
Why Door Closers Fail — and What Our Technicians Check First
A door closer is a hydraulic-mechanical device mounted at the top or along the frame of a commercial door. Over time, the internal fluid that controls sweep speed and latch speed leaks past worn seals, leaving the arm with no resistance and the door swinging violently or barely moving at all. We also regularly find bent or cracked closer arms — common at high-traffic entrances like restaurants along Gervais Street or convenience stores on Two Notch Road where deliveries happen constantly. Before recommending any parts, our technician inspects the mounting bracket, checks the arm geometry against the door width, verifies the backcheck function, and tests both the sweep and latching zones. This thorough assessment means we never replace parts that only need an adjustment, and we never waste your time adjusting parts that are genuinely worn out.
Spring tension failures are another frequent cause: a closer that lets the door drift open or bounce back before latching has usually lost spring power and may also have a faulty latch speed valve. Fire-rated doors with this problem create a real life-safety gap, since the door must close and latch without manual assistance to perform its rated function. Our technicians are familiar with the ADA and NFPA 80 closing-force requirements that many Columbia commercial properties must meet, and we confirm compliance as part of every service call.
