown-In Insulation at a glance

R-value: R-3.2 to R-3.8 per inch (fiberglass) / R-3.2 to R-3.8 per inch (cellulose)
Installed cost: $1.10 – $2.40 per sq ft installed at R-38 to R-49
Service life: 20–30 years before meaningful settling
Available in: Lake Worth Beach and throughout the surrounding area

Call (561) 654-7698

Types and Methods

Loose-fill fiberglass

Spun glass fibers, typically 30–50% recycled content, blown dry through a hose. It will not absorb water, holds its R-value in humid conditions, is naturally non-combustible and does not settle much beyond the first year. This is our default for most Florida attics.

Cellulose

Ground recycled paper treated with borate for fire and pest resistance. It has a higher density, which gives it slightly better resistance to air movement and better sound damping. Borate treatment also discourages roaches and silverfish. It does absorb moisture, so we only use it in attics with a sound roof and verified ventilation.

Dense-pack retrofit

For existing closed walls, we drill small access holes, pack the cavity to roughly 3.5 pounds per cubic foot so it cannot settle, then patch and finish. It is the only practical way to insulate a finished wall without opening it up.

Loose fill needs a dry attic. If we find roof leaks, blocked soffit vents, or bathroom fans dumping moist air into the attic, those get corrected first — burying a moisture problem under fresh insulation only hides it. We also never bury non-IC-rated recessed cans or gas flues.

Benefits for Lake Worth Beach Property Owners

Lowest installed cost per R-value of any insulation.
Fills gaps and voids that batt insulation misses.
Fast installation — most attics done in a single day.
Available in fiberglass or cellulose to match the application.
Top up existing insulation to meet Florida code R-30+.

Best Applications

Existing vented attics
Irregular joist bays and odd framing
Topping up thin or flattened insulation
Retrofit wall cavities via dense-pack
Budget-driven energy upgrades

How We Install It in Lake Worth Beach

1Measure existing depth and calculate the inches needed to reach the target R-value
2Air-seal top plates, can lights, chases and the attic hatch before any material goes down
3Install baffles at every soffit vent so the fill cannot block intake airflow
4Build dams around the hatch, recessed lighting and any heat-producing equipment
5Blow to depth in overlapping passes, working back toward the access point
6Set depth-verification rulers across the attic as documented proof of coverage
7Vacuum and clean the work path, then walk the finished 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

Blown-In Insulation FAQs — Lake Worth Beach

Blown-in attic insulation typically runs $1,500–$4,000 depending on square footage and target R-value. It's the most affordable way to reach Florida code R-30. Get an instant quote by ZIP code.

Fiblass blown-in is moisture-resistant and won't settle as much — our default for South Florida attics. Cellulose is denser and more fire-resistant but can hold moisture. We recommend per home after a FLIR inspection.

Properly installed blown-in fiberglass lasts 80+ years with minimal settling. Cellulose can settle 20% over time and may need topping up. We over-spec depth to account for any settling.