Curved windows have a few types. The choice of the right style determines the final look of the house. By curved window, also known as radius windows, we understand a window that has a certain profile bending radius, not arched windows. Arched windows are a separate window type, which we also manufacture; they have an arched top. Bay windows can be made as radius windows, or standard straight ones. Curved windows have bent profiles and curved glazing. We manufacture windows and doors in various systems, including timber, aluminium and steel, so the answer to this question will not be straightforward. Different materials vary in price, but in general, curved windows are more expensive than the standard ones. We will choose together the best system and material for your project, so contact us, and tell us more about the windows you are looking for. The most economical option for your standard bay or oriel bay, would be to use standard window. You can see the example here: LINK. After you contact us, we will prepare a preliminary quotation based on the information from yourself. The quotations we prepare for our clients are valid for a certain time period, so please bear that in mind. After some time, we will have to recalculate the quote. It is also common that the built openings on your newbuilt site will happen to be slightly different than the architect’s plans.