Duct Leakage Test in Haddon, NJ

Guarantee your HVAC system runs efficiently and adheres to local requirements with quality duct leakage test in Haddon, NJ. Our certified technicians find and measure ductwork air leaks, allowing homeowners and builders to improve indoor comfort, reduce energy waste, and satisfy state standards.

Why Duct Leakage Test is Important In Haddon, NJ

Across different states and municipalities, the 2015 IECC, International Energy Conservation Code regulates single-family structures, and the 2018 International Energy Conservation Code is used for multi-family structures. The change will create several important implications for home builders and HVAC contractors operating within the state. A Duct Leakage Test and a Blower Door Test are now mandatory for newly built or renovated homes under the 2015 regulations. Did you know that improperly sealed ducts account for a major portion of air leakage in homes across Pennsylvania, New Jersey, and Delaware? Leaked air can spike your energy costs, wear down your HVAC system, and spread dust and insulation throughout various parts of your home. This makes duct leakage test valuable for new and existing homes alike. Read on to learn why duct leakage test is important and how it can help you.

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How a Duct Leakage Test Is Conducted

To start a duct leakage test in Haddon, NJ, the technician will close and seal every supply and return register except the main return or air handler. A duct blaster fan, carefully calibrated for accuracy, is then attached to the duct opening. It depressurizes the ductwork, allowing leaks to become more noticeable.

The duct blaster teams up with a precision pressure sensor to measure airflow accurately and locate duct leaks without affecting your home. A duct leakage test — often described as a duct blaster test — identifies leaking areas in your ducts so you can determine the most efficient sealing fix.

duct leakage test is straightforward, clean, and designed to be non-intrusive for residents. Most tests in Haddon, NJ take just 30 to 60 minutes, and the resulting improvements can enhance your home’s comfort and efficiency long-term.

How to Measure Duct Leakage

Duct leakage is assessed using cubic feet per minute (CFM) per 100 square feet of conditioned space. Your technician uses a nanometer to pick up minor pressure shifts that indicate the level of air leakage within the ducts. Understanding this number allows you to highlight problem zones, explore improvement possibilities, and confirm compliance with local energy code requirements in Haddon, NJ.

Cost of Excessive Duct Leakage

If you’re experiencing spikes in utility bills, uncomfortable temperature variations, or ongoing HVAC repair needs, duct leakage may be to blame. According to ENERGY STAR, the average home loses 20% to 30% of conditioned air through leaky ducts. If hot or cold air from outdoors enters your system, your HVAC works harder than necessary, causing energy costs to rise and comfort to fall.

Overworked equipment also leads to more breakdowns and costly repairs. Proper duct sealing helps sustain your HVAC system’s long-term condition, increasing its operational lifespan and decreasing maintenance requirements.

Duct leaks can also introduce dust, mold spores, moisture, and additional contaminants into the duct system. This can aggravate allergies, lower indoor air quality, and eventually lead to costly structural damage hidden behind walls or ceilings.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC states that new homes must have duct systems sealed completely with energy-efficient products such as mastic, foil tape, and insulation. But what about leaks located deep within walls or ceilings?

Aerosol sealing technology (AeroSeal) helps target hard-to-reach openings deep within ducts. To perform the technique, all vents are sealed except a single access opening. The HVAC system is isolated, and a machine is hooked into the duct system. It pressurizes the ducts and sprays a fine mist of sealant that fills tiny leaks and holes beyond the reach of conventional sealing.

This method performs well for small and medium leaks. However, larger openings typically require manual sealing with mastic and tape. Technicians run leakage tests both before and after aerosol sealing to gauge how much air loss decreased and confirm proper results.

Common Areas of Duct Leakage

The most usual spot for duct air leakage is the joints. Ductwork is composed of various metal pieces pressed together using tight fittings and metal bands, but these seals are hardly ever fully airtight.

As your HVAC system regulates temperatures through the seasons, the ducts expand when heated and contract when cooled. Over time, this movement results in loose joints that create gaps and leaks — making a duct leakage test necessary for new and older homes in Haddon, NJ.

Many energy auditors detect leaks by checking the duct surfaces by hand and using a small tool to measure joint gap width. If your duct system isn’t sealed with mastic and approved tape, there’s a good chance that leaks are occurring.

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

To achieve a passing duct leakage result, your system is required to measure under 4 CFM per 100 square feet with the air handler installed, or 3 CFM per 100 square feet when it isn’t installed. For new construction, a duct leakage test must be successfully passed before the home can obtain an occupancy certificate.

If your home in Haddon, NJ fails a duct leakage test, you are probably spending more than you should on heating and cooling — while also putting long-term stress on your HVAC system. Meeting the 3–4 CFM requirement is indispensable not only for compliance purposes but for ensuring strong comfort and energy savings.

Your technician will also provide professional insights on resolving leakage issues so you can achieve a passing score, lower your utility costs, and optimize home performance.

Local Energy Audits — affordable duct leakage test in Haddon, NJ

Local Energy Audits is proud to serve families and builders across Haddon, NJ and the surrounding local areas. We specialize in locating and diagnosing duct leakage and energy inefficiencies through blower door and duct leakage tests. Whether your home is newly built or older, we’re here to help.
If you’d like to schedule 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 technicians sealing all ducts and registers using duct mask tape on the supply and return sides.

After the registers are sealed, we attach the duct tester directly to the unit or to one primary return.

The ducts are then taken down to 25 Pascals. With the ducts depressurized, the nanometer is used to determine the leakage level.

Schedule Your Duct Leakage Test in Haddon, NJ

Ensure your HVAC system continues to perform efficiently, meets compliance, and runs at its best with specialized duct leakage test in Haddon, NJ. Whether you’re a homeowner addressing comfort issues or a contractor completing the last inspection step, our certified team ensures fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and deliver on-site guidance to help you pass your test, limit energy waste, and preserve your HVAC system’s long-term health.

📞 Call 888-213-3975 ✉️ Request a Quote

Serving homeowners, builders, and contractors across Haddon, NJ with dependable and energy-efficient testing solutions.