Sliding Door Track Repair or Replacement: How to Tell

Start with a thorough cleaning

A track packed with sand can look and feel damaged. Vacuum it, wipe it and dry it, then run your finger along the rail. What's left is the track's true condition.

Damage that's usually repairable

Many track problems can be repaired:

• Small dents or bent sections
• Light wear grooves from rollers
• Surface roughness or minor pitting
• A worn rail that can accept a track cap

Damage that may need more

Some conditions go beyond a simple repair:

• Deep corrosion that has eaten through the metal
• A track that's part of a frame that is cracked or out of square
• Damage along most of the track's length

Don't forget the rollers

A damaged track wears out rollers, and bad rollers can damage a track. It makes sense to evaluate both together so a repair lasts.

Repair vs. replacement

For most doors, repairing the track — straightening, smoothing or capping it — restores smooth operation at a fraction of the cost of replacing the door. When the frame itself is failing, replacement becomes worth discussing.