Mumford & Wood - Timber Windows & Doors
Are Wooden Windows Painted Prior to Double Glazing?

Are Wooden Windows Painted Prior to Double Glazing?

Explore the craftsmanship behind timber window production at Mumford & Wood, and discover why painting before glazing is essential for longevity, performance, and beauty.

About the Authors

Mark Spencer

Matthew Blaylock

Managing Director

Freya Olley, Head of Marketing for Mumford & Wood

Freya Olley

Head of Marketing

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When investing in bespoke timber windows, one of the most common questions asked is: Are the windows painted before the double glazing is installed? At Mumford & Wood, the answer is a resounding yes. Our windows are expertly painted before the glazing is fitted, a meticulous process that ensures every surface is protected and finished to the highest standard.

This approach not only guarantees long-term durability but also preserves the refined appearance our customers expect.

Why Paint Timber Windows Before Glazing?

Painting timber prior to glazing isn’t just a finishing touch; it’s a critical part of ensuring durability, moisture resistance, and long-term visual appeal. By coating all surfaces before the glazing is inserted, we ensure that even hidden joints and internal edges receive complete protection from the elements.

This method helps prevent water ingress, UV damage, and general wear, all while contributing to a flawless final look.

Our Advanced Four-Coat Factory Finish

At Mumford & Wood, our reputation for craftsmanship extends to every detail, including our painting process. Each window is finished with a market-leading, factory-applied microporous paint system, specially designed to protect the timber without compromising breathability.

What Sets Our Finish Apart?

  • Four-Coat Microporous System: Our paint system allows the timber to breathe while forming a durable barrier against rain, sun, and seasonal weather changes, helping to prevent cracking, warping, or peeling.
  • Complete Surface Protection: Because the windows are painted prior to glazing, the entire frame, including concealed areas, is fully coated. This results in superior protection and extends the lifespan of each window.
  • Tailored Colour Options: We offer a broad palette of heritage tones and contemporary finishes to suit any architectural style. Whether you’re restoring a period property or specifying windows for a new build, your finish can be personalised to your vision.
  • Precision Craftsmanship: Every stage of the painting process is carried out by skilled technicians, with quality control checks in place to ensure a smooth, elegant, and consistent finish across every unit.

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When Is the Glazing Installed?

Once the painting process is complete and fully cured, the double-glazing units are fitted. Mumford & Wood uses internally beaded glazing for a clean, secure appearance. Our standard units are engineered with:

  • 4mm Annealed or Toughened Glass
  • 16mm Argon-filled cavities between panes
  • Advanced draught sealing systems

For those seeking enhanced thermal or acoustic performance, we also offer Krypton and Xenon gas-filled options on request. These noble gases offer outstanding insulation properties, making them ideal for properties that prioritise energy efficiency or are located in high-noise areas.

The Benefits of Pre-Painted Timber Windows

Choosing pre-painted windows offers more than just visual appeal. Here’s why our method leads to better results:

  • Long-Term Protection: Every surface is sealed before installation, safeguarding timber from moisture and environmental stressors.
  • Consistent Finish Quality: Painting before glazing ensures even coverage, free from masking lines or inconsistencies.
  • Reduced On-Site Work: Pre-painted windows are installation-ready, reducing project timelines and the need for additional site finishing.

Why Choose Mumford & Wood?

We specialise in premium timber windows and doors that combine classic aesthetics with high-performance design. Our products are:

  • Made from sustainably sourced, engineered timber
  • Fully customisable in design, finish, and glazing
  • Delivered with factory-finished paint for lasting durability

Every stage of production, from timber selection to painting and glazing, is handled in-house with the same attention to detail that has made Mumford & Wood a trusted name in high-end joinery for decades.

Discover Our Craft

Want to see how it all comes together? Book a factory tour and experience the care and detail that goes into every timber window we produce.

Whether you’re planning a restoration, self-build, or a design-led renovation, Mumford & Wood offers window solutions that are as technically impressive as they are visually timeless.

Start Your Project with Confidence

Browse our full collection of bespoke timber windows online or request a brochure to explore finishes, styles, and glazing options. Ready to talk? Get in touch for a tailored estimate - we’d love to help bring your vision to life.

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