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APPROVED | CERTIFIED| TRUSTED
WHY CHOOSE OUR ACCOYA WINDOWS?
With over three decades of experience, our skilled in-house team understands the unique requirements of London’s conservation areas, ensuring that our windows not only meet but exceed industry standards.
When choosing Landmark Windows, you receive:
- A complimentary site survey and personalised design consultation
- Superior craftsmanship emphasising bespoke detailing
- Traditional slimline profiles paired with discreet, high-performance glazing
- Advanced draught-proofing for exceptional energy efficiency
- Premium-grade ironmongery provided as standard
- Expert replication and replacement of sash bay windows and doors
- Fully in-house installation by skilled professionals
- A reputable, family-run business with decades of expertise
- Recommended by conservation specialists throughout London
- Swift project turnaround with an unwavering focus on quality
- Exceptional customer satisfaction, backed by glowing reviews
THE BENEFITS OF ACCOYA
Accoya offers several significant advantages over other types of wood used for sash windows, especially for homes in London.
Superior Durability & Resistance to Weathering: Accoya undergoes a unique acetylation process, making it highly resistant to rot, decay, and insect damage. This makes it particularly suitable for London’s varied and often wet climate.
Longer Lifespan: Accoya windows last 50+ years above ground, outperforming standard hardwoods – even in harsh conditions. Factory spray-painted, they last significantly longer than traditional timber – cutting maintenance costs, plus, skipping paint won’t void the rot guarantee. Ideal for hard-to-reach areas like upper floors, Accoya offers a long-lasting, low-maintenance solution.
Enhanced Thermal Insulation: Accoya wood’s thermal properties are improved due to its dense structure. Combined with double glazing, it offers superior insulation, which is crucial for energy efficiency in London homes.
Environmental Sustainability: Accoya is made from sustainably sourced wood, and its production process is eco-friendly. It has a very low environmental impact and a long lifespan, which reduces the frequency of replacement windows.
LONDONS FINEST ACCOYA WINDOWS
Landmark, we have long specialised in traditional timber windows and doors, our premium choice is now the finest Accoya timber. Our joiners have invested tens of thousands of hours refining the craft, producing what many consider the highest-quality Accoya sash windows available in London.Our premium double-glazed Accoya sash windows deliver exceptional insulation—keeping homes warm on the coldest nights—while enhancing the character of any property with authentic Georgian, Victorian, or Edwardian detailing. Beautiful, efficient, and built to last, these windows offer year-round comfort and meaningful reductions in energy usage.From simple replacements to the most intricate like-for-like reproductions, we’ve mastered every style, scale, and architectural requirement. With Landmark, even the most complex heritage installations are completed with unmatched precision, craftsmanship, and care—ensuring every window is a perfect balance of performance and period charm.
