Automatic Doors and the Air Inside Your Building

Every time an entrance opens, some of the heated or cooled air inside is exchanged with the air outside. How much depends on how often the door opens, how long it stays open and how the entrance is laid out. An automatic door does not remove that exchange, but it changes how it happens.

Office corridor door with an exit device, a door closer and a card reader

What makes a difference

how long the door stays open after each person passes through, which is set when the door is adjusted
sensors that open the door for people approaching it, not for people walking past
a vestibule, with two sets of doors and a space between them, at busy entrances
seals and weatherstripping on the door and frame
a door that closes fully every time instead of stopping partway

Whether a change would make a noticeable difference depends on your entrance and how it is used. We review that on site; this page does not promise a particular result.

When to ask us to look at an entrance

the door stays open longer than it needs to
the door opens when people walk past rather than toward it
drafts or temperature changes near the entrance
the door does not close fully

A 40-mile radius of Sacramento, CA, plus north to Oroville, Chico, Red Bluff, Anderson and Redding. Sending a request does not book an appointment.

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For the door types we work on, see Commercial Doors.