How to Repair Aluminium Windows: Complete Guide

Aluminium windows are durable and low-maintenance, but they can develop problems over time. This guide will help you identify common issues and decide whether to fix them yourself or call a professional.
Common Aluminium Window Problems
1. Stuck or Hard to Open Windows
Causes: Dirt buildup in tracks, warped frames, or damaged rollers.
DIY Fix: Clean the tracks with a brush and apply silicone lubricant. If rollers are worn, they need replacement.
Call a Professional If: The frame is bent or the window still doesn't move smoothly after cleaning.
2. Water Leakage During Rain
Causes: Damaged rubber seals, gaps between frame and wall, or clogged drainage holes.
DIY Fix: Clear drainage holes and apply silicone sealant to small gaps.
Call a Professional If: Seals need full replacement or the frame has shifted.
3. Broken Handles or Locks
Causes: Wear and tear, forcing stuck windows, or poor quality hardware.
DIY Fix: Simple handle replacements can be done with a screwdriver if you have matching parts.
Call a Professional If: The lock mechanism is internal or you can't find matching hardware.
4. Squeaking or Grinding Noise
Causes: Lack of lubrication, misaligned tracks, or damaged rollers.
DIY Fix: Apply silicone spray to tracks and moving parts. Avoid oil-based lubricants as they attract dust.
Call a Professional If: Noise continues after lubrication.
When to Call a Professional
While some repairs are simple DIY tasks, certain problems require professional expertise:
- Cracked or broken glass replacement
- Bent or warped aluminium frames
- Complete seal replacement
- Window not closing properly despite cleaning
- Multiple windows having the same problem
- Windows older than 15 years needing restoration
Aluminium Window Repair Cost in Nepal
| Repair Type | Estimated Cost (NPR) |
|---|---|
| Handle replacement | Rs. 300 - 800 |
| Roller replacement | Rs. 500 - 1,500 |
| Seal replacement | Rs. 50 - 100 per ft |
| Glass replacement | Rs. 150 - 400 per sq.ft |
| Full window overhaul | Rs. 2,000 - 5,000 |
* Prices are approximate and may vary based on window size and condition. Contact us for an accurate quote.
Maintenance Tips to Prevent Future Problems
- Clean tracks monthly - Remove dust and debris with a brush
- Lubricate moving parts - Use silicone spray every 3-6 months
- Check seals annually - Replace if cracked or hardened
- Don't force stuck windows - This damages handles and frames
- Keep drainage holes clear - Prevents water accumulation
Need Professional Window Repair in Kathmandu?
Our experts can diagnose and fix any aluminium window problem. Same-day service available for urgent repairs.
Call 9861390719