The final cost for a complete window replacement project depends entirely on the number of windows, the style of windows, the kinds of special features selected (such as Triple Paned glass units) and the method of replacement (retrofit or full frame) that are required. Just solely based on window style alone, you can expect to pay anywhere between $280 and $380 (+ installation) for most basic styles such as sliders or picture windows. Specialty windows, like bay or bow windows, start around $1600. Regardless, outfitting your home with new windows is a long-term investment that requires careful planning and budgeting. Contact Window Mart today to get a custom tailored estimate for your project.