Transform Your Home: How to Paint uPVC Windows for the Best Results

Are you looking for a cost-effective way to update the look of your home without breaking the bank? Painting your uPVC windows could be the answer you’re looking for. uPVC windows are durable, low-maintenance, and energy-efficient but can fade and discolour over time. Fortunately, painting them is a simple and affordable DIY project that can transform the appearance of your home. In this guide, we’ll walk you through the steps you need to take to achieve the best results.

Materials You’ll Need

These are the materials you’ll need:

  • uPVC primer
  • uPVC paint
  • Sandpaper (180 and 240 grit)
  • Masking tape
  • Paintbrushes (one for the primer, one for the paint)
  • Paint roller (optional)
  • Paint tray (optional)
  • Cleaning solution (such as warm water and detergent)


Start by cleaning your windows thoroughly with warm water and detergent, paying particular attention to any dirt or grime around the edges. Rinse the windows with clean water and allow them to dry completely.

Next, use masking tape to cover areas you don’t want to paint, such as the glass or the handles. This will ensure a neat finish and prevent any accidental spills or splatters. You should also remove any silicone sealant around the edges of the windows, as this can prevent the paint from adhering properly.


Once your windows are clean and dry, it’s time to sand them down. This will create a rough surface for the primer and paint to adhere to, ensuring a long-lasting finish. Start with 180-grit sandpaper and work your way up to 240-grit, using light, circular motions. Be careful not to sand too hard, which can damage the uPVC.


Before you start painting, you’ll need to apply a coat of uPVC primer. This helps the paint adhere to the uPVC and ensure a smooth, even finish. Make sure your windows are completely dry before you start priming.

Apply the primer with a paintbrush, using long, even strokes. Be careful not to apply too much, which can cause drips and runs. If you prefer, you can use a paint roller or sprayer for larger areas, but follow the manufacturer’s instructions.

Allow the primer to dry completely before applying the paint. This usually takes two to four hours, but check the manufacturer’s instructions for specific drying times.


Now it’s time to paint your windows. Choose a high-quality uPVC paint in the colour of your choice. Apply the paint with a clean paintbrush, using long, even strokes. Again, be careful not to apply too much, as this can cause drips and runs.

If you’re painting a large area, you may find it easier to use a paint roller. This will help you achieve a smooth, even finish and save time. However, be careful not to apply too much pressure, which can cause the paint to bubble or peel.

Allow the first coat of paint to dry completely before applying a second coat. This will ensure a more even finish and better coverage. Check the manufacturer’s instructions for specific drying times.


Once your second coat of paint is dry, you can remove the masking tape and reapply any silicone sealant around the edges of the windows. This will help to prevent draughts and keep your home warm and energy-efficient.


Painting your uPVC windows is a simple and affordable way to update your home’s look. With the right materials and a little preparation, you can achieve a professional-looking finish that will last for years. Whether you’re looking to add a pop of colour or simply refresh the appearance of your home, painting your uPVC windows is a DIY project that’s well worth the effort. So why not give it a try and see the results for yourself?

Colour My Windows is a luxury spray painting uPVC windows specialist in Birmingham. We have been providing painting and property maintenance services for over 50 years. Established in 1963, our family-run business prides itself on delivering high-quality service on time and with no fuss. If you want to know more about how to paint uPVC windows, get in touch with us! Get a quote today. 

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