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

Crawl Space Insulation in Lake Worth Beach, Florida

Crawl spaces are a major source of moisture, drafts, and energy loss in South Florida homes. Cardinal seals crawl spaces with closed-cell spray foam — a moisture barrier, air barrier, and insulator in one — that stops ground moisture, eliminates floor drafts, and protects against mold and wood rot.

(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

Crawl Space Insulation for Lake Worth Beach Properties

crawl space 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.

Crawl Space Insulation at a glance

R-value: R-6.5 / inch (closed-cell spray foam)
Installed cost: $2.50 – $7.00 per sq ft installed
Service life: 80+ years (closed-cell foam)
Available in: Lake Worth Beach and throughout the surrounding area

Call (561) 654-7698

Types and Methods

Closed-cell foam encapsulation

Closed-cell spray foam applied to the crawl space walls and ground (or vapor barrier). It acts as insulation, vapor barrier, and air seal in one application — stopping ground moisture, eliminating floor drafts, and conditioning the space. This is our standard for South Florida crawl spaces.

Floor joist insulation

Fiberglass batts or closed-cell foam installed between the floor joists above the crawl space. Less comprehensive than encapsulation but useful where budget or access is limited. We pair it with a ground vapor barrier for moisture control.

Crawl space insulation requires addressing any active water intrusion first. If we find standing water, plumbing leaks, or drainage problems, those get corrected before any insulation goes in — otherwise the insulation traps the moisture and accelerates mold and rot.

Benefits for Lake Worth Beach Property Owners

Stops ground moisture migration that causes mold and rot.
Eliminates cold-floor drafts and uneven temperatures.
Closed-cell foam = insulation + vapor barrier + air seal in one.
Protects subfloor structural integrity from humidity damage.
Reduces musty odors and improves indoor air quality.

Best Applications

Homes with cold floors and drafty living spaces
Crawl spaces with visible moisture or mold
Homes with musty odors and high indoor humidity
Older homes with uninsulated floor joists
Properties where ductwork runs through the crawl space

How We Install It in Lake Worth Beach

1Inspect the crawl space for moisture, mold, and structural issues
2Remove debris and address any active water intrusion first
3Install a ground vapor barrier if not already present
4Spray closed-cell foam to the walls and/or floor joists to specified depth
5Seal all penetrations — plumbing, wiring, and HVAC ducts
6Verify the space is conditioned and moisture is controlled
7Document the work with before-and-after photos

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

Crawl Space Insulation FAQs — Lake Worth Beach

Closed-cell spray foam crawl space insulation typically runs $2,500–$7,000 depending on square footage and access. It doubles as encapsulation — moisture barrier, air seal, and insulation in one application.

In South Florida's humid climate, sealing the crawl space walls and ground (encapsulation) with closed-cell foam outperforms insulating the floor joists. It conditions the space and stops moisture at its source.

Dramatically. Closed-cell foam is a Class II vapor retarder — it blocks ground moisture migration that drives indoor humidity, musty odors, and mold. Most homeowners notice the difference within days.