Double Glazing

[Canary42]

My double glazing is now some thirty years old (well past the 10-year warranty) and several panes are showing condensation/damp inside the two layers.

I've seen adverts from Companies claiming to de-mist the existing glazing (instead of the more expensive replacement of the glazed panels) - has anyone had any experience of this and is it successful ?

[Buenchico]

The biggest name in the field, Cloudy2Clear, is generally very well-reviewed on TrustPilot:
https://uk.trustpilot.com/review/cloudy2clearwindows.co.uk

[Vagus]

We’ve used cloudy to clear a few times, to replace a number of double glazed panes and can’t fault them.
I don’t think that’s what you’re asking though is it canary? I haven’t come across a company which will demist the existing panes.

[bhg481]

The problem is that you might have streaks on the inside of the glass where the condensation had run down so, even when you've got rid of the condensation, you still have the streaks.

[barry1010]

I've never heard of any company that claims to remove condensation from inside the unit. Have you got a link? I can't imagine how it could be done permanently and satisfactorily. I've have a few units replaced because of condensation.

[TonyV]

Think you will need to replace units, lots of companies available.

[Canary42]

I'm sure I've seen it advertised, but I can't remember where (and I could have possibly just mis-read a glass replacement ad)

Replacement seems the way to go, especially as there are some interior smears exposed by the condensation in places.

Thank you all for your responses.

[jennyjoan]

I have had to replace a good few of my units due to condensation between the two panes.

[Prudie]

I thought once upon a time you could only fix this problem by replacing the whole window including the frame but now I hear and have read about lots (including Cloudy2Clear) who just replace the glass and not the frame which is much cheaper - do you think that is what you've heard?

[Canary42]

Probably Prudie, yes.

[tonyav]

There is a kit available ( I'd change the affected unit though )
https://condensation2clear.com/

[jennyjoan]

I was interested in that link Tony as I still have condensation in some old units but when I read the word "drill". I'll have to give it a miss.

[Canary42]

Thanks for that link Tony, I'm certainly tempted, but a bit trepid.