Duct Leakage Test in Green Lane, PA

Make sure your HVAC system performs at its best and satisfies local energy standards with certified duct leakage test in Green Lane, PA. Our certified technicians identify and measure air leaks in ductwork to help homeowners and builders improve comfort, reduce energy waste, and achieve compliance with state requirements.

Why Duct Leakage Test is Important In Green Lane, PA

In most states and municipalities, the 2015 IECC, International Energy Conservation Code is required for single-family homes, while the 2018 International Energy Conservation Code is required for multi-family homes. The change will impose meaningful implications on home builders and HVAC contractors working regionally within the state. A Duct Leakage Test alongside a Blower Door Test must now be completed in newly constructed or remodeled homes to meet the 2015 regulatory standards. Did you know that ductwork is a major cause of air leakage in homes across Pennsylvania, New Jersey, and Delaware? Leaked air can cause higher energy expenses, burden your HVAC system, and push dust and insulation into different areas of your home. This makes duct leakage test essential for both new and older homes. Continue reading to understand why duct leakage test matters and how it can benefit you.

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How a Duct Leakage Test Is Conducted

To set up a duct leakage test in Green Lane, PA, the technician begins by sealing all supply and return registers, leaving only the air handler or main return open. A duct blaster — a specially calibrated fan — is then connected to the opening. It depressurizes the duct system to expose areas where air is leaking.

The duct blaster collaborates with a precision pressure sensor to evaluate airflow and locate leaks throughout the ductwork without disturbing your household. A duct leakage test — also referred to as a duct blaster test — highlights where air is leaking from your ducts to help you choose the proper sealing method.

duct leakage test is hassle-free, clean, and won’t interfere with residents’ daily routines. Most tests in Green Lane, PA are done within 30 to 60 minutes, with improvements that strengthen comfort and efficiency for years to come.

How to Measure Duct Leakage

Duct leakage is monitored in cubic feet per minute (CFM) per 100 square feet of the conditioned sections of the home. Your technician uses a nanometer to sense slight pressure changes, showing precisely how much air is escaping through the ductwork. Understanding this number helps you locate trouble spots, review possible upgrades, and see if your home complies with local energy code requirements in Green Lane, PA.

Cost of Excessive Duct Leakage

If elevated utility bills, shifting temperatures, or repeated HVAC issues occur in your home, duct leakage may be the factor behind them. According to ENERGY STAR, homes with leaky ducts routinely lose 20% to 30% of conditioned air. If outdoor hot or cold air infiltrates your system, your HVAC struggles to maintain temperatures, raising energy costs and lowering comfort.

Overworked equipment also increases the likelihood of breakdowns and drives up repair costs. Proper duct sealing helps safeguard the long-term reliability of your HVAC system, extending its lifespan and reducing how often maintenance is needed.

Duct leaks can also introduce dust, mold spores, moisture, and additional contaminants into the duct system. This can worsen allergy flare-ups, reduce indoor air quality, and cause long-term structural deterioration behind walls or ceilings.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC requires new homes to use fully sealed duct systems crafted from up-to-date, efficient materials such as mastic, foil tape, and insulation. But what about leaks that lie far within enclosed wall or ceiling spaces?

Aerosol sealing technology (AeroSeal) is an effective solution for reaching hidden ductwork leaks. To perform the process, technicians seal all vents but leave one access point open. The HVAC system is isolated, and a machine is connected to the duct system. It pressurizes the ducts and emits a fine aerosol sealant that fills tiny gaps and holes that standard sealing methods can’t access.

This method is effective at treating small to medium leaks. However, big openings may still need to be addressed with manual mastic-and-tape sealing. Technicians complete before-and-after duct leakage tests to measure leakage reduction and ensure the aerosol sealing was effective.

Common Areas of Duct Leakage

The most usual area for air leakage in ducts is at the joints. Ductwork includes various metal pieces pressed together using tight fittings and metal bands, but these connections are hardly ever airtight.

As your HVAC system operates in both heating and cooling modes year-round, the ducts continuously expand and contract. Over time, this movement causes the joints to loosen, creating gaps and leaks — which is why a duct leakage test is recommended for both new and older homes in Green Lane, PA.

Many energy auditors examine duct leakage by touching the ducts and using a small tool to measure the gap width between joints. If your duct system lacks proper sealing with mastic and approved tape, there is a high chance that leakage is taking place.

What Is an Acceptable Amount of Duct Leakage per Energy Code?

To achieve a passing duct leakage result, your system must show under 4 CFM per 100 square feet if the air handler is installed, or 3 CFM per 100 square feet if it is not. For new construction, an occupancy certificate cannot be issued unless the home passes a duct leakage test.

If your home in Green Lane, PA doesn’t pass its duct leakage evaluation, you’re likely paying more for temperature control — and contributing to long-term HVAC strain. Meeting the 3–4 CFM requirement is necessary not only for meeting code standards but also for ensuring strong energy efficiency and indoor comfort.

Your technician will also share expert recommendations for fixing leakage problems, helping you achieve a passing score, save on utilities, and improve home performance.

Local Energy Audits — affordable duct leakage test in Green Lane, PA

Local Energy Audits proudly works with clients throughout Green Lane, PA and nearby locations. We specialize in measuring duct leakage and energy inefficiencies using advanced blower door and duct leakage tests. Whether you’re building new or improving old, we’re here to help.
If you’d like to book a test, call us during business hours or contact us online to request an appointment.

The Duct Leakage Test Steps Explained

A duct leakage test begins with the technician sealing all ducts and registers using duct mask tape across the supply and return sides.

After the registers are sealed, we secure the duct tester to the HVAC unit or to a main return.

The ducts are then depressurized to a Pascal of 25. With the ducts depressurized we can use the nanometer to get a reading of the duct leakage.

Schedule Your Duct Leakage Test in Green Lane, PA

Ensure your HVAC system achieves strong efficiency, full compliance, and dependable operation with precise duct leakage test in Green Lane, PA. Whether you’re a homeowner focused on comfort or a contractor closing out an inspection, our certified team provides fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and give on-site support to help you pass your test, limit wasted energy, and strengthen the long-term health of your HVAC system.

📞 Call 888-213-3975 ✉️ Request a Quote

Serving homeowners, builders, and contractors across Green Lane, PA with dependable and energy-efficient testing solutions.