Duct Leakage Test in Sea Girt, NJ

Enhance your HVAC system’s efficiency and satisfy energy regulations through precise duct leakage test in Sea Girt, NJ. 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 Sea Girt, NJ

Across the country, states and municipalities enforce the 2015 IECC, International Energy Conservation Code for single-family buildings and the 2018 International Energy Conservation Code for multi-family buildings. The change will bring forward important implications for home builders and HVAC contractors working in 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 leaking ducts are a widespread cause of air loss in homes across Pennsylvania, New Jersey, and Delaware? Leaked air can raise utility expenses, overburden your HVAC system, and push insulation material and dust through every area of your home. This makes duct leakage test critical for both modern and older homes. Continue reading to explore why duct leakage test is important and how you benefit from it.

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How a Duct Leakage Test Is Conducted

To prepare for a duct leakage test in Sea Girt, NJ, the technician seals every supply and return register, leaving only the main return or air handler unsealed. A duct blaster — a precision-calibrated fan — is then fitted to the duct opening. By depressurizing the system, it makes all air leaks much easier to detect.

The duct blaster system, along with a precision pressure sensor, measures airflow and highlights leaks in the ductwork without inconveniencing you at home. A duct leakage test — sometimes identified as a duct blaster test — shows where your ducts lose air, helping you plan the right sealing approach.

duct leakage test is efficient, mess-free, and completely non-intrusive for residents. Most tests in Sea Girt, NJ 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 evaluated in cubic feet per minute (CFM) per 100 square feet of conditioned space inside the home. Your technician uses a nanometer to read small pressure variations, helping determine the volume of air escaping through the ducts. Understanding this number helps you spot leakage issues, evaluate corrective measures, and determine if your home is meeting local energy code requirements in Sea Girt, NJ.

Cost of Excessive Duct Leakage

If you observe rising utility costs, temperature swings in different rooms, or regular HVAC breakdowns, duct leakage may be involved. According to ENERGY STAR, duct leakage causes homeowners to lose 20%–30% of their conditioned air on average. Air from outside—whether hot or cold—entering your system forces your HVAC to work harder, increasing utility bills and reducing indoor comfort.

Overworked equipment also contributes to repeated breakdowns and pricey repairs. Proper duct sealing helps improve the long-term health of your HVAC system, boosting longevity and reducing ongoing maintenance requirements.

Duct leaks can also pull dust, mold spores, excess moisture, and various 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 enforces that new homes incorporate fully sealed ducts made with modern, energy-efficient materials including mastic, foil tape, and insulation. But what if the leaks are buried far inside your walls or ceilings?

Aerosol sealing technology (AeroSeal) helps seal hard-to-find openings within the duct system. To set up this method, all vents are sealed off except for a single access point. The HVAC system is isolated, and a machine is fitted to the duct system. It pressurizes the ducts and injects a fine aerosolized sealant that targets small holes and gaps unreachable by traditional sealing methods.

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 typical place for ducts to lose air is at the joints. Ductwork consists of different metal sections pressed together with tight fittings and metal bands, yet these joints are not usually airtight.

As your HVAC system transitions between warm and cool air throughout the year, the ducts expand and contract. Over time, this movement makes the joints loosen, forming gaps and leaks — meaning a duct leakage test is advised for both new and older homes in Sea Girt, NJ.

Many energy auditors assess duct leakage by touching the ductwork and using a small tool to check the width of gaps where joints connect. If your duct system has not received sealing with mastic and approved tape, leakage is very probable.

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

To achieve a passing duct leakage result, your system must come in under 4 CFM per 100 square feet with the air handler, or 3 CFM per 100 square feet when the air handler is removed. For new construction, the duct leakage test must be passed prior to the home being approved for an occupancy certificate.

If your home in Sea Girt, NJ does not pass a duct leakage test, you are likely paying more than necessary for heating and cooling — and placing long-term strain on your HVAC equipment. Meeting the 3–4 CFM requirement is crucial not only for passing code but also for maintaining your home’s overall energy efficiency and comfort.

Your technician will also provide skilled recommendations to resolve leakage problems so you can reach a passing score, decrease energy costs, and improve home performance.

Local Energy Audits — affordable duct leakage test in Sea Girt, NJ

Local Energy Audits proudly covers Sea Girt, NJ and all nearby towns. We specialize in assessing duct leakage and energy inefficiencies with blower door tests and duct leakage tests. Whether it’s a new build or a current home, we’re here to support you.
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 by sealing all the ducts and registers with duct mask tape on both the supply and return side.

After the registers are sealed, we set up the duct tester by attaching it to the unit or a main return.

The ducts are then set to a depressurized pressure of 25 Pascals. Once there, we use the nanometer to capture the leakage reading.

Schedule Your Duct Leakage Test in Sea Girt, NJ

Ensure your HVAC system is efficient, compliant, and performing at its best with professional duct leakage test in Sea Girt, NJ. Whether you’re a homeowner improving comfort or a contractor completing a final inspection, our certified team provides fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and supply on-site guidance to help you pass your test, reduce energy loss, and maintain the long-term health of your HVAC system.

📞 Call 888-213-3975 ✉️ Request a Quote

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