Blower Door Testing
A blower door test pressurizes your home and measures exactly how much conditioned air is escaping through gaps insulation can't reach. Cardinal runs blower-door-guided air sealing across Boca Raton, Delray Beach, Boynton Beach, West Palm Beach, and Parkland — finding the leaks, sealing them, and proving the reduction with before-and-after readings. It's the diagnostic that turns a guess into a number.
Quick specs.
The numbers that matter.
Quantifies your home's air leakage in ACH — a number, not a guess.
Finds the exact leaks insulation can't reach — before you spend on insulation.
Lowers cooling bills up to 20% on its own — before any insulation is added.
Verifies air-sealing work with before-and-after readings you can see.
Required for many Florida energy code compliance and rebate programs.
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 blower door testing search, answered.
We systematically target every blower door testing 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 Blower Door Testing keywords
Modifier clusters we cover
Blower Door Testing where you actually live.
Cardinal keeps dedicated crews in Boca Raton and Delray Beach — so your blower door testing 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.
A blower door is a calibrated fan sealed into an exterior door frame. It pressurizes (or depressurizes) your home and measures how much air leaks out through gaps in the envelope. The result is expressed in ACH — air changes per hour — the single most useful number for understanding how leaky your home is and whether air sealing will pay off.
A standalone blower door test across the corridor runs $250–$500. It's included at no charge with every Cardinal air-sealing or insulation package, and we credit the standalone fee toward any install you book. Get an instant itemized quote by ZIP code.
If your home is older or has never been air-sealed, yes. The test finds the leaks insulation can't reach — around wiring, plumbing, recessed lights, and the attic hatch — so they get sealed before insulation goes in. Doing it in reverse traps air in the insulation and wastes the R-value.
Florida Building Code targets 5–7 ACH50 for new construction. Older homes often test at 10–15 ACH50 or higher. After Cardinal air sealing, most homes land at 4–6 ACH50 — a measurable, documented improvement you can see in the before-and-after readings.
The full service matrix.
Every insulation keyword, its own page.
Blower Door Testing in every city we serve.
Dedicated landing pages for blower door testing 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.
