Our house was built seven years ago. The house came with UPVC double
glazing installed.

Both south facing bedrooms have a double glazed unit consisting of two
opening windows on either side of a central, non opening, window. In
both rooms, one of the opening windows looks as though there is
condensation inside.

What are the "Window Doctor" type services like? Would they be able
to fix this sort of thing? I presume both windows are "sealed units"?
How much would such a service cost? What are peoples views of this
sort of thing? Is it something I could *easily* fix myself?

Any info, horror stories etc gratefully received.

Nozza
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