Accoya Wood Windows & Doors

Accoya is the perfect durable, sustainable material for the construction of quality windows and doors. It is the industry’s leading timber. Harvested from sustainably sourced, fast-growing radiata pine trees, Accoya wood gets its strength and stability thanks to a special modification process called acetylation. Entirely non-toxic, this treatment gives it properties that exceed the durability of leading softwoods and hardwoods and benefits from a 50 year guarantee.

Our expert team of advisors, manufacturers and installers can use Accoya timber to transform your:

• Sash Windows
• Casement Windows
• Front Doors (e.g. Single Doors)
• French Door Frames
• Bi-Folding Door Frames

All our Accoya products come with a 50 year guarantee.

Accoya wood windows and doors won’t shrink, swell or warp, meaning they won’t jam and scrape, unlike many other traditional woods.

Accoya is indigestible to microorganisms, making it less vulnerable to insects, fungi and rot.

Accoya windows are less susceptible to UV damage.

Designed to hold paint or varnish for longer, meaning your Accoya windows and doors will look great for years to come with minimal amounts of upkeep.

Low thermal conductivity helps to keep more heat in.

Here at The Specialist in Traditional Sash Windows, we never cut corners when it comes to ensuring environmentally friendly Accoya windows and doors – from materials to manufacture. 

We pride ourselves on our bespoke sash window services, quality of workmanship and careful installation, as well as dedicated aftercare. We want to help you get the most out of your home and our expert team will advise and inform you along every step of the way.

Timber is the Clear Green Choice

The manufacture of timber windows uses eight times less energy than the production of uPVC windows. Plastic window manufacture also releases toxic chemicals into the atmosphere, e.g. the harmful carcinogen benzene (released during laser cutting). We therefore exclusively use timber for our window and door frames, with Accoya being our most popular sustainable choice.

Learn more about Accoya: