How much does it cost to repair or replace a commercial door closer?
Adjusting an existing door closer that is closing too fast, too slow, or not latching properly typically costs between $75 and $200 including labor, since this is often a quick service call rather than a parts replacement. Replacing a failed door closer, needed when the unit is leaking hydraulic fluid or has internal damage beyond adjustment, typically costs $150 to $400 for the unit and installation, with heavier-duty commercial closers and those rated for larger or fire-rated doors generally costing more than a standard light-duty closer. Fire-rated doors require closers specifically listed for that use, so a mismatched replacement closer can void the door's fire rating even if it physically fits.
Why does my commercial door slam shut or close too fast?
A door closer that lets the door slam shut is typically out of adjustment rather than fully failed, since most commercial door closers have separate adjustment screws controlling closing speed, latch speed, and backcheck (which cushions the door as it approaches full open). Over time, hydraulic fluid inside a closer can also degrade or leak, reducing its ability to control closing speed even with the adjustment screws set correctly, in which case adjustment alone will not fix it. A slamming door is not just an annoyance, since it accelerates wear on the door, frame, and hardware, and can be a safety hazard in high-traffic areas. A technician can typically resolve simple slamming through adjustment in a few minutes.
How often should panic hardware and exit devices be inspected?
Panic hardware and exit devices on commercial doors, especially those serving as required fire exits, should be inspected at least annually as required by many fire and life safety codes, with some jurisdictions and building types requiring more frequent documented checks. An inspection typically confirms the hardware releases the latch with a single motion under the required force, that the door fully closes and latches after release, and that no aftermarket modifications, such as added locks or chains, have compromised the device's ability to function as designed in an emergency. Panic hardware found chained or padlocked during a fire inspection is one of the most common and serious code violations found in commercial buildings.
Why can't a fire-rated door have just any hinges or hardware installed?
Fire-rated doors are tested and labeled as a complete assembly, meaning the door, frame, and hardware together must match a tested and listed combination in order for the door to perform as rated during an actual fire. Installing hinges, closers, or locks that are not specifically listed for fire door use, even if they physically fit and look similar to compliant hardware, can void the door's fire rating and create a code violation, since an inspector cannot verify performance of untested hardware combinations. Any hardware replacement on a labeled fire door should use hardware specifically listed for that door's rating, and a facilities manager should keep documentation of what was installed.
How often should door hinges be lubricated and checked?
Commercial door hinges should generally be checked for tightness and lubricated at least once or twice a year as part of routine facility maintenance, with high-traffic doors benefiting from more frequent attention given the faster wear from repeated use. A squeaking hinge is usually just in need of lubrication, while a loose or wobbly hinge indicates worn screw holes or a hinge pin that needs replacement rather than just lubrication. Neglected hinges are a common contributor to doors that drag, bind, or fail to latch properly, since a sagging door caused by worn hinges throws off the alignment the rest of the door hardware depends on.
What is the difference between a door closer and a door operator?
A door closer is a mechanical or hydraulic device that simply controls the speed and force of a door closing after someone has opened it manually, and it does not open the door itself. A door operator, sometimes called an automatic door opener, actively opens the door, typically activated by a push button, motion sensor, or automatic trigger, and is required for many accessible entrances under accessibility codes. Door operators are considerably more expensive to install and maintain than standard closers, given their added motor, control electronics, and sensor components, and typically require more frequent professional service to keep the automatic function working reliably.
Why does my commercial door not latch even though it closes?
A door that closes but does not latch is commonly caused by a misaligned strike plate, meaning the latch is no longer lining up with the opening in the frame it needs to enter, which often happens gradually as a building settles or a door sags on its hinges over time. It can also be caused by a worn or damaged latch mechanism itself, or a door closer with the latch speed adjustment set too fast, causing the door to bounce off the frame before the latch fully engages. This is a security and, on fire doors, a code compliance issue, since an unlatched door does not provide the protection it is rated for. Check strike plate alignment against the latch as a first diagnostic step.