I'm thinking about replacing the windows around the house, but before proceeding I want to make sure it's really necessary.

All the windows are PVC with double glazing, but I'm still not sure how well they insulate.

I have a thermal camera, and to me it doesn’t look too bad—except for the terrace doors.

Is there any energy expert I can call to check this and can tell me what do I need to replace?



—
OldsMan_

7 comments

  1. How does your image compare to newly built houses? Because from this image I would say your windows aren’t very good.

  5. find out the insulation value for your current windows, you should be able to determine it from the inscriptions on the inside. Compare that to new windows.

    Also take things like comfort and sound insulation into account when making your decision to install new windows.

    Some cities have a free or cheap energy consulting service.

  6. The heat loss does not look too bad, looks normal for good windows. Better quality windows will cost you around 10k to replace (without the bigger ones – considering any at the back of the house). I estimate roughly that you will save around 25 euro per month in heating costs, or 300 euro per year.

  7. From a financial point of view new windows are pretty slow to earn back in energy savings. Especially if your current ones are half-decent. Not talking about comfort of course.

    So i guess the question is: do you have high energy costs and might there be other priorities in terms of insulation?

Leave a Reply