10 or 25 Years guarantee

Located in Lithuania Kaunas city, Ra Wooden Windows suppliers have the roughest testing ground ever. This region is known for its harsh climate with heavy rain, strong winds, salt spray from the sea, unsettled weather patterns ranging from rain and heat to snow and frost with temperature variations from +30 º to -30 º. We are also proud to offer a 10-25 year guarantee on our windows, this covers the stability of the wood components, condensation or optical faults to the glazing units subject to Ra Wooden Windows Product Warranty. The higher level of automation, combined with production flexibility and efficiency enables our company to offer order production of wooden windows at stock prices. Every incoming order will be allocated to the next free production batch with our manufactures and the data system monitors the production lines and can at any time to inform customers about the production status of their individual order of wooden  windows.

Energy Efficiency

The energy performance of windows is dependent on the thermal efficiency of the construction material and the glazing unit. A high quality wooden windows glass packets is filled with Argon and can achieve a U-value of between 0.4 and 1.2.

The standard Ra Wooden Windows range offers windows with u-values of 1.2 and 1.0 W/m²K. However, if you wish to maximise the energy efficiency of wooden window energy range is also available with u-values as low as 0.6 W/m²K. Developed by one of Europe’s leading innovative manufacturers, these wooden windows are made to measure and offer the ultimate combination of eco-friendly technolgy and top quality craftsmanship.

We offer also make a sliding sash windows, traditional flush casement wooden windows, modern tilt and turn windows and much more depending on costumer needs. Also Denmark wooden windows style range available. For the wooden windows with aluminium clad from outside of windows, triple glazed and filled with argon given extended guarantee of up to 25 years.

Also check interesting blog about Windows OS history