Blower Door Test in Warrington, PA

Test your home’s air barriers and meet energy regulations through dependable blower door test in Warrington, PA. Our certified specialists support homeowners, builders, and contractors by locating hidden air leaks, improving efficiency, and achieving PA energy code compliance.

What Is A Blower Door Test?

A blower door test checks the number of air changes per hour in your home, ensuring old air is replaced with new, clean air for a healthier environment. Excess air exchange can harm efficiency because each replacement of indoor air requires extra energy to heat or cool it again. Excessive air changes can also lead to drafts and discomfort caused by air leaks, along with moisture, condensation, and mold problems inside the home. A blower door test in Warrington, PA helps spot air leaks before they worsen, improving efficiency, comfort, and long-term structural quality.

888 213-3975

What Our Clients Say

How Is A Blower Door Test Conducted?

For blower door test in Warrington, PA, all outside doors and windows are closed properly, and inside doors are kept open to balance air pressure throughout the space. A central door to the outside is selected, and an adjustable aluminum frame with a fabric cover is installed there. Technicians use a calibrated fan mounted on the frame to bring the home’s interior to 50 Pascals, approximating a 20 mph wind on the walls.

When the fan pulls indoor air outward, fresh air from outside rushes in through leaks and weak spots. By employing a nanometer, we measure the variance between the fan’s pressure and the internal home pressure. These readings produce the air changes per hour (ACH) value, indicating both the home’s airtightness and efficiency within the PA climate.

What Is A Passing Blower Door Test Score?

Houses in Warrington, PA are required to meet the standards of the 2015 International Energy Conservation Code (IECC) or the latest locally adopted version. An acceptable blower door test result in most areas is 3 air changes per hour or less, demonstrating solid energy performance. Reaching this target in your blower door test in Warrington, PA helps maintain lower energy bills and fulfills local code obligations.

Why Do I Need A Blower Door Test?

The State of PA and numerous local municipalities adhere to the IECC (International Energy Conservation Code), which mandates blower door test for all newly built or renovated residential homes. Our company assists home builders, contractors, and homeowners who rely on blower door test in Warrington, PA to fulfill energy code compliance and finalize construction permits. A duct leakage test could be required when air ducts or HVAC units extend outside the structure’s thermal envelope. Learn more about energy code compliance.

Performing blower door test in Warrington, PA allows homeowners to identify and fix leaks. The test makes air infiltration visible, uncovering opportunities to reduce energy loss. A blower door test requires minimal time but makes a long-lasting impact on home comfort and energy performance during PA’ extreme temperatures.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Employ an appropriate air barrier system such as Tyvek or Zip Sheathing and verify that each seam has been correctly taped.
Install correctly rated insulation with the proper R-value and confirm it’s well positioned in every part of the building envelope.
Seal all penetrations in exterior walls using caulk or spray foam.
Ensure doors and windows are properly installed, caulked, and weather-sealed.
Seal all joints and gaps that connect conditioned and unconditioned areas such as basements, attics, and crawl spaces.
Many building departments provide step-by-step compliance guides — you can find the Philadelphia example here.
Local Energy Audits arrives fully equipped with thermal imaging, caulk, and spray foam to detect and seal leaks in one visit./li>
Over 90% of our projects pass within two hours, with all required paperwork issued immediately to close the permit.

Preparing for a Blower Door Test in Warrington, PA

For blower door test in Warrington, PA, preparation includes turning off all heating and air conditioning units, plus bathroom and kitchen exhaust fans. We follow with a quick walkthrough to ensure all exterior doors and windows are fully closed — including those that connect to garages, basements, or any part outside the thermal envelope. After sealing the home, the blower door fan is installed in a central exterior doorway and used to lower pressure to 50 Pascals to measure airflow and leakage effectively. When the home reaches negative pressure, outside air infiltrates through openings, making leaks visible. Through the use of a thermal imager, we find problem zones by detecting uneven temperatures in walls, ceilings, and surfaces connected to unconditioned spaces. We come prepared with chalk, spray foam, and weatherstripping, allowing us to assist homeowners or contractors in sealing visible air leakage points on the spot. After all leaks are sealed, we retest immediately to confirm the desired blower door score has been met and that your home satisfies efficiency requirements in Warrington, PA.

Blower Door Test for Contractors in Warrington, PA

During blower door test in Warrington, PA, contractors will find that well-insulated homes can manage minor issues directly on-site. Using professional-grade materials like chalk and spray foam, we seal small leaks or gaps as soon as they’re detected. In over 90% of cases, our technicians achieve a passing blower door test score within just two hours and supply all necessary documentation to finalize the building permit efficiently.

888 213-3975

Schedule Your blower door test in Warrington, PA

Get expert, certified, and dependable blower door test in Warrington, PA delivered by our experienced professionals. Whether you’re improving a home’s efficiency or ensuring code compliance for a project, we perform every test with professionalism and attention to detail.

📞 Call 888-213-3975 ✉️ Contact Us