Double glazing is formed from two panes of glass sealed together, and a ‘misted’ unit is where condensation appears between these two panes, a failure that can occur for a variety of reasons.
Double glazed glass panes are separated by a hollow extruded space bar which is filled with a desiccant to ensure a state of dryness, and then sealed into position.
The main reason for a sealed glazed unit to break down is time and the environment. The sun, wind, and hot and cold temperatures lead to the sealed unit constantly expanding and contracting, essentially acting like a pump, slowing sucking in and releasing air from between the glass panes.
Eventually the desiccant becomes saturated and can no longer remove moisture from the air within a unit, this leads to condensation between the glass panes.
Other reasons for failure may be that the sealed unit has been badly manufactured or incorrectly fitted when your windows were installed.
It is a common problem, but whatever the reasons for failure, we can resolve it.
It is important to repair the ‘misted unit’ as the insulating effect is greatly reduced, and the longer it’s left, the more damage will occur. Mist becomes water droplets that deposit mineral residue, marking the glass and causing permanent glass damage.
Our experienced, hard-working, and professional team will ensure you are kept fully informed of your fitting date, the installation will be done to an extremely high standard, and our fitters will clean up thoroughly after too! …and if you have any queries afterwards, we are always available.
Get in touch to organise a complimentary, no obligation consultation, we would love to help.
Our quotation system for misted unit replacement is quick and easy:
Measure the glass, excluding the frame, both horizontally and vertically
Call or email us with the measurements
If you are happy with the guide price, we will visit to finalise the details. All our work comes with a 10-year guarantee as standard too.