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You can get guys who will come and drill a hole into the outside pain if glass then flood the cavity with warm air and "seal" (usually with a sticker) the hole they've created. Its cheap but has some issues:
- The original problem with the failed seal is not addressed so will fill with condensation again.
- The window will be much less effective at insulating.
If you avoid the big national companies (Everest etc.) then by shopping around you should be able to get a replacement unit for a pretty reasonable price.
- The original problem with the failed seal is not addressed so will fill with condensation again.
Bobbo
@crossedthread
Pair of big old patio windows, ‘70’s style, one leaf slides open, double glazed, now filling with condescension as I guess the seals have gone / are failing - is there a fix other than having to spend big monies to have them replaced?