Some rooms in your house never feel right: the upstairs bakes in July, the bonus room stays cold, and the bills keep climbing no matter what the thermostat says. A home energy audit is a paid, whole-house assessment. A Medford audit revealed a real load of about 5 tons and over 120,000 BTU of heat, nearly double the 3-ton system three other contractors had already quoted with no testing at all. Novus Mechanical runs the audit for homeowners in Freehold and across Monmouth County instead of guessing at the AC or the furnace. Air sealing alone saves about 15% on heating and cooling, according to ENERGY STAR, and the audit finds where the 15% is hiding.
An audit is not a quote. An audit is the testing done first. The testing measures how leaky a house is, how much air the ducts lose, and how much heating and cooling the home really needs. Most discomfort and most high bills trace back to the house itself, not the box in the basement, and homeowners cannot see those problems from the curb.
A home energy audit is a single paid visit where Novus measures how your house, ductwork, and equipment work together. It is the same kind of energy efficiency assessment homeowners across New Jersey book when a house runs hot, cold, or expensive to operate. Instead of chasing one symptom, the audit tests the whole system. That is the approach that turned a Medford homeowner's assumed 3-ton fix into a real 5-ton, 120,000 BTU load once the leakage was measured.
Novus runs the audit on existing homes around Freehold, mostly built from the 1970s through the early 2000s, plus the older Capes and colonials closer to town. Those homes share the same problems. First, air leaks. Second, ducts that lose air before it reaches the room. Third, equipment a previous contractor sized by matching the old unit instead of measuring it. We measure all of it and put a real number on each one.
Three contractors had already quoted a Medford homeowner the same 3-ton equipment swap. None of them tested anything first. Novus ran the audit instead. A blower door test read 4,460 CFM50 against about 2,200 sq ft of conditioned space, and the ductwork ran uninsulated through a crawl space with an open mechanical chase leaking straight to the attic. Feeding that leakage into a Manual J changed the number completely: the real load came out to about 5 tons and over 120,000 BTU of heat, nearly double the original 3-ton system. Improper sizing cuts efficiency by up to 30%, according to ENERGY STAR, exactly what an audit is built to catch before the equipment goes in. An audit turns findings like that into the Four Numbers behind every recommendation Novus makes: the load, the leakage, the static pressure (how hard the air has to push to get through your ductwork), and the score on the finished system.
A recent Rumson audit measured total static pressure at 0.957 in. w.c. (inches of water column, the unit static pressure is measured in) on one system, 19.6% past the 0.8 in. w.c. its blower was rated for. Here is what each of the four tests below is built to catch before a number like that gets missed.
| Test | What it finds | What it changes |
|---|---|---|
| Blower door test | Total air leakage for the house, measured with a calibrated fan | Whether the envelope gets sealed before anything else happens |
| Duct leakage testing | How much heated or cooled air the ducts lose before it reaches a room | Where duct sealing happens, and whether it happens at all |
| Manual J load calculation | The actual heating and cooling load, room by room | The size of any equipment Novus recommends |
| Thermal imaging | The specific spots losing insulation, air, or duct air | Where the fix list starts |
A home energy audit report is the ranked list of fixes that saves you the most comfort and money first, not a stack of numbers, since improper sizing alone can cut efficiency by up to 30%, according to ENERGY STAR.
The order matters. You decide with real data in front of you, not a sales pitch. Once we know how air moves through your home, room-by-room air balancing can also even out the hot and cold rooms the report flags. Every audit is answering the same four questions Novus checks on every job: the load, the leakage, the static pressure, and the score on the finished system. See how those Four Numbers fit together on how we work.
You own the report. Take it to another contractor and the measurements still hold.
Novus charges for the home energy audit on purpose. A free audit is really a sales call that has to make its money back by selling you equipment. You will see "free energy audit" advertised everywhere. That is exactly why a paid one is worth more.
A free audit is a sales call. The company giving it away has to make the money back by selling you equipment, so the "findings" point at whatever they install. When you pay for the assessment, you are paying for honest data about your house. The recommendations are about your home, not our inventory, since improper sizing alone can cut efficiency by up to 30%, according to ENERGY STAR, and no contractor giving away the diagnosis has a reason to say so.
That independence is what makes the report useful. It is also what separates a Novus audit from a free quote dressed up as a diagnosis. We hold National Comfort Institute Residential HVAC System Performance Technician certification (#25-142-01) and NCI Residential Air Balancer certification (#25-143-01), plus EPA #P165BDDE28EAD0701. The testing follows a standard, and the numbers guide the work.
Yes: if you are about to replace a system, the audit should come first, because that is where it pays for itself.
Most contractors size a new system by matching the old one, which was usually oversized to begin with. An oversized AC short-cycles, leaves the house humid, and wears out early. The audit feeds the blower door and load-calculation numbers straight into a right-sized central AC replacement, so the new system fits the real home. A right-sized system runs longer, pulls out more humidity, and costs less to run. Sometimes the audit finds a problem the Manual J has to wait on. A recent Rumson job measured static pressure at 0.826 in. w.c. and 0.957 in. w.c. on its two systems, the second one 19.6% past its blower's 0.8 in. w.c. rated maximum, both leaking return air out of a spray-foamed crawl space. Novus held off on a full load calculation until the duct problem itself gets fixed, since a load number run against ductwork about to change would just get thrown out.
Novus Mechanical holds a 5.0 average across 48 Google reviews from homeowners around Freehold and Monmouth County. We have served NJ homeowners since 2016 and are fully insured, with commercial general liability and workers' compensation coverage. Financing is available on larger projects, and you get the full price before any work starts.
Ready to find out what is really going on in your home? Schedule My Appointment and we will book your audit.
We measure your home, explain what we find, and hand you one clear price. Book a consultation in Freehold or Monmouth County.
Updated September 2026 by Novus Mechanical, Freehold, NJ
