Repair or brand new windows?

[Dandelionrarrrr]

I was wondering whether anyone has any advice regarding upvc windows. Our current house has 16 individual window panes with the small windows above them. (I’ve attached a photo because I’m probably not using the correct terminology)

Unfortunately of the 16 large windows 13 have blown and become misty. The small top windows seem fine.

To repair an individual window will cost us about £100 coming to a total of £1,300 or something like that.

I have had a quote for £4,200 to supply and fit all windows. With 10yr warranty.

We are aiming to get it up to a decent standard rent and move to a bigger house as we have run out of space.

Clearly the repair option seems to be best for us in order to save money. But, something doesn’t seem right to me that if so many have blown there must be something wrong with the frames and I would have thought they could go again.

Any advice? Or ways to check?

The glass is a sealed unit that sits within the frame and as such, it's an issue with the sealed units themselves rather than with the frames.

The only reason to replace the frames too would be if you dont like the style / colour / condition etc of the existing frames.

Actually frame technology has advanced a lot so it would depend how old you think the original frames are.

We replaced all of our double glazing due to a few blown panes but we knew that the windows were 15 years old. The difference in our heating bill and noise reduction is noticeable.

Thanks for your help. Just had a guy around and quoted £1,140 to replace/repair 13 windows and freshen up the sealant and a few hinges. (Just thought it may help someone else out there)

We have replaced blown windows in our 60s double glazed house. The new windows have better framing and a larger sealant gap.
I suppose it depends on the style and age of the original windows.

A new set of windows will cost so much that they wil never reclaim their cost in energy savings.

Just change the glass where misted.

There are lots of small local firms reglazing with new DG units, it is not a complicated job and you don't need a national company or a salesman.

If the windows were badly fitted and have gaps around the frames in the wall, this can easily be filled with foam and trim.