Duct Leakage Testing

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Find the Air You’re Paying For, But Not Receiving

Most duct systems leak.

In many homes, 20–40% of the air moving through the system never reaches the living space. Instead, it’s lost into attics, walls, or crawlspaces, bringing in heat, humidity, and contaminants.

At Building Performance Solutions, we use the Energy Conservatory Duct Blaster® method to precisely measure duct leakage and identify where your system is failing.

What Is Duct Leakage Testing?

Duct leakage testing is a diagnostic procedure that measures how much air is escaping from your duct system.

Using specialized equipment, we:

  • Seal off supply and return registers
  • Pressurize the duct system
  • Measure total air leakage (CFM25)
  • Identify how much air is being lost to unconditioned spaces
This is the industry-standard method used in energy audits, new construction verification, and building performance diagnostics.

Why Duct Leakage Matters

Leaky duct systems don’t just waste energy, they create real problems inside the home.

Common Impacts of Duct Leakage:

  • Reduced airflow to rooms
  • Hot and cold spots
  • High humidity and moisture issues
  • Increased dust and insulation particles
  • Poor indoor air quality
  • Higher energy bills
More importantly:
Duct leakage can pull in contaminated air from attics, garages, or wall cavities.
This is a major contributor to:
  • Elevated particulate levels
  • Mold exposure
  • Odors and VOCs
  • Comfort complaints

Our Approach: Testing With Purpose

We don’t just give you a number; we explain what it means for your home.

Our duct leakage testing is often combined with:

  • Static pressure testing
  • Airflow diagnostics
  • HVAC system performance evaluation
  • Building pressure analysis

This allows us to determine:

  • Where the leaks are occurring
  • How they are impacting your home
  • What level of correction is actually needed

The Energy Conservatory Duct Blaster® Method

We use professional-grade equipment from The Energy Conservatory, the gold standard in building diagnostics.

This method provides:

  • Accurate measurement of total duct leakage (CFM25)
  • Leakage normalized to system size or square footage
  • Repeatable, verifiable results
  • Data used for code compliance and performance verification
This is the same methodology referenced in:
  • Energy Star programs
  • Florida Energy Code
  • RESNET / HERS ratings

What Makes BPS Different

Most companies:
  • Perform a duct test
  • Report a number
  • Leave the solution unclear
We connect the dots.
Building Performance Solutions:
  • Integrates duct leakage with full system performance
  • Identifies root causes, not just symptoms
  • Provides clear, actionable correction strategies
  • Understands how leakage affects IAQ, humidity, and pressure

We treat the duct system as part of the entire building envelope.

When Should You Consider Duct Leakage Testing?

  • Uneven temperatures throughout the home
  • High humidity or comfort issues
  • Excess dust despite regular cleaning
  • Concerns about attic air entering the home
  • New construction verification
  • Prior to duct replacement or Aeroseal
  • As part of a full building performance evaluation

What Happens After Testing

You’ll receive:
  • Measured duct leakage (CFM25)
  • Interpretation based on home size and system performance
  • Identification of likely leakage locations
  • Recommendations for repair or optimization
If needed, we can guide next steps such as:
  • Duct sealing or Aeroseal
  • Duct redesign or replacement
  • Airflow balancing
  • System performance improvements

Serving Florida Homeowners & Builders

We provide duct leakage testing throughout Florida, including:
  • Southwest Florida
  • Tampa / Sarasota / Bradenton
  • Orlando and Central Florida
This service is valuable for both homeowners and builders looking to verify system performance.

Schedule Your Duct Leakage Test

If your HVAC system isn’t performing the way it should, duct leakage is often a major part of the problem.

Test it. Understand it. Fix it correctly.

Call or text to schedule 941-444-6353