How to Fix Door Lock Problems

Intermediate 30-60 minutes

Door lock problems can compromise your security and convenience. Learn how to diagnose and fix common door lock issues safely.

Common Problems & Solutions

Sticky Lock

When a lock is difficult to turn or requires extra force.

Solution:

  1. Clean lock with compressed air
  2. Apply graphite powder
  3. Work key in and out
  4. Remove excess lubricant
  5. Test lock operation

Misaligned Lock

When the lock and strike plate don't line up properly.

Solution:

  1. Check door alignment
  2. Tighten hinge screws
  3. Adjust strike plate
  4. File strike opening if needed
  5. Test lock engagement

Broken Key/Lock

When dealing with a broken key or damaged lock mechanism.

Solution:

  1. Extract broken key if present
  2. Inspect lock mechanism
  3. Remove lock assembly
  4. Replace damaged parts
  5. Test new installation

What You'll Need

Screwdrivers
Graphite lubricant
Metal file
Level
Lock repair kit

Maintenance Tips

Lubricate locks every 6 months with graphite powder

Avoid using WD-40 in locks - it attracts dirt

Keep spare keys in a safe place

Check door alignment periodically