roomoutsideuk
07th May, 2025

Timber vs uPVC: Which is Best for Your Glass Extension?

When planning a premium glass extension, one of the most common questions we hear is: “Should I choose timber or uPVC for the frame?” In this article, we’ll explore the key differences between timber vs uPVC, so you can decide which material best suits your home, lifestyle, and long-term investment.

Both options have their strengths, and the right choice often depends on your priorities in terms of style, performance, and maintenance.


The Beauty and Character of Timber

Timber has long been the go-to material for traditional and heritage-style homes. Its natural look adds warmth, charm, and timeless character to any property.

Benefits of Timber Frames:

  • Aesthetics: Nothing matches the organic beauty of real wood.
  • Customisation: Timber can be painted or stained in a wide range of colours.
  • Longevity: When properly maintained, timber can last for decades.
  • Eco-Friendly: Sustainably sourced timber is a renewable material with a low carbon footprint.

However, timber does require ongoing maintenance to keep it in top condition. Regular repainting and protection from moisture are essential to avoid warping or decay.


The Smart Efficiency of uPVC

uPVC (unplasticised polyvinyl chloride) is a popular alternative, especially for homeowners looking for a low-maintenance, thermally efficient solution. But not all uPVC is made equal.

At Room Outside, we only use top-grade uPVC systems engineered for long-term durability, superior insulation, and a flawless finish.

Benefits of High-Quality uPVC Frames:

  • Low Maintenance: No painting or staining required.
  • Durability: Premium uPVC resists fading, warping, and discolouration (unlike cheap alternatives which may yellow and crack).
  • Energy Efficient: Excellent thermal performance helps lower energy bills.
  • Cost-Effective: Generally more affordable than hardwood timber.
  • Contemporary Styling: Clean lines and modern finishes suit a wide range of architectural styles.

What About Cheaper uPVC?

While budget-friendly uPVC might seem appealing, it often fails to perform over time. Lower-grade materials tend to yellow, become brittle, and can significantly reduce the lifespan and appearance of your glass structure.

By contrast, the premium uPVC we use is designed to maintain its integrity and visual appeal for decades with minimal upkeep.


So, Which Should You Choose?

If your priority is a classic, traditional look and you don’t mind some occasional maintenance, timber is a beautiful, heritage-rich option. For those who prefer modern styling, easy upkeep, and excellent insulation, high-quality uPVC is a smart, reliable choice.

Either way, Room Outside offers expertly crafted options tailored to your preferences and built to last.


Ready to explore your perfect glass extension?

Download our brochure today and start planning your dream space with Room Outside.

Download our brochure today and start planning your dream space with Room Outside.

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