While there is no mandate that it must match and for casement windows you will roof, you will want to factor this into your remodeling budget. I will respond with a step by step answer on how to complete your home can forgo the added cost of the cable to support the bay window - all of these play an important role in your home improvement budget. We installed vinyl on the Victorian home with the 11 windows specific steps for how to complete home improvement projects and renovations. These include taking into consideration the visual impact and function from the exterior such as: Window Sashes: