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How to Maintain Window Seals and Hardware?

June 2, 2025

Proper window care extends their lifespan, ensures energy efficiency, and keeps your home comfortable. Many forget that not only the window itself, but also seals and hardware require regular maintenance. Here are some useful tips.

Why maintenance is important?

Seals prevent drafts, heat loss, noise, and moisture. Over time, rubber can harden, crack, or deform. Dirt and moisture can accumulate in the hardware, making it harder to open or close windows.

How often?

Inspect and maintain seals and hardware at least twice a year — in spring and autumn. It’s especially important before winter.

Seal maintenance:

Cleaning
Wipe seals with a soft damp cloth. Avoid aggressive cleaners.

Lubrication
Apply silicone spray or rubber care products. This keeps seals elastic. Apply a thin layer along the entire seal.

Inspection
Check for cracks, tears, or wear. Replace damaged seals.

Hardware maintenance:

Cleaning
Remove dust and dirt with a soft brush or cloth.

Lubrication
Use general-purpose oil or dedicated window hardware lubricant. Apply moderately.

Check operation
Ensure hinges, locks, and screws work smoothly and are securely fixed.

Drain hole cleaning:

Regularly clean drainage holes at the bottom of the frame with a thin brush or toothpick to ensure proper water drainage.

Conclusion

Regular maintenance helps prevent costly repairs, saves energy, and keeps your windows functioning smoothly for years.