Blower Door Test in Hopewell township, NJ

Make sure your home meets airtightness and efficiency goals with certified blower door test in Hopewell township, NJ. Our qualified specialists help homeowners, builders, and contractors locate hidden leaks, improve comfort, and fulfill NJ energy code standards.

What Is A Blower Door Test?

A blower door test measures the air changes per hour within a home or building. Air exchange is a normal and healthy process that allows stale indoor air to be replaced with fresh air. Too many air changes can negatively impact efficiency, as every replacement of indoor air demands additional heating or cooling energy. Excessive air changes can bring drafts and air leakage discomfort while promoting moisture buildup, mold, and condensation. A blower door test in Hopewell township, NJ identifies air leakage issues before they become serious, ensuring efficiency, comfort, and long-term durability.

888 213-3975

What Our Clients Say

How Is A Blower Door Test Conducted?

In preparation for blower door test in Hopewell township, NJ, all exterior entry points are sealed, and interior doors are left open to allow consistent air circulation. Technicians select one central exterior door and install an adjustable aluminum frame along with a fabric panel for testing. A calibrated fan is used to depressurize the home through the frame to 50 Pascals, representing the same pressure as a 20 mph wind.

When the fan depressurizes the home, outdoor air seeps in through leaks, crevices, and other air pathways. Using a nanometer, we accurately compare the pressure difference between the fan output and the home’s interior. These results are transformed into air changes per hour (ACH), an indicator of the home’s airtightness and its efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In Hopewell township, NJ, all new homes must comply with the 2015 International Energy Conservation Code (IECC) or more current codes enforced by local jurisdictions. An efficient home in most regions will achieve 3 air changes per hour or less during a blower door test. Satisfying this requirement in your blower door test in Hopewell township, NJ helps optimize energy use and ensures you meet local building standards.

Why Do I Need A Blower Door Test?

In NJ, both state and local jurisdictions follow the IECC (International Energy Conservation Code), requiring blower door test for new and remodeled homes. We work closely with home builders, contractors, and homeowners who need blower door test in Hopewell township, NJ to ensure compliance and successful project completion. A duct leakage test might be necessary if your home’s HVAC units or ducts are located outside its thermal envelope. Learn more about energy code compliance.

Homeowners can greatly benefit from blower door test in Hopewell township, NJ. The depressurization process makes air leaks noticeable, helping pinpoint trouble areas and improve energy efficiency. A short blower door test can result in a long-lasting impact on your home’s energy efficiency, comfort, and year-round performance in NJ.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Choose Tyvek or Zip Sheathing as your air barrier and check that all seams are securely taped to maintain airtightness.
Place insulation with the accurate R-value and check for proper installation and full coverage in 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.
Make sure to seal all separations between conditioned and unconditioned areas, including crawl spaces, basements, and attics.
Many local building offices offer a step-by-step checklist to confirm compliance — view the Philadelphia sample here.
Local Energy Audits uses professional-grade thermal imaging, caulk, and spray foam to locate and close leaks during the visit./li>
We achieve a passing score within two hours in over 90% of cases and promptly issue the documents to finalize your permit.

Preparing for a Blower Door Test in Hopewell township, NJ

Before starting blower door test in Hopewell township, NJ, we turn off all heating, air conditioning, and exhaust fans in bathrooms and kitchens. Next, we do a complete walkthrough to ensure all exterior doors and windows are sealed — including those opening to garages, unfinished basements, or areas beyond the thermal envelope. Once everything is sealed, we choose a centrally located exterior door and set up the blower door frame and fan. The fan then depressurizes the home to 50 Pascals, allowing us to measure airflow and leakage precisely. Once the home is depressurized, outside air starts infiltrating more forcefully, making it easier to spot air leaks. A thermal imager helps us visualize temperature differences in walls, ceilings, and surfaces that separate conditioned and unconditioned spaces. We’re equipped with chalk, spray foam, and weatherstripping materials, so we can partner with homeowners or contractors to repair visible air leakage problems right on-site. After sealing, we perform a follow-up test to determine if the desired blower door score meets the efficiency standards required in Hopewell township, NJ.

Blower Door Test for Contractors in Hopewell township, NJ

For contractors conducting blower door test in Hopewell township, NJ, well-insulated homes generally require only minimal on-site corrections during the test. With materials such as chalk and spray foam, most small leaks or gaps can be sealed immediately on-site. In more than 90% of cases, we achieve a passing blower door test score within two hours and provide complete documentation to close out the building permit the same day.

888 213-3975

Schedule Your blower door test in Hopewell township, NJ

Count on our skilled technicians for fast, precise, and certified blower door test in Hopewell township, NJ. 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