I WOULD BE VERY GRATEFUL IF ANYONE CAN HELP. my flat was bulit by Wimpey , nearly 10 years old (perhaps NHBC 10 yr certificate might cover me?). The windows are wooden frame with double glazed panels,approx 40cm wide by 55cm height(lower parts), and approx 35cm wide by 45cm height (upper opening parts). SOME OF THESE PANELS HAVE MIST/CONDENSATION INSIDE. Is it easy to get hold of these panels? How much do they cost? Is it easy to fix? or would it be better to get a professional and how much would they charge? OR will my NHBC cover me (1month before it's 10 yrs are up) MANY THANKS!!!