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Repair Guide

Common Sliding Door Problems and How to Fix Them

December 20, 20256 min read
Aluminium sliding door

Sliding doors are popular in Nepali homes for balconies and patios, but they can develop problems over time. Here's how to diagnose and fix the most common issues.

Problem 1: Door is Stuck or Hard to Slide

Symptoms:

Door requires force to open/close, jerky movement, or completely stuck

Possible Causes & Solutions:

Dirty or Clogged Track

Dust, dirt, and debris accumulate in the track over time.

Fix: Vacuum the track, then clean with a brush and soapy water. Dry completely and apply silicone lubricant.

Worn Rollers

Rollers wear out after years of use, especially with heavy doors.

Fix: Replace rollers (Rs. 600-2,000). This requires lifting the door off the track - best done by a professional.

Bent or Damaged Track

Track can bend from impact or settling of the building.

Fix: Minor bends can be straightened. Severe damage requires track replacement (Rs. 500-1,500).

Misaligned Door

Door has shifted off its track or is tilted.

Fix: Adjust the roller height using the adjustment screws at the bottom of the door. Call a professional if unsure.

Problem 2: Door Makes Squeaking or Grinding Noise

Symptoms:

Squeaking, grinding, or scraping sounds when opening/closing

Solutions:

  1. Clean the track - Remove debris that may be causing friction
  2. Apply silicone lubricant - Spray on rollers and track (NOT oil-based lubricants which attract dust)
  3. Check for loose screws - Tighten any loose hardware on the door frame
  4. Inspect rollers - Damaged or flat-spotted rollers cause grinding noises

Problem 3: Door Doesn't Close Properly

Symptoms:

Gap when closed, door bounces back, won't latch

Obstruction in Track

Small objects or debris preventing full closure.

Fix: Thoroughly clean the entire track length.

Misaligned Latch

Lock doesn't line up with the strike plate.

Fix: Adjust the strike plate position or the door height using roller adjustment screws.

Warped Frame or Door

Heat or moisture damage causing frame to bend.

Fix: May require professional frame adjustment or replacement.

Problem 4: Water Leaking Through Door

Symptoms:

Water entering during rain, puddles near door

Damaged Weather Seals

Rubber seals crack and harden over time.

Fix: Replace weatherstripping (Rs. 50-150 per running foot).

Clogged Drainage Holes

Sliding doors have weep holes to drain water. If clogged, water backs up.

Fix: Locate drain holes in the track and clear with a wire or small brush.

Gap Between Frame and Wall

Sealant around the frame has deteriorated.

Fix: Remove old sealant and apply fresh silicone sealant around the frame exterior.

Problem 5: Lock Not Working

Key Won't Turn

Fix: Apply graphite lubricant to the keyhole. If still stuck, the lock cylinder may need replacement.

Handle/Lock is Loose

Fix: Tighten the screws on the handle plate. If threads are stripped, replace with larger screws or use wall anchors.

Latch Doesn't Engage

Fix: Check if the door is properly aligned. The latch may not reach the strike plate if the door has dropped.

Maintenance Tips to Prevent Problems

  • 1.Clean tracks monthly - Vacuum and wipe down tracks to prevent debris buildup
  • 2.Lubricate every 3-6 months - Use silicone spray on rollers and tracks
  • 3.Check seals annually - Replace cracked or hardened weatherstripping
  • 4.Keep drainage clear - Check weep holes before monsoon season
  • 5.Don't force stuck doors - This damages rollers and tracks

Sliding Door Still Not Working?

Our technicians specialize in aluminium sliding door repairs. Same-day service available in Kathmandu valley.

Call 9861390719