An air curtain, also called an air door, air barrier, or air separation system, is a device mounted above or around a doorway that creates an invisible stream of air. This high-velocity airflow separates indoor and outdoor environments while allowing unimpeded access for people, vehicles, or equipment.
Whether you're managing a warehouse, food facility, or retail space, maintaining your air curtain system is essential to energy efficiency, air quality, and regulatory compliance.
At Loading Dock, Inc., we focus exclusively on the service, maintenance, and repair of air curtains in New Jersey and New York City.
Air doors are critical in commercial and industrial settings because they:
✓ Maintain interior climate conditions (heating and cooling efficiency)
✓ Purify air and reduce airborne contaminants (some systems kill 99.9% of viruses, including COVID-19)
✓ Prevent dust, dirt, and fumes from entering the building
✓ Block flying insects and pests from entering through open doors
✓ Support sanitation compliance in food service and healthcare facilities
✓ Lower HVAC costs and reduce energy waste
✓ Control odors and external pollution
✓ Provide a code-compliant alternative to vestibules
According to ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers), air curtains can prevent up to 80% of unwanted air exchange, making them a cost-effective energy-saving solution.
While many companies install and sell air curtains, our focus is on keeping them running. Over time, motors wear out, filters clog, and airflow patterns weaken. That’s where we come in.
Our experienced technicians service all major brands and models of commercial and industrial air doors.
We don’t just fix problems, we help prevent them. Our maintenance programs help you avoid costly breakdowns, reduce downtime, and extend the lifespan of your air curtain systems.
Some of the places that can benefit by installing an air door/air curtain are:
✓ Transportation terminals
✓ Education & institutions
✓ Train bay doors
✓ Hazardous & corrosive hospitals & health care
✓ Food service
✓ Cold storage
✓ Retail stores
✓ Hazardous & corrosive
✓ Shipyard doors
✓ Aircraft Hangar doors
✓ Manufacturing and warehouses
✓ Entertainment venues
✓ Loading docks
✓ Hangars
Loading docks are a major source of air infiltration. Even with dock seals or dock shelters, gaps remain: especially around the dock leveler lip, bumpers, and truck hinges. Air curtains provide a crucial secondary seal, reducing unwanted airflow and protecting indoor environments from dust, fumes, and outdoor temperatures.
We service loading dock air curtains throughout the NYC and NJ area, helping facilities maintain climate control, comply with code, and protect product quality during loading and unloading.
They offer many benefits such as:
✓ Climate control (maintaining interior temperature)
✓ Improve air quality: Air Purification (killing 99.9% of COVID-19) passing through the system
✓ Prevents debris, and dust from coming in
✓ Energy savings (by controlling your temperature)
✓ Insect control (preventing insects from entering through open doors)
✓ Ideal for cold storage applications (maintaining interior temperature)
✓ It keeps the atmosphere clean from airborne, pollution, smells, odours.
They can be up to 80% effective in preventing infiltration through an open door, according to the ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engineers) handbook.
In cold storage and freezer applications, warm air infiltration can drive up energy costs and stress cooling systems. A properly maintained refrigeration air door can reduce load on compressors and help stabilize internal temperatures, improving equipment longevity and operational efficiency.
We maintain industrial air curtains specifically designed for cold storage applications, ensuring reliable performance in temperature-sensitive environments.
Case studies like the one from McCormick Place West show real energy savings with properly functioning air curtains. With over 375 feet of open door space used daily during major events, the facility saved nearly $270 per hour when air doors were active, demonstrating substantial return on investment.
These results highlight why air curtain maintenance is just as important as the initial installation. A neglected system loses performance, while a serviced system pays you back in efficiency and reliability.
Our technicians are trained to work in high-traffic, regulated, and industrial environments with minimal disruption to your operations.
Whether your air barrier system is in a retail front or a 50-foot-high hangar, we’ve got the experience to keep it running.
We don’t sell or install air curtains, we specialize in keeping your existing systems in top condition.
Call us today for expert air door maintenance & repair at 201-340-0529 or contact us online to schedule service.
Let’s make sure your air door system is working at full capacity.