Why windows start to creak

Why windows start to creak: practical guide

Summary

• Creaks usually come from moving parts: hinges, locks, tracks, rollers.
• Causes: dirt, lack of lubrication, corrosion, worn parts or frame deformation.
• Silicone and PTFE (Teflon) dry sprays are best for PVC windows; avoid heavy oils.
• Cleaning mechanisms often solves the problem without part replacement.
• Maintenance: check and lubricate hardware 1–2 times a year.
• Call a professional if there are visible deformations, broken parts, or persistent jamming.

Introduction

A creaking window is an annoying sound and an early warning sign of increased friction or wear. This guide explains common causes, quick diagnostics, safe DIY fixes for PVC windows, recommended lubricants, preventive tips, and when to call a pro.

Main causes of creaking

• Hinges and hardware. Dry or dirty hinges and moving parts are the most common source.
• Dirt and small particles. Sand and dust in tracks and mechanisms increase friction.
• Corrosion. Rust on metal parts produces noise and impairs movement.
• Worn bearings and rollers. Over time parts lose their geometry and lubrication.
• Frame or sash deformation. Temperature changes and poor installation can cause binding.
• Seal deterioration. Hard or damaged seals change the sash fit and create rubbing.
• Incorrect adjustment. Uneven clamping increases contact and noise.

How to diagnose (quick checks)

1. Open and close the sash slowly and listen carefully to locate the sound.
2. Visually inspect hinges, locks, and rollers for dirt, rust, and play.
3. Feel for any looseness — a loose hinge or bolt often causes noise.
4. Check seals for cracks, wear, or misalignment.

If opening becomes difficult or the sash binds, attend to the problem promptly to avoid further damage.

Step-by-step repair for PVC windows

1. Preparation: open the window and protect the sill with a cloth.
2. Cleaning: remove dust and grime with a soft brush and cloth. Use a toothbrush for tight spots.
3. Rust removal: gently remove rust with fine sandpaper or a felt pad, then clean residue.
4. Tighten screws and fasteners that are loose, but do not overtighten.
5. Lubrication: apply suitable lubricant to moving parts — hinges, rollers, locks.
   • Use silicone spray or PTFE (Teflon) dry spray for PVC windows.
   • Avoid heavy greases and mineral oils that attract dust.
6. Test the sash movement and repeat treatment if needed.

Recommended lubricants

• Silicone spray: safe for rubber seals and PVC profiles, resists moisture.
• PTFE (Teflon) dry spray: reduces friction, does not collect dust.
• Graphite powder: good for locks but messy for hinges.
• Avoid: heavy lithium greases, solildol, regular machine oils — they collect dirt.

Preventive measures

• Inspect hardware and seals twice a year.
• Keep tracks and profiles clean.
• After any repair, test the locking and clamping functions.
• Monitor seals during humid and cold seasons; replace if hardened.

When to call a specialist

• When adjustment and lubrication don’t remove the creak or binding.
• If rollers, bearings or other parts are visibly worn or broken.
• When hardware replacement or complex adjustments are required.

FAQ

Can I use WD-40 to stop creaks?

WD-40 can temporarily stop a creak because it acts as a cleaner/penetrant, but it is not a long-term lubricant. After using WD-40, apply silicone or PTFE spray for lasting effect.

Are silicone sprays safe for window seals?

Yes. Silicone sprays are safe for rubber seals and are commonly recommended for PVC windows.

Can I replace rollers myself?

Yes, if you have basic tools and follow the manufacturer’s instructions. For complex or warranty-covered windows, use a professional.

How much does window maintenance cost?

Costs vary by region and scope: simple lubrication and adjustment are inexpensive; hardware replacement costs more. Check local Latvian service rates and warranty terms.

Conclusion

Creaking usually signals lack of lubrication, dirt or wear. Most problems are solved by cleaning and using the right lubricant. Regular preventive maintenance extends the life of your windows and keeps them working quietly.