Nationwide
Lead Times
Installation
Finance
Accoya Windows & Doors
Timber Windows and Doors, Built To Last
Accoya windows and doors represent the gold standard in timber joinery. At Spittlywood, we design and build bespoke Accoya windows and doors from our Kent workshop, combining traditional craftsmanship with a material that has been engineered to outperform everything else on the market.
Every project begins with a consultation where we listen to what you need. From there, our team uses CAD software to design your windows or doors before manufacturing them by hand in our workshop. The result is a bespoke installation that is built precisely for your property and built to last.
Why Use Accoya
Accoya is a modified timber created from sustainably sourced wood. It undergoes a proprietary, non-toxic acetylation process that permanently changes the wood’s composition right to the core, giving it qualities that no standard hardwood or softwood can match.
The result is a timber that stands up to the British weather, resists rot, repels insects and holds paint far longer than traditional woods. Over the years, our clients have increasingly asked for windows and doors that combine a high-end look with a genuinely extended lifespan. Accoya is the answer to that. Having used it across a wide range of projects, we now recommend it as our wood of choice for all external joinery.
Spittlywood are official Accoya partners, one of only a small number of companies in the UK to hold this status.
Bespoke Joinery Design
Expert Craftsmanship & Installation
Sustainable Timber & Finishes
The Benefits
Of Accoya Windows & Doors
- Exceptional Stability
- Outstanding Durability
- Superior Paint Performance
- Improved Insulation
- Resistant to Insects & Mould
- Sustainably Sourced
Accoya Certification
Spittlywood Ltd has completed the necessary training programme and is an official, manufacturer-certified Accoya partner. This means every Accoya installation we carry out comes with a manufacturer-backed 50-year warranty, giving you complete confidence in the longevity of your investment.
Bifold Doors
Alu Clad Windows
Casement Windows
Sash Windows
French Doors
Lift & Slide Doors
Stormproof
Entrance Doors
Blinds and Shutters
Accoya Lasts A Lifetime
Accoya windows are built to last a lifetime. This video follows a family through the years, watching children grow up and life move on, while the Accoya windows remain exactly as they were on the day they were fitted. No warping, no rot, no repainting. Just the same high-quality timber, weathering the British climate year after year. It is a simple reminder of what you are investing in when you choose Accoya.
Accoya FAQs
What is Accoya?
Accoya is a high-performance modified timber made from sustainably sourced wood. It undergoes an acetylation process that permanently alters its cell structure, giving it exceptional stability, durability and resistance to rot, insects and moisture.
How long does Accoya last?
When used above ground, Accoya carries a 50-year manufacturer-backed warranty. In-ground or freshwater applications carry a 25-year guarantee. Both significantly exceed the lifespan of standard timber.
Is Accoya more expensive than standard timber?
Yes, Accoya is priced above standard woods. However, its significantly longer lifespan, reduced maintenance requirements and superior paint performance mean it offers far better value over time.
Is Accoya suitable for painted finishes?
Yes, it is one of the best timbers available for painted finishes. The acetylation process improves dimensional stability, which means paint lasts up to twice as long as it would on untreated timber.
Will Accoya windows and doors warp or stick?
No. Accoya’s swelling and shrinkage is reduced by 75% or more compared with standard timber, so your windows and doors will operate smoothly in all seasons without sticking or warping.
Is Accoya an environmentally responsible choice?
Yes. Accoya is produced from FSC-certified, sustainably sourced timber and has a minimal carbon footprint. It is also non-toxic throughout its production and lifespan.
Does Accoya resist insects?
Yes. The wood is impenetrable to woodworm and other biological threats, a particular benefit for properties in rural or wooded areas.
Do you offer a warranty on your Accoya installations?
All of our Accoya installations come with the manufacturer-backed 50-year warranty. Get in touch to discuss your project and we will be happy to talk you through what is covered.
Still Have Questions?
Trusted & Accredited
Fensa Approved
Our installations meet all current building regulations and are fully certified, giving you confidence that everything is done properly and compliantly.
Trading Standards Checked
Independently approved for fair trading and professional standards, so you can trust who you’re dealing with from start to finish.
PAS 24 Security
Our products are tested to meet strict security standards, helping to keep your home protected from forced entry.
Secured By Design
A police‑backed scheme that confirms our products are designed to deter crime and improve home security.
UK‑Wide Delivery &
Installation Across the South East
We supply Accoya windows and doors across the UK and offer installation throughout Kent, London and the South East. If you have a contractor already on site, we are happy to coordinate with your builder to ensure a seamless fit and full compliance with all relevant standards.
