Scratches on UPVC (Unplasticized Polyvinyl Chloride) fixtures like windows and doors can be unsightly and compromise the appearance of your home. In this blog post, we’ll delve into the causes of UPVC scratching, explore preventive measures, and discuss effective repair solutions to restore the pristine condition of your fixtures.

UPVC Repair London

Understanding UPVC Scratching:

Here is some information on the science behind UPVC according to Fineline – “UPVC was first produced in 1935 and has been popular for industrial use for 50 years. It is manufactured with sodium chloride, from which chlorine gas is obtained via electrolysis. Petroleum or natural gas is then used to make ethylene. This puts together chlorine, ethylene and liquid vinyl chlorine. PVC stands for polyvinyl chloride – a chemical compound of chlorine, carbon and hydrogen. The U stands for unplasticised – meaning that it has not been softened by the addition of chemicals known as plasticisers. Heat and UV stabiliser additives are included to make them suitable for windows – allowing them to retain strength and colour throughout the elements.”

UPVC is known for its durability, but it’s not immune to scratches. Common causes of scratching include:

  1. Abrasive Materials: Contact with abrasive materials during cleaning or maintenance can leave scratches on UPVC surfaces.
  2. Impact Damage: Accidental impact from objects or debris can cause scratches, especially in high-traffic areas like door frames.
  3. Improper Handling: Rough handling during installation or maintenance can result in scratches on UPVC fixtures.

Preventing UPVC Scratching:

Taking preventive measures can help minimize the risk of UPVC scratching:

  1. Gentle Cleaning: Use mild, non-abrasive cleaners and soft cloths to clean UPVC surfaces, avoiding harsh chemicals and abrasive materials.
  2. Protective Measures: Place mats or rugs near UPVC doors to capture debris and prevent scratching from shoes. Consider using protective films or covers during construction or renovation projects to shield UPVC fixtures from damage.
  3. Careful Handling: Handle UPVC fixtures with care during installation, maintenance, and everyday use to avoid accidental scratching.

Repairing Scratched UPVC Fixtures:

While minor scratches may not affect the functionality of UPVC fixtures, they can detract from their appearance. Fortunately, several DIY and professional repair solutions are available:

  1. DIY Solutions:
    • Polishing Compounds: Mild scratches can often be buffed out using a polishing compound specifically formulated for UPVC surfaces. Apply the compound with a soft cloth, following the manufacturer’s instructions.
    • Touch-Up Pens: For small, shallow scratches, UPVC touch-up pens or markers can effectively conceal imperfections. Choose a colour that matches your fixture and carefully fill in the scratch.
  2. Professional Repairs:
    • Resurfacing Services: Professional UPVC repair specialists can resurface scratched fixtures using specialized equipment and techniques. This option is ideal for deep or extensive scratching that DIY methods may not adequately address.
    • Replacement Parts: In cases of severe damage, such as deep gouges or cracks, professional repair services may recommend replacing affected parts or components to restore the fixture’s integrity and appearance.


Scratches on UPVC fixtures can detract from the aesthetic appeal of your home, but with proper preventive measures and timely repairs, you can keep your fixtures looking their best. Whether you opt for DIY solutions or enlist the help of professionals, addressing UPVC scratching promptly ensures that your fixtures maintain their durability and visual appeal for years to come. Don’t let scratches spoil the beauty of your UPVC fixtures – take action to restore them to their former glory. For more information see our other blog on UPVC Repair.