How to Spray Paint UPVC Windows and Doors Using Aerosols.


Transform old or discoloured UPVC windows and doors with a smooth, professional spray finish — no trade skills needed. In this guide, we’ll show you how to clean, prep and spray UPVC using aerosol paints for a long-lasting finish. At the end, you’ll find all the recommended products and safety essentials.

  • Step 1

    Use a UPVC cleaner to remove dirt, grease, and surface contaminants.

    ☑️ Avoid soap residue as it can affect paint adhesion.

  • Step 2

    Use a fine sanding pad (e.g., 800 grit) to key the surface. Wipe away dust with a clean microfibre cloth.

  • Step 3

    Use masking tape, Masking Paper and plastic sheeting to protect glass, handles, and nearby brickwork or floors.

  • Step 4

    If spraying over old, chalky or damaged UPVC, apply a plastic-compatible primer. Let it dry fully.

  • Step 5

    Shake the aerosol for 2–3 minutes. Always test on a cardboard scrap first.

  • Step 6

    Hold the can 15–20cm away and apply light, even coats. Start and stop off the surface to avoid drips.

  • Step 7

    Allow 15–20 mins between coats. Apply 2–3 coats for full opacity.

  • Step 8

    For extra protection or gloss, finish with a clear coat.

  • Step 9

    Unwrap the high-quality results by carefully inspecting and removing all tape after completion. Your project will shine proudly.

❓Frequently Asked Questions

Do I need to sand UPVC before painting?

Yes — lightly sanding helps the paint bond better to smooth surfaces like UPVC.

Will spray paint last on UPVC?

When applied correctly, spray paint can last for years. Always clean and prep properly.

Can I paint UPVC Windows and doors in cold weather?

It’s best to spray between 10°C–25°C in dry conditions.

🛒 Recommended Products

🦺 Safety Equipment