Air Sealing Services
Insulation slows heat — air sealing stops the leaks that carry it. Every Boca Raton, Delray Beach, Boynton Beach, West Palm Beach, and Parkland home leaks conditioned air through gaps around plumbing, wiring, recessed lights, attic hatches, and top plates. Cardinal finds and seals every leak with blower-door-guided air sealing, then proves the reduction with before-and-after readings. It's the single highest-ROI upgrade you can make before adding insulation.
Quick specs.
The numbers that matter.
Stops conditioned air from escaping through gaps insulation can't reach.
Lowers cooling bills up to 20% on its own — before any insulation is added.
Reduces humidity and dust intrusion for cleaner indoor air.
Improves HVAC performance — your system runs less and lasts longer.
Verified with blower-door testing — you see the before-and-after numbers.
Why Boca Raton homes lose energy.
Six failures we find in nearly every Boca Raton attic we inspect — each one quietly draining your cooling budget.
Attic depth below target
Most pre-2010 South Florida homes sit at R-11 to R-19 against a DOE-recommended R-30 to R-60 for this climate zone.
Unsealed ceiling plane
Top plates, chases, can lights, and bath fans add up to the equivalent of an open window in your attic.
Leaky attic ductwork
The U.S. Department of Energy estimates typical systems lose 20 to 30 percent of conditioned air through leaks.
Blocked soffit vents
Previous insulation jobs installed without baffles choke off intake ventilation, trapping heat and moisture.
Uninsulated attic hatch
Nearly universal in existing homes — and a twenty-minute fix that pays back immediately in comfort.
Uninsulated block walls
West and south exposures on CBS homes radiate stored heat into living space well past sunset.
What Boca Raton homeowners get.
Every Boca Raton insulation project ends with the same documented deliverable — no surprises, no upcharges, no shortcuts.
- Free on-site inspection with photographs of existing conditions
- Written scope: material, R-value per inch, installed depth, square footage
- Air sealing before insulation, every time — no exceptions
- Baffles installed to protect soffit intake ventilation
- Attic hatch weatherstripped and insulated to match
- Depth rulers set as documented verification of coverage
- Floor protection, containment, and a vacuumed work path
- Itemized invoice suitable for rebate and tax credit filing
Documented proof, not promises.
The U.S. Department of Energy estimates that proper insulation and air sealing can reduce heating and cooling costs by up to 20%. We document every install so you can verify the work meets the standard before you pay the balance.
DOE — Blown-In & Loose-Fill InsulationEvery air sealing search, answered.
We systematically target every air sealing keyword cluster across Boca Raton, Delray Beach, Boynton Beach, West Palm Beach, and Parkland — so whatever you searched to get here, this page is the answer.
Targeted Air Sealing keywords
Modifier clusters we cover
Air Sealing where you actually live.
Cardinal keeps dedicated crews in Boca Raton and Delray Beach — so your air sealing project is handled by specialists who know your neighborhood, your floor plan, and your ZIP code by heart.
Neighborhoods we seal in Boca Raton & Delray Beach
Named neighborhoods with dedicated install history — not a generic "we serve your area" claim. Tap any neighborhood for local proof.
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.
A different category
of contractor.
We don't compete on price. We compete on the 15-point standard the industry skips — from FLIR thermal imaging to Building Scientist verification. Here's where the barrier falls.
No competitor named. The standards speak for themselves.
We put the risk on us, not you.
The barrier between you and comfort shouldn't be money or trust. We remove both — with financing, a lifetime warranty, and proof you can see.
Lifetime Workmanship Warranty
Every seal we install is guaranteed for the life of the home. If it ever fails, we fix it free — no fine print.
Flexible Financing
Spread the cost over 12–60 months with low-interest options. Most homeowners pay less per month than they save on cooling.
Same-Week Inspection
Quote today, FLIR inspection this week. We don't make you wait to start saving.
Documented Savings
Before-and-after infrared proof. You see the sealed shield in thermal imaging before you ever pay the balance.
Ready to remove the barrier?
60-second quote. No call required. No obligation.
The questions Boca, Delray & Boynton actually ask.
Air sealing across the corridor runs $600–$2,500 depending on home size and leak severity, verified with a blower-door test before and after. It's often the highest-ROI upgrade you can make. Get an instant itemized quote by ZIP code.
Yes — insulation doesn't stop air leaks. Fiberglass and cellulose filter air; they don't block it. Gaps around wiring, plumbing, and top plates let your conditioned air escape. We seal those leaks first, then insulate — doing it in reverse traps air in the insulation and wastes the R-value.
Insulation resists heat transfer through a material; air sealing stops the actual movement of air in and out of your home. Both are needed. We use blower-door testing to find the leaks, seal them with foam and caulk, then measure the improvement — so you know exactly how much leakage we eliminated.
The full service matrix.
Every insulation keyword, its own page.
Air Sealing in every city we serve.
Dedicated landing pages for air sealing in every city we serve — 43 cities across 8 counties.
Serving the Boca–Delray–Boynton corridor.
From the Boca inlet to Boynton's western estates — every hot zone below is a home we sealed this year. This is our local service area.
