Blower Door Testing in Loxahatchee, Florida
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.
Blower Door Testing for Loxahatchee Properties
blower door testing is the workhorse of Florida attic retrofits. For Loxahatchee 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.
Loxahatchee 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.
Blower Door Testing at a glance
- R-value
- Measured in ACH (air changes per hour) — diagnostic
- Installed cost
- $250 – $500 standalone · Free with air-sealing or insulation package
- Service life
- One-time diagnostic (report provided)
- Available in
- Loxahatchee and throughout the surrounding area
Types and Methods
Pre-retrofit blower door test
A baseline test before any air sealing or insulation work. It pressurizes your home and measures exactly how much conditioned air is escaping through gaps in the envelope. The result — expressed in ACH — tells you whether air sealing will pay off and by how much.
Post-retrofit verification test
A second test after air sealing or insulation is complete, proving the improvement. We compare the before-and-after ACH readings so you see exactly how much leakage we eliminated — a number, not a guess.
A blower door test requires all exterior doors and windows closed, and all combustion appliances off. We schedule the test when the home is unoccupied and the HVAC system can be shut down for the duration — typically 1–2 hours.
Benefits for Loxahatchee Property Owners
- 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.
Best Applications
- Homes with unknown air leakage levels
- Pre-insulation diagnostics to scope the work
- Post-air-sealing verification
- Florida energy code compliance testing
- Rebate and incentive program documentation
How We Install It in Loxahatchee
- 1Seal the blower door panel into an exterior door frame
- 2Pressurize (or depressurize) the home to a standard test pressure
- 3Measure the airflow required to maintain that pressure — this is your ACH
- 4Walk the home with a smoke pencil and FLIR camera to locate the leaks
- 5Document every leak location and estimate the leakage contribution
- 6Generate a quantified report with the ACH reading and leak map
- 7Credit the test fee toward any air-sealing or insulation package you book
Cost and R-Value 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.
Blower Door Testing FAQs — Loxahatchee
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.
Other Services in Loxahatchee
- Spray Foam Insulation in Loxahatchee
- Closed-Cell Spray Foam in Loxahatchee
- Open-Cell Spray Foam in Loxahatchee
- Radiant Barriers in Loxahatchee
- Attic Insulation in Loxahatchee
- Blown-In Insulation in Loxahatchee
- Thermal Inspection in Loxahatchee
- Crawl Space Insulation in Loxahatchee
- Insulation Removal in Loxahatchee
- Fiberglass Batt Insulation in Loxahatchee
- Wall Insulation in Loxahatchee
- Air Sealing in Loxahatchee
- Solar Attic Fans in Loxahatchee
- Commercial Insulation in Loxahatchee
- Mineral Wool Insulation in Loxahatchee
- Rigid Foam Board Insulation in Loxahatchee
- Duct Insulation and Sealing in Loxahatchee
- Soundproofing Insulation in Loxahatchee
- Metal Building Insulation in Loxahatchee
Blower Door Testing Nearby
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.











