Blower Door Testing

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Measure the Air Leaking In and Out of Your Home

Your home is not as airtight as you think.

Air is constantly leaking in and out through gaps in the building envelope, bringing in heat, humidity, dust, and contaminants. These hidden leaks impact comfort, energy efficiency, and indoor air quality.

At Building Performance Solutions, we use professional blower door testing to quantify exactly how your home is performing, and more importantly, how to improve it.

What Is Blower Door Testing?

Blower door testing is a diagnostic method used to measure how much air leakage exists in a home or building.

We install a calibrated fan in an exterior doorway to:

  • Depressurize the home
  • Measure total air leakage (ACH50)
  • Identify where outside air is entering

This provides a clear, measurable understanding of how “tight” or “leaky” your home is.

Why Air Leakage Matters

Air leakage is one of the most overlooked drivers of indoor air quality and comfort issues.

Common Effects of Excess Air Leakage:

  • High indoor humidity (especially in Florida climates)
  • Increased dust and particulate infiltration
  • Hot and cold spots throughout the home
  • Higher energy bills
  • Poor HVAC performance
  • Increased risk of mold growth

Air leakage is also a major pathway for contaminants entering the home.

This includes:
  • Attic air
  • Insulation fibers
  • Outdoor pollutants
  • Moisture-laden air

Our Approach: Beyond the Number

Most companies stop at providing an ACH50 number.
We don’t.
At Building Performance Solutions, blower door testing is part of a full building performance evaluation, allowing us to determine:
  • Where leakage is occurring
  • How it is impacting humidity and air quality
  • Whether the home is under negative pressure
  • How the HVAC system is interacting with the envelope
This is where real solutions come from.

What Is ACH50 and What Does It Mean?

ACH50 (Air Changes per Hour at 50 Pascals) represents how many times the air inside your home is replaced in one hour under test conditions.

Lower numbers = tighter home

Higher numbers = leakier home

However:
There is no “one-size-fits-all” target.

In Florida, the goal is not just tightness, it’s controlled airflow and proper humidity management.

We interpret your results based on:
  • Home size and construction
  • Climate zone
  • HVAC system design
  • Ventilation strategy

What Makes BPS Different

  • Building science-based diagnostics (not just testing)
  • Integration with HVAC performance and pressure analysis
  • Focus on humidity control and IAQ, not just energy savings
  • Real-world recommendations tailored to your home
  • Experience working with both homeowners and builders
We don’t just measure leakage, we explain how it affects your home as a system.

Who Should Consider Blower Door Testing?

Homeowners:
  • High humidity inside the home
  • Musty odors or mold concerns
  • Uneven temperatures
  • Excess dust or poor air quality
  • High energy bills
Builders & New Construction:
  • Code compliance testing
  • Energy efficiency verification
  • Identifying envelope deficiencies
  • Improving overall home performance

What Happens After Testing

You’ll receive:
  • Measured ACH50 results
  • Identification of key leakage areas
  • Interpretation based on your home and climate
  • Recommendations for improvement
If issues are found, we can guide:
  • Air sealing strategies
  • HVAC adjustments
  • Ventilation improvements
  • Moisture control solutions

Serving Florida Homeowners & Builders

We provide duct leakage testing throughout Florida, including:
  • Southwest Florida
  • Tampa / Sarasota / Bradenton
  • Orlando and Central Florida
This service is essential for both existing homes and new construction projects.

Schedule Your Blower Door Test

If you don’t measure air leakage, you’re guessing.

Test your home. Understand the results. Improve performance.

Call or text to schedule 941 444-6353