Can You Paint uPVC Doors and Windows? (Pros, Cons & Better Alternatives)

Thinking of giving your home a fresh new look without replacing your windows and doors? You may be wondering: can you paint uPVC doors and windows?

The short answer is yes, it is technically possible to paint uPVC. But the better question might be: should you?

In this blog, we’ll explore how to paint uPVC doors and windows, the pros and cons of doing so, and why investing in new coloured uPVC products may be a longer-lasting, more cost-effective solution.

Can You Paint uPVC Doors and Windows?

Yes, uPVC doors and windows can be painted, but there are several things to consider:

• You’ll need the right type of specialist paint designed to adhere to plastic surfaces
• The surface must be properly prepared (cleaned, sanded, and primed)
• Results can vary depending on weather conditions, age of the frames, and application method
• Painted uPVC may not last as long or look as consistent as a factory-finished product

While it can be a budget-friendly short-term solution, painting uPVC is not always straightforward, and it comes with important limitations.

How to Paint uPVC Windows and Doors (Step-by-Step)

If you decide to go ahead, here’s a basic overview of how to do it properly.

Step 1: Clean Thoroughly

Use a degreasing solution (like sugar soap) to remove dirt, oils, and residues from the surface. This step is crucial for paint adhesion.

Step 2: Lightly Sand the Surface

Lightly abrade the surface using fine-grit sandpaper. This helps create a “key” for the paint to stick.

Step 3: Apply a Suitable Primer

Some paints are self-priming, but using a dedicated uPVC primer improves longevity and finish.

Step 4: Use uPVC-Compatible Paint

Choose a high-quality uPVC paint that’s weather-resistant and flexible. Popular options include Zinsser AllCoat, Bedec MSP, or Kolorbond.

Step 5: Apply with Care

Use a sprayer for the most even finish, or a foam roller/brush for smaller areas. Multiple thin coats are better than one thick coat.

Step 6: Let It Cure Properly

Follow the manufacturer’s instructions for curing time. Avoid touching or closing windows/doors until fully dry.

Potential Issues with Painting uPVC

While painting can refresh the look of your frames or door, it’s not without its downsides:

Durability Concerns

Painted uPVC doesn’t have the same lifespan as factory-coloured profiles. Peeling, cracking, or fading may occur within a few years, especially on sun-exposed areas.

Warranty Risks

Painting uPVC can void existing manufacturer warranties, particularly if it affects the frame’s thermal performance or causes damage.

Uneven Finish

Unless applied professionally, DIY painting can result in streaks, brush marks, or inconsistent coverage.

Colour Fading

Painted surfaces are more prone to UV damage, even with UV-resistant paint. Colours may fade or yellow over time.

Functionality Issues

Extra layers of paint around seals, hinges, or locking mechanisms can interfere with how the door or window opens and closes.

A Better Alternative: Coloured uPVC Windows and Doors

If you’re after a long-term solution that combines aesthetics and performance, a better option is to install new coloured uPVC doors and windows.

Why Choose Factory-Coloured uPVC?

• Long-lasting finish, the colour is bonded during manufacturing, not added after
• Available in dozens of colours, from classic Anthracite Grey to bold Chartwell Green
• No maintenance, no peeling or repainting needed
• Fully covered by warranty
• Compatible with modern glazing and security upgrades

Whether you’re updating your kerb appeal or completing a full renovation, factory-finished coloured uPVC offers better results without the risks of painting.

Popular Coloured uPVC Options

Here are just a few of the most in-demand colours:

• Anthracite Grey
• Black Ash
• Chartwell Green
• White Woodgrain
• Golden Oak
• Agate Grey

These finishes are now just as popular as white and can complement traditional or modern homes alike, all without a single drop of paint.

Paint or Replace?

So, can you paint uPVC doors and windows? Yes, but it’s not the ideal solution for everyone. While it may seem like a cost-saving shortcut, the potential for maintenance issues, fading, and voided warranties often outweighs the short-term benefits.

If you’re looking for a durable, stylish, and worry-free finish, upgrading to new coloured uPVC products is the smarter long-term investment.

FAQs: Painting uPVC Windows and Doors

Can I use any paint on uPVC?

No. You must use specialist uPVC-compatible paint that adheres to plastic and is weather-resistant.

Will painting uPVC void my warranty?

In most cases, yes. Altering the surface can affect performance and will usually void the manufacturer’s warranty.

How long does painted uPVC last?

Typically, 2–5 years depending on quality of paint and exposure to weather. Factory-coloured uPVC lasts much longer.

Can I paint my composite front door?

Technically yes, but the same issues apply. Most manufacturers advise against it, replacing with a coloured composite door is a better option.