I had some double glazing units replaced by a local firm when I moved into my
house about 8 years ago. The ones I replaced had obviously failed as
condensation was forming on the inside.

Now the same units have become misty again - no condensation as such, just a
faint film on the inside which looks very ugly (particularly in sunlight). A
glazier who came to look at them told me that this was quite normal and that
one couldn't expect any double glazed units to last more than 8 to 10 years.
Is this true? Are there cheapo units around that will fail more quickly? (Or
conversely more expensive ones that last longer?).

I would appreciate any advice before I go ahead and replace them again.
Thanks

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Mike Lane (UK North Yorkshire)
To contact me replace invalid with mike underscore lane