door closer installation and repair can be appropriate when the door sags, rubs, sticks or has uneven gaps around the opening. Check the closer model against the ordinary door, mounting support and manufacturer limits before fitting or adjustment.
Signs: the door sags, rubs, sticks or has uneven gaps around the opening or the latch, handle, hinge or ordinary running hardware no longer lines up or operates normally. Causes: normal wear in hinges, latches or compatible mechanical hardware or local damage to an accessible component rather than an assumed structural defect.
The last part of the closing movement should be checked with the ordinary latch and frame. Increasing force is not a substitute for correcting an incompatible or misaligned latch. Any separate hinge or hardware repair needs agreement before extending the closer task.
A closer needs to suit the door it controls. Provide leaf dimensions and product weight where available. An oversized or undersized unit should not be compensated for with extreme adjustment, and unsupported heavy doors need a different handling assessment.
Install a suitable ordinary supplied surface closer, make permitted adjustments or replace an unsuitable leaking unit within the agreed scope. Limits: Ordinary non-rated surface-mounted mechanical units only. No fire, smoke or egress certification, powered systems, structural reinforcement or specialist mechanisms.