Door closer installation by a commercial locksmith

What this covers

Door closer installation fits or replaces the closer at the top of a door, the arm and body that pull the door shut after someone walks through. A working closer brings the door back at a steady speed and lets the latch catch, which helps keep business doors, storefronts and shared entrances closed. We fit new closers, replace worn ones, and adjust closers that slam, drift or leave the door open.

How we approach it

A closer is adjusted in stages: how fast the door swings, how it slows as it nears the frame, and the final push that lets the latch catch. We set each stage for the door and the way it is used, then test the door from different openings with the latch and lock in place. A door that slams, bounces or stops short can be a closer out of adjustment rather than a closer at the end of its life.

Where it stops

Closer work covers the closer, its arm and its adjustment. Automatic door openers are outside it, and so is fixing a door that has sagged or no longer closes square. If a closer has leaked its fluid, adjusting it will not bring the control back, and replacing it is the answer.

An oil stain under the closer, or on the floor below it, is a sign that the closer is leaking. A leaking closer loses its control: the door starts to slam or swing shut too fast, and eventually stops closing properly. That closer needs replacing rather than adjusting, because the fluid that controlled it is gone.

Seasons affect closers. Cold thickens the fluid inside, so a door can close slowly in winter and too fast in summer. A closer that is right in one season and wrong in another may need adjusting twice a year, which is a small job compared with a door that never latches in January.