When selecting timber windows, one crucial distinction you’ll come across is whether the timber has been treated or left untreated. While both options may appear visually similar at first glance, the differences in long-term performance, resilience, and maintenance requirements are substantial.
At Mumford & Wood, every one of our timber windows is crafted from treated European Redwood, ensuring outstanding durability and a lifespan you can rely on. Here’s a closer look at what sets treated and untreated windows apart - and why it matters.
What Does ‘Treated Timber’ Mean?
Treated timber has been specially processed with protective treatments to enhance its performance against common threats, including moisture, decay, and insect infestation. These treatments penetrate the wood, forming a barrier that significantly improves its resilience in various environmental conditions.
Key Benefits of Treated Timber Windows
- Better Protection Against Rot: Treatment reduces the timber’s ability to absorb water, which helps prevent fungal decay.
- Longer Service Life: With proper care, treated windows can last over 60 years - a sound long-term investment for your property.
- Pest Resistance: Treatment helps deter common timber pests, including termites and wood-boring beetles.
- Lower Maintenance Needs: Treated wood maintains its strength and structure longer, requiring fewer touch-ups and interventions.
At Mumford & Wood, we take it a step further - each window benefits from a factory-applied three-coat microporous paint system, which further shields the timber and reduces maintenance over time.
What About Untreated Timber?
Untreated timber windows are made from wood in its raw, natural state, with no added preservatives or weatherproofing treatments. While some homeowners are drawn to its organic character, untreated timber is generally less practical for exterior use unless you're prepared for regular upkeep.
Drawbacks of Untreated Timber Windows
- Higher Risk of Rot: Exposure to rain or damp conditions can cause untreated timber to deteriorate rapidly.
- Increased Vulnerability to Insects: Without chemical defence, untreated wood is a prime target for pests.
- Ongoing Maintenance: You’ll need to regularly sand, stain, or paint the windows to keep them protected.
- Shorter Lifespan: In exposed or damp environments, untreated timber will degrade more quickly and may require replacement sooner.
Why Treated Timber Is the Superior Choice
For most properties, especially those in the UK’s ever-changing weather, treated timber is the more durable, efficient, and cost-effective choice. It offers:
- Peace of mind through increased durability and performance
- Visual consistency with finishes that last
- Less disruption from maintenance and repairs over time
Mumford & Wood’s Approach to Timber Quality
We use only sustainably sourced European Redwood, selected for its natural strength and treated to the highest standards. All our timber is FSC®-certified, ensuring that it comes from responsibly managed forests. Our treatment and finishing processes are designed to make sure your windows not only look stunning, but also stand up to decades of British weather.
Making the Right Choice for Your Property
If you’re planning a renovation, extension, or new build, choosing the right timber window isn’t just about looks - it’s about investing in materials that last. Treated timber offers a reliable solution that balances beauty, performance, and peace of mind.
Explore the full range of bespoke timber windows and doors by requesting a Mumford & Wood brochure, or get in touch for a tailored quote for your next project. Whether traditional or contemporary, our treated timber windows are crafted to elevate your home for years to come.
