If there is condensation inside the glass of your double glazing or it appears misty and foggy, this means that the sealed unit has failed. This happens when the gas inside the glazing unit has depleted, which in turn causes the warm air in your room to escape through the window. The good news is that DG Servicing can repair misted double glazed units. Even when the unit is decorated with a leaded window pattern, they can still be repaired to match the existing design.
Here is a summary of sealed unit repair work that DG Servicing can carry out;