How Often Should Double Glazing Be Replaced

Double glazing is a fantastic investment for your home, offering better insulation, reduced energy bills, and improved security. But like any home improvement, it has a lifespan. On average, double glazing should last between 20 to 35 years. This depends on the quality of the installation and materials used. However, there are certain signs to look out for that might indicate it’s time for a replacement sooner.

Here in Peterborough, we know that we have unique mix of weather. From frosty winters to warmer, humid summers—can contribute to wear and tear on your windows. Over time, seals can fail (a common issue known as “blown double glazing“). Also, condensation may appear between the panes, and frames might become less efficient or damaged.

Signs It’s Time to Replace Double Glazing:

  1. Condensation Between the Glass: If you notice fog or condensation trapped inside the panes, the seals have failed. The unit’s insulating properties are compromised.
  2. Drafts or Cold Spots: This can happen if the frames have weakened. Or if the glazing is no longer as effective at keeping out the cold.
  3. Higher Energy Bills: If your home feels less insulated and your heating costs are climbing, your windows might be the culprit.
  4. Visible Cracks or Damage: Chips, cracks, or damage to the frames or glass are not just unsightly. This can lead to bigger structural issues.
  5. Noise Levels Increasing: Double glazing also acts as a sound barrier. If local street noise seems louder than usual, your windows might not be performing as well.

At Peterborough Doors, we have many years of experience helping homes and businesses upgrade to energy-efficient, modern double glazing. If it has been a couple of decades since your windows were installed? Or if you are noticing any of the signs above, it is worth giving us a call to assess them.

We proudly serve homeowners across Peterborough and nearby areas. Offering a range of high-quality windows tailored to both modern and traditional homes. Whether you need just a single replacement unit or a full upgrade to A-rated energy-efficient windows, we are here to help you make the best choice for your property—and your budget.

Remember, replacing outdated double glazing is not just about keeping your house cosy: it can also boost your property’s value and curb appeal. If you would like advice or a free quote, just reach out. We are always happy to help a fellow Peterborough resident!