Problems and repairs

Misted units, condensation, draughts and bay window roofs: what causes them and whether to repair or replace.

Misted double glazingWhy double glazing mists up between the panes, whether it can be fixed, and what a new sealed unit costs compared with replacing the whole window.
Window condensationWhat causes window condensation inside, outside and between the panes, how to stop it with ventilation and heating, and when it means new windows.
Repair or replace windows?How to decide whether to repair or replace windows: the faults worth fixing, the signs a window has had its day, and what each choice typically costs.
Bay window roof problems and repairsCommon bay window roof problems in UK homes, the warning signs of a leak, and the repairs that fix them, from slipped tiles and lead flashing to a new roof.

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