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Eurotech WinDoors® uses only natural durable timber for building windows and doors. We specialize in using the proven species Siberian Larch and Oak (North American Oak and European Oak).

We only process the durable heartwood of these species to guarantee the long lifespan of your joinery.

Siberian Larch


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Siberian Larch (Larix Sibirica)

Siberian Larch grows in Siberia, Europe and in North America (as Canadian Larch) and has a high natural resistance against decay. This has been shown in scientific investigations as well as from archaeological discoveries and practical observations.

The harsh climate in Siberia results in very hard durable timber with a density of 0.64 (g/cm3). Higher density makes it more difficult for the organisms that cause decay to penetrate the wood.

Siberian Larch is widely used as a durable timber for windows, decking and weatherboards.

European/American Oak (Quercus Alba)

The colour of oak heartwood is from light brown to brown. The heartwood is classified as class 2 durable (BS EN 350-2). The density ranges from 0.67 to 0.73 (g/cm3).. Oak has been known as an excellent durable boat building timber for centuries. Today it is widely used for flooring, wine barrels, exclusive furniture and joinery. European Oak is slightly dearer than Siberian Larch. Timber can get stained when in contact with metal fittings.

The Oak we use comes from sustainable farmed forestry in Germany and the USA (PEFC certified). Other species like Western Red Cedar, Dark Red Meranti or Macrocarpa can be used as well Please inquire about availability.

Laminated timber & Quality

Eurotech WinDoors® use only three-layer laminated timber because this system ensures that there is no twisting and warping of the sashes and frames, and it maintains a constant moisture level in the timber. The exterior lamellas quartercut (to prevent cracking), with a long grain, and we guarantee no knots or defects in the outside lamellas. Joinery profiles The timber profiles we use for our joinery are by far stronger than the profiles used for ordinary sash windows (usually only 40 mm). This results in stronger window sashes and frames, double tenon corner joints instead of single tenon joints, and better thermal properties.

Eurotech WinDoors® joinery profiles:

  • 68 mm by 83 mm for windows
  • 68 mm by 85 mm for doors
  • 68 mm by 110 mm for front doors.

Timber - Facts

The most amazing attribute of solid wood is that it isn’t inert like PVC, aluminium and other synthetic building materials. Wooden windows and doors are technically more complex than joinery made of synthetic materials.

Wood will actively try to maintain your comfort level by working with the surrounding environment. both absorbing and repelling vapour to achieve a natural and healthy balance.

Solid wood’s natural insulation qualities, combined with high heat capacity, result in a condensation free window or door frame.

Thermal regulation
The ability to absorb moisture vapour is an important functional attribute of solid wood. As the hydrogen bonds that bind the water molecules are reversible, water can be released in a process known as desorption. Heat is generated as vapour is absorbed into the wood and lost again as the solid wood dries, effectively warming and cooling the surrounding space when that is most needed.
The thermal and moisture buffering capacity of solid wood is integral to its ability to maintain a stable internal environment.

Wood and CO2
Solid timber windows and doors reduce the CO2 in the atmosphere. The timber joinery installed in your home stores CO2 as part of its natural composition. After trees are harvested for the making of windows and doors, new ones are planted, which continue to produce life-giving oxygen while removing and storing more CO2 from the atmosphere. Wood products achieve negative net CO2 emissions – lower than any other building material.

Eurotech WinDoors®’ solid timber windows and doors are made of durable timber to achieve a maximum service life. After this life cycle our timber can be recycled or returned to nature as timber is biodegradable, and our timber has not been tanalized.

Solid wood has a very high strength to weight ratio. Wooden joinery is solid to the core instead of other materials like PVC or aluminium. This results in a high strength, high durability, strong corner joints and dimension stability.
Compared to aluminium, steel and PVC, timber is the most stable when the temperature changes.

Solid wood protects you in case of a fire. It burns slowly and it doesn’t melt. It can also be sanded and re-used after a fire.

The solid timber we use is dense which means it takes some effort to dent or mark it. The interior is almost maintenance free. While other materials fade after a short period of time, after many years simply applying a new coat of paint or stain gives your windows a new appearance.