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How to Clean & Maintain UPVC Windows

man fixing upvc window

Key Takeaways for Cleaning & Maintaining UPVC Windows:

  • Clean your windows every 2-3 months with a gentle detergent and lukewarm water.
  • Always rinse with cold water after cleaning to avoid warping.
  • Clean the glass with a soft cloth and a mild glass cleaner for a streak-free shine.
  • Inspect and lubricate hinges regularly to ensure smooth operation.
  • Address any faults or damages immediately to prevent complications.
  • Use a soft cloth and avoid abrasive materials for cleaning.
  • Never use harsh chemicals like ammonia or bleach.
  • Regular cleaning and maintenance will extend the lifespan of your UPVC windows.

Table of Contents

Understanding the significance of UPVC window maintenance is crucial for homeowners. Upvc windows are known for their durability and aesthetic appeal, require regular care to ensure they remain in optimal condition.

UPVC Windows Maintenance Checklist

Cleaning with DetergentUse a gentle detergent mixed with lukewarm water to remove dirt and grime.Every 2-3 months
Rinsing with Cold WaterSpray windows with cold water after cleaning to cool down the UPVC material.After every detergent cleaning
Glass CleaningClean the glass pane with a soft cloth and a mild glass cleaner for a streak-free shine.As needed
Hinge InspectionRegularly inspect the hinges for any stiffness or misalignment.Every 6 months
Lubrication of HingesIf stiffness or squeaking is noticed, lubricate the hinges with a recommended product.As needed
Checking for FaultsInspect for any faults or damages and address them immediately to prevent complications.Annually or when noticed
Aesthetic MaintenanceRegular cleaning to maintain the visual appeal of the window.As needed

The Importance of Routine Cleaning

Routine cleaning is not just about preserving the window’s appearance; it’s about ensuring its longevity. By keeping your UPVC windows clean, you can easily spot any potential issues or damages, ensuring they are addressed promptly.

before and after photo

Effective Cleaning Techniques

1. Choosing the Right Cleaning Solution and Application

  • Mix a gentle detergent with lukewarm water.
  • Apply the solution gently on the UPVC surface using a soft cloth or sponge.
  • Clean in a circular motion to effectively remove dirt and grime.

2. Rinsing with Cold Water

  • After cleaning, rinse the windows with cold water.
  • This helps cool down the UPVC material to prevent warping or damage.

3. Glass Cleaning Tips

  • Use a soft cloth and a mild glass cleaner for the glass pane.
  • Apply the cleaner and wipe in a zigzag motion for a streak-free shine.
  • Ensure the glass is clear for enhanced overall look.

4. Adjustments and Repairs (Hinge Area)

  • Regularly inspect hinges for misalignment or stiffness.
  • Lubricate with a recommended product like 3 in 1 dry lube if needed.
  • Tighten any loose screws for smooth operation.

5. Aesthetic Maintenance

  • Regularly wipe down the window frames.
  • Check for scratches or discoloration and address them as needed.
How To Maintain & Clean UPVC Windows Tutorial

UPVC Window Maintenance FAQ

A1: It's recommended to clean your UPVC windows every 3-4 months to maintain their appearance and functionality.

A2: Yes, a mixture of vinegar and water can be an effective cleaning solution for UPVC windows. However, avoid abrasive materials that could damage the surface.

A3: If hinges are stiff, lubricate them with a recommended product like a 3-in-1 dry lube. This helps ensure smooth operation and extends the life of the hinges.

A4: Regular cleaning and maintenance are key. Avoid harsh chemicals and prolonged exposure to direct sunlight to minimize the risk of discoloration.

A5: It's generally not recommended to power wash UPVC windows as the high pressure can cause damage. Stick to gentle cleaning methods with soft cloths and mild detergents.

A6: Minor scratches can often be buffed out using a fine-grade sandpaper or a specialized UPVC window repair kit. For deeper scratches, it's advisable to consult a professional.

A: If the glass in your UPVC window breaks, it's important to replace it as soon as possible to prevent further damage and ensure the safety of your home. To replace the broken glass, you can either contact a professional window glass repair service or attempt to replace it yourself if you have the necessary skills and tools.


Maintaining UPVC windows is a straightforward process that requires regular attention and care. By following the above guidelines, homeowners can ensure their UPVC windows remain in top condition, both functionally and aesthetically, for years to come.

Picture of Phillip Sharp
Phillip Sharp

Phillip Sharp has spent more than three decades honing his skills as a glazier in Sydney. He is currently employed at Splendid Window Glass Repairs, where he specializes in glass replacement and repair in the Sydney Eastern Suburbs area. With his wealth of experience and commitment to excellent craftsmanship, Phillip is highly respected in the industry and trusted by clients to provide top-quality work.