So the answer is YES-replacement windows really do add value to your house. They will add both monetary value and non-monetary value such as improving the overall look and feeling of your house!
I’ve been reading various sites and have come across many that claim window replacement increases the value of a home. One of the sites even said that replacing your windows could increase the value of your home by 20%. That’s adding $40,000 to a $200,000 house. What? Clearly this website was exaggerating, but I did conclude that replacement windows do, in fact, add value to your home.
Windows are thermal holes. On average, a house may lose around 30% of its heating energy through its windows. Often times, the heat that is circulating through a home is lost by poor insulation and older, degraded windows and doors. Modern replacement windows are insulated and have specific energy ratings so the homeowner knows just how much insulation to expect out of their investment. The energy ratings take into account the window frame, panes of glass, and their ability to resist air leakage and prevent heat loss. When you buy energy efficient replacement windows, you immediately save money because the energy savings alone make your home more valuable.