If your conservatory is looking faded, yellow and outdated and you don’t want a full replacement, professional UPVC spraying could be the solution you are looking for.

This fast, cost-effective alternative to full replacement, completely transforms the appearance of your conservatory, improving curb appeal, longevity and overall property value.

In this guide, we’ll explain what’s involved in spraying a UPVC conservatory, its durability and overall benefits.

What is UPVC conservatory spraying?

This specialist renovation process is designed to change the colour or restore the finish of your UPVC frames without the need of replacement.

Unlike standard paint, professional UPVC coatings are specifically formulated to:

• Bond directly to the plastic surface
• Create a long-lasting weather resistant finish
• Restore the appearance of worn, discoloured frames

With the right preparation and specialist products, UPVC spraying can completely transform your conservatory, making it look brand new in the fraction of the time and cost of replacement.

Read our blog on UPVC spraying vs replacement.

Can you spray paint a UPVC conservatory yourself?

Technically yes, you can attempt to spray paint a UPVC conservatory yourself.

 However, the process is trickier than most homeowners expect, and achieving a professional, long-lasting finish can be challenging.

Challenges include:

• Specialist coatings are required to ensure proper adhesion to smooth UPVC surfaces
• Thorough surface preparation is critical to avoid peeling or uneven coverage
• Masking glass, trims and fixtures is time consuming and requires precision to prevent overspray
• Weather conditions such as rain, humidity or low temperatures can significantly affect the result.

Whilst DIY is possible for small areas to trims, a full conservatory spraying project is often best left to professionals to guarantee durability and a flawless finish.

Spraying a UPVC Conservatory: A step-by-step guide

Spraying a UPVC conservatory is a specialist, multi-step process that transforms worn or outdated frames without the cost of full replacement. Here’s what’s involved:

Step 1 – Deep cleaning and degreasing

Before any paint can adhere properly, the UPVC frames must be thoroughly cleaned and degreased:

• Remove dirt, dust and pollen that accumulate over time
• Degrease surfaces to eliminate oils or residues left by cleaning products
• Treat mildew, algae or mould for a clean, stable surface

Skipping this step can result in patchy coverage or peeling, so professional preparation is essential.

Step 2 – Sanding or lightly abrading the surface

Once cleaned, the UPVC is lightly sanded or abraded to create a surface the paint can grip:

• Professionals use fine abrasive pads or chemical adhesion primers depending on the condition of the frames.
• Light sanding also removes chalky layers, yellowing or minor imperfections, creating a smooth, even finish.

This step is critical as the paint will not adhere properly to smooth UPVC.

Step 3 – Masking glass, brickwork and fixtures

Spraying involves a fine mist, so masking is essential to protect surrounding areas:

• All glass panels are carefully covered
• Nearby brickwork, roof tiles, guttering and doors are protected
• Handles, locks and trims are taped or temporarily removed

Proper masking ensures a clean, professional finish with no overspray.

Step 4 – Apply the primer

Priming may be done as a separate layer or integrated into the specialist UPVC coating and is essential for:

• Improving durability and adhesion
• Enhancing colour coverage, especially for darker shades
• Protecting against environmental damage, adding an extra layer of UV and weather resistance

Proper priming sets the foundation for a smooth, long-lasting finish that will withstand the UK climate and everyday wear.

Step 5 – Appling the paint

Once the primer has cured, professionals carefully apply the specialist UPVC paint in multiple thin coats to achieve an even, long-lasting finish.

• Colour matching guarantees a consistent, modern finish whether updating white frames or switching to grey, black or other contemporary colours.

This careful application process delivers a flawless, modern look that dramatically improves your conservatory’s appearance.

Step 6 – Curing time

After spraying the frames need time to cure fully:

• Typically, 24-48 hours before the conservatory can be used
• Larger conservatories or humid conditions may require longer
• Proper curing ensures the finish is weatherproof, scratch resistant and long-lasting

Allowing the paint to cure properly guarantees a durable, professional finish that will last for years.

How long does a sprayed UPVC conservatory last?

One of the biggest questions homeowners ask is how long a sprayed UPVC conservatory will last.

The answer depends on whether the work is done professionally or as a DIY project, and on several environmental factors.

Professional spraying typically lasts 10-15 years when done with proper preparation, specialist coatings and suitable weather conditions.

DIY spraying usually lasts 2-5 years, often shorter if the UPVC isn’t properly sanded, primed or coated.

Factors affecting lifespan:

• Sunlight exposure: South-facing conservatories may fade faster

• Weather during application: Rain, humidity or low temperatures can compromise adhesion

• Colour choice: Darker colours absorb more heat and may fade slightly quicker

• Maintenance: Gentle cleaning with non-abrasive products preserves the finish

Hiring a professional ensures a durable, long-lasting and visually flawless finish that will keep your conservatory looking modern for years.

Read our blog on how to maintain your sprayed UPVC.

Professional UPVC conservatory spraying

A freshly sprayed UPVC conservatory can completely transform the look of your home, giving it a modern, clean and well-maintained appearance all without the cost or disruption of full replacement.

At Spray Vue, we specialise in professional UPVC spraying for conservatories, windows, doors and more.

Whether you want to refresh faded frames, change colour or improve curb appeal, Spray Vue delivers fast, high-quality results that homeowners love. Get a free no obligation quote today and see how Spray Vue can make your conservatory look brand new