There are many decisions that need to be made when it comes to developing a residential or commercial property. From structural and architectural considerations, to specifying materials for windows and doors, should you choose wood for your windows and doors?


Homeowners who are considering buying timber windows and doors may falsely assume that there is always a high level of maintenance and upkeep required to ensure they maintain their condition and do not rot. Most homeowners don’t realise they have the option to choose wooden windows or solid wood doors which do not need lots of maintenance.


Accoya® wood is the perfect material for wooden window frames and external wooden doors and wooden window shutters as it offers improved thermal insulation properties in comparison with commonly used hardwood and softwood wood species and it is more durable and dimensionally stable than the best tropical hardwoods. Accoya® wood has an enhanced coatings performance and can last twice as long, saving time, money and hassle. It also has a 50 year above ground guarantee, giving complete confidence that Accoya® windows and doors will stand the test of time. An Accoya® wooden window or door is developed to excel in external applications, even in challenging conditions.

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Choosing Accoya® wood for your window frames gives you the reassurance of a superior, high performance wood that is long-lasting. Rivalling traditional hardwood timbers including oak, Accoya® windows will not shrink, swell or jam and will continue to open effortlessly all year round. For the same reasons, Accoya® is also perfect for wooden shutters.


A leading independent institute has announced that Accoya® wooden window frames are carbon negative which sets a new benchmark for sustainability.


Accoya® is the ideal wood for exterior timber doors. Its outstanding stability and durability, far exceeds the benefits of traditional hardwood doors including oak.


External wooden doors are required to be durable and dimensionally stable to prevent doors becoming difficult to open and close in bad weather. Accoya® wood meets these criteria and has been successfully used worldwide to create simple or complex designs in a variety of challenging environments. From external solid wood front doors, to patio, bi-folding and garage doors, Accoya® wood is the material of choice.


Accoya® wood is backed by decades of research and development, meaning that you can be assured of high performance windows and doors every time. Find out more about the features and benefits of choosing Accoya® for your timber windows and doors.

  • MADE TO LAST –Accoya® is the best wood for windows and external wooden doors as it is guaranteed not to rot or noticeably swell for at least 50 years. Accoya® is more durable and stable than all the other joinery woods.
  • CONSISTENT QUALITY – Accoya® wood is modified from the surface to the core; therefore, every piece of Accoya® is consistent. The BBA assessed material does not require any chemical preservatives to be applied when cut or planed.
  • LOW MAINTENANCE – Factory applied paint coatings last longer on Accoya® wooden windows and external timber doors. Typically double the maintenance interval of traditional painted windows
  • BEAUTIFUL & BESPOKE – Accoya® wood is a naturally beautiful material easily used to replace windows, timber sash windows, historic and contemporary windows and doors.  A full range of colours can be applied in the factory prior to delivery to meet the design requirements.
  • VALUABLE INVESTMENT – Accoya® wood windows and doors deliver long term performance and with better thermal values, provide cost savings through energy reductions. By investing in high performance windows and doors, it can add value to your home.
  • SUSTAINABILITY THAT ENDURES – Accoya® is 100% non-toxic and produced from FSC® timber. Accoya® wood achieved the Gold standard in Cradle to Cradle assessment.


Superior whole life cost for windows

A study with a Dutch window producer and a maintenance company shows that Accoya® wood windows are initially more expensive, but have a lower total cost than UPVC, aluminium, pine and hardwood windows over the lifetime of the home.

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Coating test at Teknos – BM TRADA 7 year results

A weathering test was set up by Teknos (UK) Ltd who is an Accoya® wood system supplier. The coating supplier provides coatings for cladding, wooden doors and windows.


The test began in 2009 to obtain natural weathering performance data, end grain sealing and profile design impact of three different coated timber substrates, Accoya® wood, western red cedar and Siberian larch.

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Durability testing is run for extended periods, to local standards at locations across the world including New Zealand. Accoya® is tested alongside CCA H4, Teak and western red cedar at the SCION graveyard test field in Rotorua. Stakes are inspected on 12 month intervals by the SCION staff and scored on a scale from 10 (perfect) to 0 (totally destroyed).


At the 10 year point only colour change has been noted for the Accoya® wood samples while all other wood types have either onset of decay or significant decay.

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Coatings and finishes

With Accoya® wood, its improved stability means coatings last up to two times longer, giving you a low maintenance solution for timber windows and doors.


Traditional exterior windows and doors, in oak or other hardwoods, need to be checked several times a year, to ensure there are no cracks in paintwork or varnish. Wear and tear in exterior coatings means that damp and moisture can creep in, which can see the onset of rot if not seen to straight away. The movement in oak, particularly, can cause cracks within the wood and coatings.

How do I buy Accoya® wood windows and doors?

Accoya® wood windows and doors are sold via manufacturers across the world.  Our distributors are timber specialists who can work with you to create bespoke styles and finishes for your window or door project.


If you’re looking to buy wooden windows or doors, please click on the button below to find an Accoya® wood distributor in your region or country of your choice. They will be able to provide you with timber window and doors prices for your next project.

Where to Buy


Extensive renovation project relies on Accoya® to deliver long-term solution

Accoya® wood was selected as the material of choice to renovate 410 windows The renovation of a poorly maintained industrial building in Avelgem, Belgium has been completed, with careful consideration paid to restoring original detailing. The building was in use until 2000, and then left to fall into ruin for 12 years. Following an extensive five year renovation project, it is now home to 59 apartments.
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Pair of passive houses in Zele, Belgium, use Accoya® wood for windows and facades

Accoya® wood selected for the windows and façade of two semi-open passive houses Joinery company Schrijnwerkerij Michiels selected Accoya® wood, supplied by Hout Bois van Steenberge, for the windows and façade of two semi-open passive houses in Rinkhout, Zele.
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Accoya® wood brings classic Georgian design into 21st Century

Accoya® selected to create ‘Legacy’ sliding sash windows and an entrance door for a luxury residential home in Essex. Accoya, the world-leading high performance sustainable wood was selected by expert bespoke joinery company, Westbury Windows & Joinery for a recent renovation project.
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Certified by Industry Bodies

Besides the independent environmental assessments through LCA and carbon footprint, we actively seek to acquire the most respected ecolabels available and have been recognized by others as an exemplary product and company in the field of sustainability on many occasions.