Blower Door Test in Garnet Valley, PA

Evaluate your home’s air leakage and achieve energy compliance with precise blower door test in Garnet Valley, PA. Our qualified specialists help homeowners, builders, and contractors locate hidden leaks, improve comfort, and fulfill PA energy code standards.

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. Too many air exchanges make heating and cooling systems work harder, increasing energy consumption and lowering efficiency. Too much ventilation can create drafts, discomfort, and unwanted effects like condensation, moisture accumulation, and mold inside your home. A blower door test in Garnet Valley, PA helps pinpoint problem areas early, improving insulation performance, comfort, and home lifespan.

888 213-3975

What Our Clients Say

How Is A Blower Door Test Conducted?

To complete blower door test in Garnet Valley, PA, all exterior openings are sealed, and interior doors are kept open to ensure equal airflow throughout the property. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. A calibrated fan mounted on the frame reduces the home’s pressure to 50 Pascals, simulating the force of a continuous 20 mph wind.

As air is drawn out by the fan, it causes outdoor air to infiltrate through existing leaks and gaps in the structure. A nanometer is used to detect and compare the pressure created by the fan with the air pressure inside the structure. These values are expressed as air changes per hour (ACH), a key measure of the home’s airtightness and its energy performance under PA conditions.

What Is A Passing Blower Door Test Score?

In Garnet Valley, PA, homes generally must comply with the requirements of the 2015 International Energy Conservation Code (IECC) or newer editions enforced by local authorities. In most locations, 3 air changes per hour or less is the standard blower door test result for efficient home performance. Passing this requirement during a blower door test in Garnet Valley, PA keeps your home efficient and aligned with local building code standards.

Why Do I Need A Blower Door Test?

In PA, both state and local jurisdictions follow the IECC (International Energy Conservation Code), requiring blower door test for new and remodeled homes. We provide support to home builders, contractors, and homeowners needing blower door test in Garnet Valley, PA for meeting energy efficiency standards and finalizing permits. You may also need a duct leakage test if your ductwork or HVAC equipment lies outside the home’s thermal envelope. Learn more about energy code compliance.

Homeowners benefit from blower door test in Garnet Valley, PA because depressurization exposes airflow through cracks, helping identify leaks and boost efficiency. A blower door test, typically lasting only a few hours, offers a long-lasting impact on your home’s performance, efficiency, and comfort across PA’ seasons.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Install a quality air barrier like Tyvek or Zip Sheathing and confirm that all joints and seams are completely 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 openings between conditioned and unconditioned areas, including basements, attics, and crawl spaces.
Many cities provide compliance checklists through their building departments — see the Philadelphia version here.
Local Energy Audits is equipped with thermal imaging tools, caulk, and spray foam to find and seal air leaks immediately on-site./li>
In more than 90% of cases, we secure a passing score within two hours and deliver the paperwork needed to close the permit.

Preparing for a Blower Door Test in Garnet Valley, PA

Preparation for blower door test in Garnet Valley, PA begins with switching off the HVAC system, as well as any bathroom and kitchen exhaust fans. Next, we check the home thoroughly to ensure all exterior openings — even those leading to garages or unfinished basements — are securely closed and within the thermal envelope. After sealing everything, we install the blower door frame and fan in a central exterior door and use it to depressurize the home to 50 Pascals for accurate airflow data. Once the home is under depressurization, exterior air infiltrates faster through cracks, helping pinpoint leaks. Using a thermal imager, we easily locate air leaks by noting temperature differences on walls, ceilings, and other surfaces adjacent to unconditioned spaces. We bring the tools and materials—chalk, spray foam, and weatherstripping—to work with homeowners or contractors in fixing visible air leakage issues immediately. Once air leaks are sealed, we quickly retest to determine if the desired blower door score has been achieved, ensuring your home meets Garnet Valley, PA efficiency codes.

Blower Door Test for Contractors in Garnet Valley, PA

Professionally insulated homes tested by contractors during blower door test in Garnet Valley, PA can often address minor issues right on the spot. Using easy-to-apply materials like chalk and spray foam, we can correct small leaks or gaps during the test itself. In over 90% of cases, we successfully reach a passing blower door test score within two hours and hand over all necessary paperwork for immediate permit closure.

888 213-3975

Schedule Your blower door test in Garnet Valley, PA

Choose our professional team for quick, accurate, and certified blower door test in Garnet Valley, PA. Whether you’re improving your home’s comfort or closing a building permit, our tests are performed with care and meet all energy efficiency codes.

📞 Call 888-213-3975 ✉️ Contact Us