If your energy bills keep rising or you’re noticing more drafts in your home, it may be time to ask: how long do windows actually last? In San Antonio, TX, this is a common concern—and for good reason. Our heat, humidity, and weather changes can take a toll on your home’s windows.

At Spartan Roofing & Siding, we help homeowners recognize the signs of window wear and choose the best time to upgrade. With the right windows, you can save money, improve comfort, and boost your curb appeal.

Window Lifespan and Replacement Signs in San Antonio, TX

Most windows have a lifespan of 15 to 20 years, depending on the materials and installation quality. But in San Antonio’s climate, seals can break down sooner, especially if the windows weren’t made for high heat.

Common signs it’s time to replace your windows include:

  • Fog or Condensation Between Glass Panes: This indicates a broken seal in double- or triple-pane windows, which reduces energy efficiency and visibility while allowing moisture to build up inside the window.
  • Drafts or Inconsistent Room Temperatures: If you feel cold air leaking in or notice uneven temperatures in your home, your windows may be poorly insulated or no longer sealing properly.
  • Difficulty Opening or Closing the Windows: Warped frames, rusted hardware, or age-related damage can make windows hard to operate, which also impacts ventilation and safety.
  • Rotting or Warped Frames: Water damage or age can lead to deterioration of the window frames, compromising the structure and potentially leading to further home damage.
  • Noticeable Increase in Energy Bills: If your heating or cooling costs are rising, your windows may be letting air escape, forcing your HVAC system to work harder and driving up energy usage.

Additional Insight & Key Considerations

Thinking about replacement? Here are a few smart questions to ask:

  • Are the new windows ENERGY STAR-rated for Texas?

  • Will the contractor measure and install the windows properly?

  • What frame materials and glazing options are available?

  • Is financing available or included in the quote?

Quality Windows in San Antonio, TX

Wondering if your windows have seen better days? Spartan Roofing & Siding offers top-rated window installation services in San Antonio, TX. Let us inspect your windows and show you energy-saving options that fit your home. Call us today to schedule your free consultation—your home will thank you.