Accoya® Timber Windows, Doors & Bespoke Joinery
High-performance timber joinery, built to last. Accoya is a modified timber engineered for long-term performance in demanding external environments. Used in our windows, doors and bespoke joinery, it delivers exceptional durability, dimensional stability and weather resistance. Helping your joinery look better and last longer.
A proven material for timber joinery
For external joinery projects, we specify Accoya timber as our material of choice. Engineered to overcome the natural limitations of traditional wood, it performs consistently across all weather conditions and over decades of use.
Whether you're installing new timber windows, external doors or architectural cladding, Accoya provides the reliability and longevity that high-quality joinery demands.
Our services
Designed To Fit
Sustainable and Versatile
High Performance In All Conditions
Accoya undergoes an acetylation process that modifies the wood at a cellular level, dramatically reducing moisture absorption and the movement that comes with it. The result is a timber that stays stable through seasonal weather changes, improving both performance and service life. It offers exceptional resistance to swelling, shrinking and warping, and remains highly durable even in exposed and moisture-prone environments. Coatings adhere better and last longer, reducing maintenance intervals over time.
LOW MAINTENANCE JOINERY
Less Movement. Less Upkeep. Lower Costs.
Because Accoya timber is highly stable, paints and surface finishes adhere better and last significantly longer than they would on conventional timber. Reduced expansion and contraction places less stress on coatings, maintaining both appearance and protection across seasons. For homeowners and property managers, this translates to fewer repainting and maintenance cycles, longer-lasting surface finishes and lower whole-life costs, making Accoya an exceptionally practical and cost-effective choice for external joinery.
APPLICATIONS
Accoya Timber Used Across A Wide Range Of Projects
We regularly specify and install Accoya across a wide range of applications, including timber windows in casement, sash and heritage styles, external timber doors, cladding and exterior architectural detailing, and bespoke joinery commissions. Its versatility allows us to deliver both traditional and contemporary designs without compromising on durability or performance. Suitable for windows, doors, cladding and external joinery, Accoya is also sustainably sourced and responsibly produced, and carries a 50-year above-ground durability guarantee.
HIGH PERFORMANCE MATERIALS
Accoya Makes The Difference
Timber joinery is only as good as the material behind it. Accoya allows us to manufacture windows and doors that hold their fit, finish and function over time, even in exposed conditions. Because the timber remains dimensionally stable after installation, it significantly reduces common issues such as sticking casements, cracked coatings and distorted frames. That means better performance, less maintenance and a result that stands the test of time.
LONG-TERM DURABILITY
Built To Last In Real-World Conditions
Accoya is among the most extensively tested modified timbers available, backed by decades of global performance data. It consistently outperforms traditional hardwoods in challenging environments including prolonged moisture exposure and ground contact. Carrying the highest durability classification (Class 1), it is suited to a wide range of external applications where long-term reliability is non-negotiable.
SUSTAINABLE TIMBER
Responsibly Sourced, Engineered To Endure
Accoya is produced from fast-growing, FSC-certified sustainably sourced timber using a non-toxic acetylation process. It delivers an exceptional service life without relying on harmful chemical treatments making it a responsible and future-proof choice for new build and renovation projects alike.
Precision-made using the right materials
At Precision Carpentry & Joinery Ltd, we combine premium materials with expert craftsmanship to deliver joinery built to last. Working across Cambridgeshire and Suffolk, we design, manufacture and install bespoke timber joinery tailored to each property from period restoration to contemporary new build.
Find Out More about Accoya®
Accoya is a modified timber engineered for long-term performance in demanding external environments - download our brochure
Planning a Joinery Project in Cambridgeshire or Suffolk?
If you're considering Accoya timber windows, external doors or bespoke joinery, we'd be happy to discuss your project. Contact Precision Carpentry & Joinery Ltd to arrange a free consultation and quotation.
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