Standard double-pane windows last 15 to 20 years. If you notice condensation between panes, drafts around the frame, or windows that are difficult to open, it is time to consider replacement. New windows cost $300 to $800 each installed, depending on material and style.
Energy-efficient replacement windows can lower your heating and cooling bills significantly, especially in San Antonio's hot summers, and they improve your home's curb appeal and resale value.
Window Lifespan by Type
Vinyl windows typically last 15 to 25 years. Wood windows can last 30 years or more with proper maintenance but require regular painting and sealing. Aluminum windows last 20 to 25 years but conduct heat, making them less energy-efficient. Fiberglass windows are the most durable, lasting 30 to 50 years, but cost more upfront. The seals on double-pane windows can fail sooner, causing fogging between the panes.
Warning Signs You Need New Windows
Condensation or fog between the glass panes means the seal has failed. Drafts around the frame indicate deteriorating weatherstripping or gaps in the installation. Windows that stick, won't stay open, or are difficult to lock may have warped frames. Visible rot or decay around wood frames is a sign of moisture damage. High energy bills can also suggest your windows are no longer insulating properly.
Window Replacement Costs
Basic vinyl double-hung windows cost $300 to $600 each installed. Mid-range windows with better energy ratings run $500 to $800 each. Wood or fiberglass windows cost $800 to $1,200 or more per window. Installation costs vary based on the size of the window, whether the frame needs work, and the number of windows being replaced. Replacing all windows at once typically gets you a better per-window price.
Energy Efficiency Benefits
Energy Star certified windows with Low-E coating and argon gas fill can reduce your cooling costs by 12 to 33 percent according to the Department of Energy. In San Antonio's climate, south- and west-facing windows benefit the most from Low-E coatings that reflect infrared heat. Look for windows with a low U-factor and Solar Heat Gain Coefficient (SHGC) appropriate for our hot climate.
