Certified Air Balancing Company for HVAC & General Contractors

Air balancing—also called TAB (Testing, Adjusting, and Balancing)—is the process of measuring and adjusting airflow in your HVAC system to ensure each space receives the correct amount of conditioned air according to design specifications. Without proper balancing, some rooms get too much air while others get too little, leading to comfort complaints, failed inspections, and wasted energy.

Most jurisdictions require TAB certification before issuing a Certificate of Occupancy for commercial buildings. Beyond compliance, proper air balancing improves occupant comfort, reduces energy costs, extends equipment life, and eliminates hot/cold spots that lead to callback complaints.

Our TAB reports include measured versus design airflow for each diffuser and register, supply and return air quantities, fan performance data (RPM, amperage, static pressure), system static pressures, outdoor air measurements, and recommendations for any deficiencies found. Reports are formatted to meet local inspection requirements and can be customized for your jurisdiction.

Timing depends on system size and complexity. A single rooftop unit with 10-15 registers typically takes half a day. Larger commercial projects with multiple systems may take 1-3 days. We’ll give you a time estimate when you call for a quote.

Pricing varies based on the number of systems, ductwork complexity, register count, and location. Call Ghazi at (908) 323-9780 for a quick estimate—we can usually give you a ballpark figure in a few minutes.

We typically schedule within a few days of your call. For urgent jobs—like a contractor waiting on final inspection—we offer expedited service and can often accommodate next-day appointments. Call us and let us know your timeline.

We serve HVAC contractors, general contractors, and facility managers throughout Maryland, Washington DC, Virginia, Pennsylvania, Delaware, New Jersey, and New York. We’re based in Elkridge, MD.

We hold certifications from the leading industry bodies: National Comfort Institute (NCI), National Environmental Balancing Bureau (NEBB), The Building Performance Institute (BPI), and Association of Energy Engineers (AEE). All our testing aligns with ASHRAE 170 standards for air quality and ventilation.

We work on commercial buildings of all types including office buildings, retail spaces, restaurants, medical facilities, schools, warehouses, and multi-family residential. We serve both new construction and existing buildings needing recommissioning or troubleshooting.

Yes. We specialize in healthcare compliance testing including Air Changes Per Hour (ACH) certification for operating theaters, clean and soiled utility rooms, storage areas, and decontamination spaces. We also perform room pressure differential testing to ensure proper pressurization between adjacent spaces. Our testing helps medical facilities achieve TJC and CMS compliance.

Duct cleaning removes dust and debris from inside your ductwork. Air balancing measures and adjusts the airflow throughout your system to match design specifications. They’re different services—cleaning addresses air quality, balancing addresses air distribution and system performance.

Absolutely. We troubleshoot existing systems to identify why certain spaces are too hot, too cold, or have inadequate airflow. Our testing pinpoints the problem—whether it’s undersized ductwork, improper damper settings, or fan performance issues—and we provide recommendations to fix it.

Not necessarily, but we do need access to all mechanical rooms, rooftop units, and spaces being tested. Many contractors give us site access and we coordinate by phone. For occupied buildings, we’ll work around tenant schedules.

The basics: number of HVAC systems, approximate square footage, number of registers/diffusers, building type, and location. If you have mechanical drawings or a schedule of equipment, that helps us give a more accurate estimate—but it’s not required to get started.

Call Ghazi Hussain at (908) 323-9780 or fill out the contact form below. We’ll discuss your project, give you a quote, and schedule your air balance testing.