Double Glazing Window Repairs If your double-glazed windows are defective, you should repair them as soon as possible. If the seals have been broken, it can cause condensation, draughts and make your house less efficient in energy use. Repairing double glazing is usually less expensive than replacing it. This article https://xn--80agpaebffqikmu.xn--p1ai/user/tubachard69/