Doors & Hardware

BuildingWrench repair guide

Doors & Hardware

Commercial Door Hinge Screws Keep Loosening: Find the Real Cause

Hinge screws that repeatedly loosen may indicate stripped holes, hinge wear, wrong fasteners, door sag, vibration, or a damaged frame reinforcement. Re-tightening every week is not a repair.

Last reviewed 2026-09-12 · General facility-maintenance information, not a substitute for site procedures, manufacturer instructions, codes, or qualified professional judgment.

Routine facility fixSkill: Beginner-friendlyFormat: Diagnose → Fix → Test
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Safety boundary

Preserve required egress, fire-door, security, and accessibility functions after any adjustment.

Full troubleshooting steps are in Pro

The safety boundary, quick answer and stop-work conditions above stay free. Pro opens the likely causes, symptom table, step-by-step procedure and preventive maintenance for this guide.

Stop and call a licensed professional when

  • Frame reinforcement is damaged
  • Fire-door hinge requirements are uncertain
  • Repair requires welding or major frame work

Mistakes, FAQ, parts and tools

Pro opens the rest of this guide: common mistakes, field FAQ, the parts list, and the tools for the job.

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Commercial Door Rubbing the Frame: How to Find the Cause

A rubbing door usually means hinges loosened, the door sagged, the frame shifted, weatherstripping swelled, or floor clearance changed. Use rub marks and reveal gaps before adjusting hardware.

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Commercial Door Closer Won’t Close the Door: What to Check

A commercial door that stops before latching may have the closer adjusted too slowly, weak spring power, binding hinges, weatherstripping resistance, frame misalignment, or building pressure. Check mechanical drag before turning closer valves.

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Commercial Door Hinge Squeaking: Clean, Lubricate, or Replace?

A squeaky hinge may only need cleaning and the correct lubricant, but recurring squeaks can indicate dry bearings, wear, misalignment, or excessive door load.

Doors & Hardware

Commercial Door Won’t Latch: A Simple Alignment Checklist

A commercial door that closes but will not latch is often sagging slightly, rubbing, hitting a misaligned strike, or moving too slowly through the final inch. Use wear marks and door gaps to identify what shifted before filing or moving hardware.