Sliding door sticks or is difficult to slide

Cause

Rollers (wheels) are worn or damaged

Repair

  • remove the door and replace rollers

Cause

The roller track  is damaged

Repair

  • remove the door and replace the track

Cause

Rollers need cleaning and/or lubricating

Repair

  • ensure that roller assemblies and tracks are unclogged and cleaned − door thresholds and window sills are particularly susceptible to corrosion and sticking if not kept clean
  • hardware components, roller assemblies and tracks can be lubricated with a wet silicone spray using a straw applicator

Cause

There is an obstruction on the track

Repair

  • remove obstructions on the track

Cause

The wheels need adjustment

Repair

  • release the grub screw and turn the cam to lift or lower the door

Cause

The lintel above is sagging

Repair

  • remove the architrave and facing and try to create a clearance between the frame and lintel; if not possible, the lintel may need to be replaced with a larger lintel

Cause

The building has settled

Repair

  • if the building has settled, consider re-levelling and/or levelled repiling during renovations; the door can then be adjusted. A building consent may be required for this work