Leaking Door Closer

Door Closer Leaking Oil

Door closers are integral to the proper closing of every door. When door closers leaks, it can lead to uncontrolled door closing, damage to both the door and the door frame.

Door Closer is Leaking Oil

Leaking oil can cause the door closer to seize in place.

Adjusting your door closer may need to be done occasionally. Luckily, it can be done quickly and easily by beginners. However, if none of these repairs work for your door closer, you may need to have it reinstalled or buy a replacement door closer.

Oil Leaking Door Closer

It is important to note the existing door closer’s size and marking, mounting hole dimensions and spring size. Are all of the necessary accessory items and parts, such as drop plate, door arms, brackets usable, or they need to be replaced as well.

If oil is leaking from your door closer, throw it away and buy a new one.
If the door closer is slamming, and the door and cannot be adjusted to do otherwise, either the fluid has leaked out, or the valve seals are worn out. Either way, your best option is to replace it.
If the door closer has no spring tension and the spring tension adjustment turns round and round with no effect, the spring is broken and the door closer must be replaced.

Commercial Door Closer Leaking Oil

When the oil drains from the cylinder, the closer’s ability to control the door is lost. If this were to occur, the door would swing freely. There are great service opportunities in replacing the leaking door closer. Door Closers that have oil leaking from the cylinder may present some risk to staff and personal – specifically the potential hazard it presents to those entering and exiting a doorway.

Door Closer Leaking Oil Repair

To fix this, we will use rust remover to clean the screw and replace the O-ring. Fasten the adjusting screw to the desired closing or latching speed level. Afterward, we will make sure no fluid is leaking and that the door closer is working properly.

In a commercial environment, the volume of traffic associated with the opening should dictate the intervals for service of any door closer mechanism. Special installations may require additional or more frequent service and maintenance.


When door closers lose their supply of oil due to leakage, they also lose their ability to effectively control the closing of the corresponding door. Not only is the resultant slamming of the door unpleasant for customers and employees, but a free-swinging door is also a safety hazard for anyone in the vicinity.