Condensation between window panes in double glazing

[sjchapman]

In the last couple of years there's been more and more condensation building up between panes in my double glazing. I've read that they have failed and will need replacing. My question is: Is it just the glass thats needs replacing or the entire frames as well?

Obviously new glass panes cost wise depend on size but is it generally expensive? Any ball park figures?-
Also any recommendations to who could do it - I'm in Essex

Thanks in advance

 

[noseall]

In the last couple of years there's been more and more condensation building up between panes in my double glazing. I've read that they have failed and will need replacing. My question is: Is it just the glass thats needs replacing or the entire frames as well?

Just the glass. Or to be more precise the DGU (double glazed unit)

Any bull park figures?

....?

- I'm in Essex

....that explains it.