Blower Door Test in Ewing, NJ

Make sure your home meets airtightness and efficiency goals with certified blower door test in Ewing, NJ. Our trained team assists homeowners, builders, and contractors by detecting hidden air leaks, boosting comfort, and meeting NJ energy regulations.

What Is A Blower Door Test?

A blower door test helps calculate air changes per hour in your property. This natural air exchange process refreshes the indoor environment with new air. Too many air changes can negatively impact efficiency, as every replacement of indoor air demands additional heating or cooling energy. Excessive air circulation may cause drafts, discomfort from leaks, and indoor problems like condensation, mold, and moisture damage. A blower door test in Ewing, NJ 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?

In blower door test in Ewing, NJ, every exterior door and window is shut, while interior doors stay open to allow uniform airflow inside the building. One central exterior entry is selected, and an aluminum frame with a flexible fabric panel is installed securely. The mounted calibrated fan depressurizes the building to 50 Pascals, a condition similar to the effect of a 20 mph wind.

As the fan exhausts indoor air, outside air starts seeping into the home through small leaks and gaps. A precise tool called a nanometer is used to compare the pressure generated by the fan with that inside the home. The pressure data is turned into air changes per hour (ACH), a measure of how efficiently and tightly the home is sealed in NJ.

What Is A Passing Blower Door Test Score?

Properties in Ewing, NJ must meet the efficiency guidelines of the 2015 International Energy Conservation Code (IECC) or the latest version adopted locally. To meet efficiency standards in most areas, homes should record 3 air changes per hour or less on a blower door test. Meeting this benchmark in your blower door test in Ewing, NJ reduces ongoing energy costs while ensuring local regulatory compliance.

Why Do I Need A Blower Door Test?

The State of NJ and local municipalities have implemented the IECC code, which mandates blower door test on new and remodeled residential homes. We routinely help home builders, contractors, and homeowners requiring blower door test in Ewing, NJ for energy code compliance and permit closure. If ducts or HVAC units are located outside the thermal envelope, a duct leakage test may also be mandated. Learn more about energy code compliance.

Performing blower door test in Ewing, NJ allows homeowners to identify and fix leaks. The test makes air infiltration visible, uncovering opportunities to reduce energy loss. Typically completed within a few hours, a blower door test provides a long-lasting impact on comfort, energy efficiency, and overall home performance in NJ’ varied climate.

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.
Use properly rated insulation with the right R-value and ensure consistent coverage throughout 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.
Close any gaps connecting conditioned and unconditioned spaces, such as those leading to basements, attics, or crawl spaces.
Local building authorities commonly offer checklists to verify code compliance — review the Philadelphia example here.
Equipped with thermal imaging tools, caulk, and spray foam, Local Energy Audits can find and fix leaks directly at your property./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 Ewing, NJ

To get ready for blower door test in Ewing, NJ, our team turns off the HVAC system and shuts down kitchen and bathroom fans. Next, we carefully walk through the property to make sure all exterior openings — including those to basements, garages, or areas outside the thermal envelope — are closed properly. 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. After the home is depressurized, outdoor air pushes in more strongly, allowing leaks to become more noticeable. Using a thermal imager, we easily locate air leaks by noting temperature differences on walls, ceilings, and other surfaces adjacent to unconditioned spaces. With chalk, spray foam, and weatherstripping materials on hand, we partner with homeowners and contractors to repair visible air leakage issues on the spot. After sealing the identified leaks, we retest right away to confirm that the desired blower door score meets local energy performance standards in Ewing, NJ.

Blower Door Test for Contractors in Ewing, NJ

For contractors booking blower door test in Ewing, NJ, homes with quality insulation usually require only quick, on-site fixes during testing. With materials such as chalk and spray foam on hand, minor leaks or gaps can usually be sealed immediately. In over 90% of cases, we are able to reach a passing blower door test score in under two hours and supply all necessary paperwork to finalize the building permit right away.

888 213-3975

Schedule Your blower door test in Ewing, NJ

Trust our experienced team for quick, accurate, and certified blower door test in Ewing, NJ. Whether you’re a homeowner seeking greater comfort or a contractor finalizing a permit, we ensure every test meets energy code requirements with precision and professionalism.

📞 Call 888-213-3975 ✉️ Contact Us