Your home’s value can increase or decrease over the years, depending on the market and how well you take care of it. . One of the most effective ways to boost the value of your home is by looking to invest in new windows. Window replacement might seem costly at first—an upscale window replacement project can fall between $15,000 to 19,000—but when you think of how much it can affect your property value in general, this is a smart investment. Over time, new windows can pay for themselves, especially if you go about the project the right way. Cost vs. Value: Window Replacement (Vinyl and Wood)