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.

Stuart, FL · Martin County · Zone 2A

Fiberglass Batt Insulation in Stuart, Florida

Fiberglass batts remain the most cost-effective way to insulate accessible framing — open wall cavities, floor joists, and knee walls where blown-in or foam can't reach. Cardinal installs faced and unfaced fiberglass batts to code R-value across Boca Raton, Delray Beach, Boynton Beach, West Palm Beach, and Parkland, cut and fit tight so there are no gaps, voids, or compression that kill R-value.

(561) 654-7698

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Itemized pricing by zone, back to you within the hour. No call required.

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Owens Corning Certified Installer

ProPink fiberglass, installed to manufacturer spec

FLIR-Certified Thermographers

Before-and-after infrared proof on every job

Licensed & Insured — Florida

Local crews, never subcontracted

Lifetime Workmanship Warranty

Transferable to the next owner

Fiberglass Batt Insulation for Stuart Properties

fiberglass batt insulation is the workhorse of Florida attic retrofits. For Stuart 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.

Stuart 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.

Fiberglass Batt Insulation at a glance

R-value: R-3.1 to R-4.3 per inch · R-13 to R-30 per batt
Installed cost: $0.90 – $2.10 per sq ft installed
Service life: 25+ years
Available in: Stuart and throughout the surrounding area

Call (561) 654-7698

Types and Methods

Faced fiberglass batts

Fiberglass batts with a kraft paper or foil vapor retarder on one side. The facing goes against the warm side of the cavity — useful in humid South Florida walls where vapor control matters. Available in R-13 to R-30 for standard wall and floor framing.

Unfaced fiberglass batts

Fiberglass batts with no vapor retarder, used when a separate vapor barrier exists or in interior partitions for sound control. We install them in interior walls, floors between levels, and knee walls where vapor control is handled elsewhere.

Fiberglass batts only deliver their rated R-value when they are cut and fit tight — gaps, compression, and voids kill the performance. We cut every batt to the exact cavity dimension and split around wiring and plumbing so there are no voids.

Benefits for Stuart Property Owners

Lowest cost per R-value of any insulation — affordable code compliance.
Faced batts include a built-in vapor retarder for humid South Florida walls.
Ideal for open wall cavities, floor joists, and knee walls during remodels.
Non-combustible — fiberglass won't burn or contribute to flame spread.
Fast installation in accessible framing — no cure time, no off-gassing.

Best Applications

Open wall cavities during remodels
Floor joists and knee walls
Interior partitions for sound control
Budget-conscious code compliance
Accessible framing where blown-in can't reach

How We Install It in Stuart

1Measure each cavity and select the correct R-value batt
2Cut batts to fit tight — no gaps, no compression, no voids
3Install with the vapor retarder facing the warm side
4Staple flanges to the face of the framing or friction-fit into the cavity
5Seal around electrical boxes, plumbing, and penetrations with caulk or foam
6Verify no compression at wiring or plumbing — split the batt if needed
7Walk the job and verify every cavity is filled to full R-value

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-2.2 – R-2.7 / 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-3.4 / 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 1 requirements.

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

FAQs

Fiberglass Batt Insulation FAQs — Stuart

Fiberglass batt installation across the corridor runs $1.00–$2.50 per square foot installed, depending on R-value (R-13 to R-30), faced vs unfaced, and cavity access. It's the most budget-friendly way to hit code R-value. Get an instant quote by ZIP.

Faced batts (kraft or foil) include a vapor retarder and go against the warm side of the cavity — useful in humid South Florida walls. Unfaced batts are used when a separate vapor barrier exists or in interior partitions for sound. We spec both based on the assembly.

For air sealing and moisture, no — spray foam outperforms. But for budget-conscious projects in accessible framing, properly installed fiberglass batts deliver solid R-value at a fraction of the cost. We'll tell you honestly where each makes sense on your home.