Duct Leakage Test in Port Republic city, NJ

Make sure your HVAC system is performing efficiently and meeting local standards with thorough duct leakage test in Port Republic city, NJ. Our certified technicians measure and identify ductwork air leaks, assisting homeowners and builders in boosting comfort, limiting energy waste, and maintaining state compliance.

Why Duct Leakage Test is Important In Port Republic city, NJ

Many states and municipalities oversee single-family buildings under the 2015 IECC, International Energy Conservation Code and multi-family buildings under the 2018 International Energy Conservation Code. The change will have some significant implications for home builders and HVAC contractors operating in the state. A Duct Leakage Test paired with a Blower Door Test is now expected for newly constructed and remodeled homes in accordance with the 2015 code requirements. 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 indispensable no matter the age of your home. Continue reading to understand why duct leakage test is important and the benefits it provides.

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How a Duct Leakage Test Is Conducted

To begin performing a duct leakage test in Port Republic city, NJ, your technician closes off all supply and return registers except the main return or air handler system. A specially calibrated device known as a duct blaster is then attached to the duct opening. Its purpose is to depressurize the system so that escaping air can be detected.

The duct blaster works in sync with a precision pressure sensor to assess airflow and find duct leaks without disturbing your living space. 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 fast, tidy, and causes no disruption for residents. Most tests in Port Republic city, NJ are performed within 30 to 60 minutes, and the positive impact on comfort and efficiency can remain for years.

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 evaluate small pressure shifts that signal air escaping through the ducts. Understanding this number allows you to pinpoint problem areas, assess needed improvements, and confirm whether your home satisfies local energy code requirements in Port Republic city, NJ.

Cost of Excessive Duct Leakage

If you’re struggling with expensive utility bills, inconsistent indoor temperatures, or continual HVAC problems, duct leakage might be the culprit. According to ENERGY STAR, the average home loses 20% to 30% of conditioned air through leaky ducts. Outside hot or cold air leaking into your system puts extra strain on your HVAC unit, raising energy bills and decreasing comfort.

Overworked equipment also leads to recurring breakdowns and higher repair expenses. Proper duct sealing helps support the long-term durability of your HVAC system, lengthening its lifespan and minimizing ongoing maintenance demands.

Duct leaks can also enable dust, mold spores, elevated moisture, and unwanted contaminants to infiltrate the duct system. This can trigger more severe allergies, diminish indoor air quality, and create expensive structural problems behind walls or ceilings over time.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC requires newly built homes to install fully sealed duct systems using advanced materials like mastic, foil tape, and quality insulation. But what happens when air leaks are concealed deep in the walls or ceilings?

Aerosol sealing technology (AeroSeal) allows technicians to seal leaks located inside inaccessible parts of ductwork. To perform this method, all vents are sealed off except for one access point. The HVAC system is isolated, and a machine is connected to the duct system. It pressurizes the ducts and pushes a fine aerosol sealant through them, sealing small holes that ordinary sealing methods can’t reach.

This method is extremely effective for sealing small to medium leaks. However, big gaps may still need manual sealing using mastic and tape. Technicians conduct a duct leakage test before and after aerosol sealing to measure how much the leakage has been reduced and ensure the treatment is successful.

Common Areas of Duct Leakage

The most typical place where ducts leak air is at their joints. Ductwork is built from multiple metal sections pressed tightly with fittings and metal bands, yet these joints are rarely airtight.

As your HVAC system heats and cools during seasonal changes, the ductwork expands and then contracts. Over time, this movement shifts and loosens the joints, resulting in gaps and leaks — which is why all homes in Port Republic city, NJ, new or older, benefit from duct leakage test.

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 is missing mastic and approved tape sealing, there’s a significant chance that air leakage is happening.

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

To achieve a passing duct leakage result, your system has to measure below 4 CFM per 100 square feet with the air handler installed, or 3 CFM per 100 square feet without the air handler. For new construction, passing the duct leakage test is a necessary step before securing an occupancy certificate.

If your home in Port Republic city, NJ cannot achieve a passing duct leakage score, you are likely wasting money on heating and cooling — and increasing wear on your HVAC system over time. Meeting the 3–4 CFM requirement is important not just for compliance, but for safeguarding your home’s comfort and long-term energy efficiency.

Your technician will also provide expert recommendations on how to address leakage issues so you can achieve a passing score, lower your utility bills, and improve your home’s overall performance.

Local Energy Audits — affordable duct leakage test in Port Republic city, NJ

Local Energy Audits is proud to work with customers in Port Republic city, NJ and all nearby areas. We specialize in uncovering duct leakage and energy inefficiencies using both blower door tests and duct leakage tests. Whether you’re starting a new build or improving a current home, we’re here to assist.
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 all the ducts and registers sealed tightly using duct mask tape on both sides—supply and return.

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 exactly 25 Pascals. Once this is achieved, the nanometer is used to read the duct leakage.

Schedule Your Duct Leakage Test in Port Republic city, NJ

Ensure your HVAC system maintains top efficiency, remains compliant, and delivers strong performance with dependable duct leakage test in Port Republic city, NJ. Whether you’re a homeowner optimizing comfort or a contractor completing mandatory inspections, our certified team ensures fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and provide hands-on guidance to help you pass your test, reduce wasted energy, and ensure the long-term health of your HVAC system.

📞 Call 888-213-3975 ✉️ Request a Quote

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