Duct Leakage Test in Millstone township, NJ

Make sure your HVAC system performs at its best and satisfies local energy standards with certified duct leakage test in Millstone township, NJ. Our certified technicians pinpoint and measure ductwork air leaks, helping homeowners and builders boost comfort, cut energy waste, and meet state compliance standards.

Why Duct Leakage Test is Important In Millstone township, 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 have some significant implications for home builders and HVAC contractors operating in the state. A Duct Leakage Test along with a Blower Door Test is now required for any newly constructed or remodeled home as outlined in the 2015 regulations. Did you know that ducts are frequently the biggest contributors to home air loss in Pennsylvania, New Jersey, and Delaware? Leaked air can escalate your energy costs, force your HVAC system to work harder, and move insulation and dust throughout your house. 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 begin the process of a duct leakage test in Millstone township, NJ, your technician seals off all supply and return registers apart from the main return or air handler. A duct blaster, which is a specially calibrated fan, is then installed at the opening. The fan depressurizes the ducts, helping identify all points where air may be escaping.

The duct blaster uses its precision pressure sensor partner to measure airflow and uncover duct leaks without causing any home disruption. 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 swift, clean, and carried out with no disturbance to residents. Most tests in Millstone township, NJ take 30 to 60 minutes to complete, and the benefits to comfort and efficiency can endure 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 detect small pressure differences, which indicate how much air is leaking through the ducts. Understanding this number enables you to recognize problem areas, consider efficiency improvements, and verify that your home meets local energy code requirements in Millstone township, NJ.

Cost of Excessive Duct Leakage

If you notice high energy costs, hot and cold spots, or ongoing HVAC repairs, duct leakage might be the underlying problem. According to ENERGY STAR, the majority of homes lose 20% to 30% of conditioned air through duct leaks. When outdoor temperatures enter your system, the HVAC must work harder to compensate, resulting in higher energy costs and reduced comfort.

Overworked equipment also leads to recurring breakdowns and higher repair expenses. Proper duct sealing helps strengthen the long-term function of your HVAC system, improving its lifespan and reducing ongoing maintenance costs.

Duct leaks can also cause dust, mold spores, and excess moisture — along with other contaminants — to infiltrate the duct system. This can make allergies worse, impact indoor air quality, and result in costly structural damage behind walls or ceilings as time passes.

How to Properly Seal Ductwork in an Old Home

The 2015 IRC/IECC mandates fully sealed duct systems in new homes, made from energy-efficient materials like mastic, foil tape, and proper insulation. But what if the leaks you’re dealing with are deep inside the walls or ceilings?

Aerosol sealing technology (AeroSeal) makes it possible to seal leaks found deep within the ductwork. To carry out the procedure, technicians seal off all vents except one access point. The HVAC system is isolated, and a machine is linked to the duct system. It pressurizes the ducts and releases a delicate aerosol sealant that settles into small gaps and holes traditional techniques can’t access.

This method is ideal for small to medium leaks. However, any large openings will still need manual sealing with mastic and tape. Technicians use a duct leakage test before and after aerosol sealing to evaluate how much leakage has been lowered and verify the results.

Common Areas of Duct Leakage

The most frequent point of air leakage in ductwork is the joints. Multiple metal parts are pressed together using tight fittings and metal bands, although these junctions are seldom airtight.

As your HVAC system provides heating and cooling year-round, the ducts repeatedly expand and contract. Over time, this movement weakens joint connections, producing gaps and leaks — making duct leakage test essential for both new and older homes in Millstone township, NJ.

Many energy auditors evaluate duct leakage by feeling around the duct system and using a small tool to check the size of joint gaps. 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 should stay under 4 CFM per 100 square feet with the air handler attached, or 3 CFM per 100 square feet without it. For new construction, a duct leakage test must be passed before any home is eligible to receive an occupancy certificate.

If your home in Millstone township, NJ does not meet duct leakage standards, you are likely overpaying for heating and cooling — and adding unnecessary strain to your HVAC equipment. Meeting the 3–4 CFM requirement is key not only for staying code-compliant but for maintaining energy efficiency and consistent comfort in your home.

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 Millstone township, NJ

Local Energy Audits proudly serves customers throughout Millstone township, NJ and surrounding areas. We specialize in revealing duct leakage and energy inefficiencies through blower door and duct leakage test. Whether your project is new or existing, 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 duct mask tape being placed on all ducts and registers on both the supply and return sides.

After the registers are sealed, we attach our duct tester to the system’s unit or to the main return.

The ducts are then reduced to a depressurized state of 25 Pascals. With them depressurized, the nanometer gives us the duct leakage reading.

Schedule Your Duct Leakage Test in Millstone township, NJ

Ensure your HVAC system is operating efficiently, compliant with code, and performing optimally with high-quality duct leakage test in Millstone township, NJ. Whether you’re a homeowner boosting comfort or a contractor finalizing an inspection, our certified team delivers fast, accurate, and affordable testing.

We use industry-standard duct blaster equipment and offer on-site guidance to help you pass your test, improve energy efficiency, and safeguard your HVAC system’s long-term health.

📞 Call 888-213-3975 ✉️ Request a Quote

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