Our windows are built to be low maintenance, energy saving and noise reducing, and we can offer a Weighted Sound Reduction Index (Rw) of 45 in a single window. They can also provide a Uw energy rating of 1.0, with a Solar Heat Gain Coefficient (SHGC) up to 2.0 possible. You can choose to enhance your windows or doors with fireproofing properties, with a Bushfire Attack Level of up to BAL 40. With our windows, you don’t have to sacrifice style for function. We offer a variety of colour finishes, including anthracite, black, golden oak woodgrain, ivory, signal grey, and white. If you want to enhance your home with premium quality finishes while enjoying sound and thermal insulation, then Choose Christoffel Australia. By doing so, you’ll be joining dozens of satisfied homeowners in Narrabeen, Patonga, Port Stephens, Central Coast, South Coast, Blue Mountains, Windsor, Sans Souci, Dural, Rockdale, and Burwood.