Silicon may be cheap, but it fades easily, is hard to clean, and susceptible to cracks and abrasion. Bieber uses one of the best quality one, which is easy to clean, fade-resistant, long-lasting and hardly noticeable.
Superior quality wood:
Not all woods are the same. To guarantee a consistently high quality of materials, we use our own experienced wood purchasers, even in the most distant of supply countries. The same strict standards are applied. The same strict standards are applied during treatment, to ensure the wood has a long and healthy life.
Aluminium cladding slider couplings:
Aluminium contracts or expands more than wood in cold or hot weather, creating tension on the frame. We prevent this from happening by mounting the aluminium cladding on slider couplings, similar to a rail system. This also ensures the wood is properly ventilated at all times.
Every standard Bieber aluminium clad wood window has a mushroom pin in its fittings, which greatly prevents the window from being pried open. All locking parts are also made from high-quality materials, providing added security.